KR20190046733A - Energy storage device, and device for managing power - Google Patents

Abstract

The present invention relates to an energy storage apparatus and a power management apparatus. According to one embodiment of the present invention, the energy storage apparatus comprises: at least one battery pack; a communication module transmitting power-on information or energy storage amount information to the power management apparatus, and receiving a charging or discharging command from the power management apparatus; a connection unit receiving AC power supplied from an internal power grid through a solar cell module based on the charging command or outputting AC power to the internal power grid based on the discharging command; and a power conversion unit receiving the AC power from the internal power grid and converting the AD power into DC power based on the charging command when the charging command is received from the power management apparatus, or converting DC power stored in the battery pack into AC power based on the discharging command when the discharging command is received from the power management apparatus. Accordingly, energy can be efficiently stored.

Description

[0001] The present invention relates to an energy storage device,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energy storage device and a power management device, and more particularly, to an energy storage device and a power management device capable of efficiently storing energy.

With the recent depletion of existing energy sources such as oil and coal, interest in alternative energy to replace them is increasing. Accordingly, interest in renewable energy using sunlight, wind power, and small hydro power is increasing.

It is necessary to supply energy or to store energy by using renewable energy, so that an energy storage device for storing energy is used.

It is an object of the present invention to provide an energy storage device and a power management device capable of efficiently storing energy.

According to an aspect of the present invention, there is provided an energy storage device including at least one battery pack and a power management device for transmitting power on information or energy storage amount information, A connection section for receiving the AC power supplied to the internal power network via the solar module based on the charging command or for outputting the AC power to the internal power network on the basis of the discharge command, When receiving the charge command from the power management apparatus, converts AC power from the internal power network into DC power based on the charge command, or receives a discharge command from the power management apparatus, And a power conversion section for converting the power source into an AC power source.

According to another aspect of the present invention, there is provided a power management apparatus for receiving solar power information generated by a solar module, receiving commercial power information supplied to the internal power grid, Based on at least one of the load power information, the commercial power information, the solar power information, and the energy storage amount information, the communication module receiving the load power information and receiving the energy storage information stored in the energy storage device, Generating a charge command to charge the power source to the at least one energy storage device or generating a discharge command for discharging AC power from the energy storage device to the internal power grid, And transmits a discharge command to the energy storage device.

According to another aspect of the present invention, there is provided a mobile terminal including a display, a wireless communication unit for exchanging data with a power management apparatus, a power management unit for entering a power monitoring mode for the internal power network, And a control unit for controlling to display the monitoring information on the display when receiving the monitoring information on the power information in the internal power network from the power management apparatus.

According to another aspect of the present invention, there is provided a method of operating an energy storage device, the method comprising: receiving a charge command from a power management apparatus; receiving an AC power from an internal power network based on a charge command; Converting the DC power stored in the battery pack into AC power based on the discharge command when receiving the discharge command from the power management apparatus; And outputting the converted AC power to the internal power network.

According to another aspect of the present invention, there is provided a method for operating a power management apparatus, the method comprising: receiving photovoltaic power information generated by a photovoltaic module and supplied to an internal power grid; The method comprising the steps of: receiving power information and commercial power information supplied to an internal power network; and controlling the AC power of the internal power network based on at least one of load power information, commercial power information, solar power information, Generating a charge command for charging the at least one energy storage device or generating a discharge command for discharging the AC power from the energy storage device to the internal power network and for transmitting the charge command or discharge command to the energy storage device .

According to another aspect of the present invention, there is provided a method of operating a mobile terminal, including: entering a power monitoring mode for an internal power network; Receiving monitoring information on power information in the internal power grid from the power management apparatus; and displaying monitoring information on the display.

According to the embodiment of the present invention, the energy storage device converts or stores AC power from the internal power network into DC power based on a command for receiving or discharging a charging command received from the power management apparatus, And output to the internal power grid. Thus, energy can be efficiently stored in the energy storage device.

Particularly, the power conversion unit of the energy storage device includes a bidirectional converter that receives the AC power and converts the DC power into DC power or converts the DC power stored in the battery pack into AC power, So that it can be simply configured.

On the other hand, when the energy storage device is powered on, the operation of the energy storage device can be controlled from the power management device by performing the pairing with the power management device, so that the user's usability can be increased.

Meanwhile, when power is supplied to the energy storage device, the power management device performs pairing with the powered-on energy storage device so that the energy storage device provided in the same internal power network can be simply controlled.

On the other hand, the power management apparatus can efficiently control each energy storage device by allocating a plurality of different radio channels to a plurality of energy storage devices.

On the other hand, the power management apparatus includes at least one of solar power information generated in the solar module, commercial power information supplied to the internal power network, load power information consumed in the internal power network, and energy storage information stored in the energy storage device It is possible to efficiently control the energy storage device connected to the internal power network by generating a charge command or a discharge command based on the charge command or the discharge command and transmitting the generated charge command or discharge command to the energy storage device.

On the other hand, the power management apparatus includes at least one of solar power information generated in the solar module, commercial power information supplied to the internal power network, load power information consumed in the internal power network, and energy storage information stored in the energy storage device The power to be output to the outside of the internal power network is calculated and the calculated output power information is transmitted to the power distributing unit connected to the internal power network so that the corresponding power can be output to the outside.

1 is an example of a power supply system configuration diagram according to an embodiment of the present invention.
2 is an example of a power supply system configuration diagram according to another embodiment of the present invention.
Figures 3a-3b are various examples of plan views illustrating the placement of each of the devices in the power supply system of Figure 1;
4A to 4B are perspective views showing various examples of the energy storage device of FIG.
Figure 5 is a diagram illustrating the connection of the energy storage device of Figure 4b.
Figure 6 is a block diagram of the energy storage device of Figure 1;
7 is an internal block diagram of the power management apparatus of FIG.
8 is an internal block diagram of the mobile terminal of FIG.
9 is a flowchart illustrating an operation method of an energy storage device according to an embodiment of the present invention.
10 is a flowchart illustrating an operation method of a power management apparatus according to an embodiment of the present invention.
Figs. 12 to 17 are diagrams referred to in explaining the operation method of Fig. 9 or Fig.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The suffix " module " and " part " for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms " module " and " part " may be used interchangeably.

1 is an example of a power supply system configuration diagram according to an embodiment of the present invention.

Referring to the drawings, a power supply system 10 according to an embodiment of the present invention includes solar power regenerated from a solar module 200, commercial power from a commercial power plant 840, To the internal power grid 50 via the power line 820.

The power supply system 10 can also supply a part of the stored power stored in the energy storage devices 100a, 100b, ..., 100e to the power exchange 800 through the power distribution unit 820. [

Under this power supply system 10, in addition to the solar module 200 shown in FIG. 1, renewable power generated in various renewable energy devices is supplied to the internal power grid 50 through the power distribution unit 820 May be supplied.

Meanwhile, the power supply system 10 according to the embodiment of the present invention may be a system for supplying electric power to a building, but the present invention is not limited thereto, and various expansion is possible. For example, it may be a system for supplying electric power to each home in a collective building, or a system for supplying power to each of a plurality of buildings in a certain area. In the following, the power supply system 10 is mainly described as a system for supplying power within a single building.

1 includes an internal power grid 50, a plurality of energy storage devices 100a, 100b, ..., 100e, a photovoltaic module 200, a solar module A power management unit 500, a network sharer 550, a power distribution unit 820, and the like, which convert power from the power management unit 200, as shown in FIG.

In the figure, a plurality of loads 700a, 700b, ..., 700e are connected to the internal power grid 50 through respective connection terminals 70a, 70b, ..., 70e connected to the internal power grid 50, And electrically connected.

In addition, a plurality of energy storage devices 100a, 100b, ..., 100e are connected to the internal power grid 50 through respective connection terminals 60a, 60b, ..., 60e connected to the internal power grid 50, , And electrically connected.

When operating in the charging mode, the plurality of energy storage devices 100a, 100b, ..., 100e receive AC power from the internal power grid 50, convert the AC power into DC power, The pack can store DC power.

The plurality of energy storage devices 100a, 100b, ..., 100e may convert stored DC power into AC power and supply the DC power to the internal power network 50 when operating in the discharge mode.

On the other hand, when the commercial AC power supply to the internal power network is interrupted, that is, when the electric power is interrupted, the plurality of energy storage devices 100a, 100b, ..., 100e can operate in the discharge mode. Accordingly, the DC power stored in the plurality of energy storage devices 100a, 100b, ..., 100e can be converted into the AC power and supplied to the internal power network 50. [ As a result, the loads 700a, 700b, ..., 700e electrically connected to the internal power grid 50 can be supplied with the alternating current power stably even during the power failure.

The operation and internal structure of the plurality of energy storage devices 100a, 100b, ..., 100e will be described later with reference to Figs. 6, 9, and the like.

In the embodiment of the present invention, the charging mode and the discharging mode of each of the energy storage devices 100a, 100b, ..., 100e are performed based on a charging command or a discharging command from the power management apparatus 500 .

The power management apparatus 500 is a device that can manage power in the internal power grid 50 and can be called a Home Energy Management System (HEMS).

To this end, the power management device 500 may perform wireless data communication with each of the energy storage devices 100a, 100b, ..., 100e. For example, a wireless data communication can be performed between the power management apparatus 500 and each of the energy storage devices 100a, 100b, ..., 100e by the ZigBee communication method.

On the other hand, a WiFi system is available between the power management apparatus 500 and each of the energy storage devices 100a, 100b, ..., 100e in addition to the Zigbee communication system. (Bluetooth), Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), and RF method. Hereinafter, a description will be given mainly to the case where the Zigbee communication method is performed between the power management apparatus 500 and each of the energy storage devices 100a, 100b, ..., 100e.

The power management apparatus 500 may receive power on information or energy storage information from each of the energy storage devices 100a, 100b,... A charge command, a discharge command, or the like can be transmitted to the controller 100e.

In addition, the power management apparatus 500 can perform wireless data communication with the junction box 300. [ For example, a wireless data communication can be performed between the power management apparatus 500 and the junction box 300 by the Zigbee communication scheme. Of course, other communication methods such as WiFi may be used in addition to Zigbee communication. Hereinafter, a description will be given mainly of the Zigbee communication method being performed between the power management apparatus 500 and the junction box 300. [

Meanwhile, the power management apparatus 500 can receive solar power information generated in the solar module 100 and power-converted in the junction box 300 from the junction box 300. [

In addition, the power management apparatus 500 can perform wireless data communication with the power distribution unit 820. [ For example, a wireless data communication can be performed between the power management apparatus 500 and the power distribution unit 820 by the Zigbee communication scheme. Of course, other communication methods such as WiFi may be used in addition to Zigbee communication. Hereinafter, a description will be mainly given of the case where the Zigbee communication method is performed between the power management apparatus 500 and the power distribution unit 820. [

On the other hand, the power management apparatus 500 receives the commercial power information supplied from the power distribution unit 820 to the internal power network 50 from the commercial power plant 840, and receives the load power consumed in the internal power network 50 Information can be received.

Meanwhile, the power management apparatus 500 may perform wireless data communication with a plurality of loads 700a, 700b, ..., 700e electrically connected to the internal power network. For example, a wireless data communication can be performed between the power management apparatus 500 and the plurality of loads 700a, 700b, ..., 700e by the Zigbee communication method. Of course, other communication methods such as WiFi may be used in addition to Zigbee communication. Hereinafter, a description will be given mainly to the case where the Zigbee communication method is performed between the power management apparatus 500 and the plurality of loads 700a, 700b, ..., 700e.

On the other hand, the power management apparatus 500 can receive load power information consumed in the internal power grid 50 from a plurality of loads 700a, 700b, ..., 700e.

The load power information consumed in the internal power grid 50 is transmitted from the power distributor 820 or the plurality of loads 700a, 700b, ..., 700e to the power management apparatus 500 However, in the following description, the description will be focused on what is transmitted from the power management apparatus 500. [

The power management apparatus 500 may perform wireless data communication with the powered-on energy storage devices 100a, 100b, ..., 100e.

To this end, first, the power management apparatus 500 receives the pairing request signal as the power-on information from the power-on energy storage device and, in response thereto, transmits a pairing response signal including a radio channel assignment signal or the like Can be transmitted. The power management apparatus 500 can perform wireless data communication through the assigned radio channel when the pairing with the powered-on energy storage device is completed.

Meanwhile, the power management apparatus 500 may include solar power information generated in the solar module 200 and power information of the solar modules 200 for controlling the charging mode and the discharging mode operation of the energy storage devices 100a, 100b, ..., And receives the commercial power information supplied to the internal power grid 50 and receives the load power information consumed in the internal power grid 50 and the energy storage amount information of the energy storage devices 100a, 100b, ..., can do.

For example, the power management apparatus 500 can receive solar power information generated by the solar module 200 from the junction box 300 via ZigBee communication. On the other hand, the power management apparatus 500 can receive the commercial power information supplied to the internal power grid 50 via the Zigbee communication from the power distributor 820, and the load power information consumed in each load. On the other hand, the power management apparatus 500 can receive the energy storage amount information of each energy storage device through the zigbee communication from each of the energy storage devices 100a, 100b, ..., 100e. Here, the energy storage amount information may be a concept including power information stored in the battery pack, or further storable power information.

The power management device 500 may be configured to determine whether at least one of the energy storage devices 100a, 100b, ..., 100e is based on at least one of solar power information, commercial power information, load power information, , It is determined to operate in the charge mode, and a charge command can be generated in accordance with the determined charge mode.

Alternatively, the power management apparatus 500 may generate at least one of the energy storage devices 100a, 100b, ..., 100e based on at least one of the solar power information, the commercial power information, the load power information, One can determine to operate in the discharge mode and generate a discharge command in accordance with the determined discharge mode.

Alternatively, when the commercial AC power supply to the internal power network is interrupted, that is, when the AC power is interrupted, the power management apparatus 500 receives this information from the power distribution unit 820 or the like and accordingly operates in the discharge mode It is possible to generate a discharge command in accordance with the determined discharge mode.

Then, the power management apparatus 500 can transmit the charge command or the discharge command to the corresponding energy storage devices through the Zigbee communication.

Meanwhile, the power management apparatus 500 may perform data communication with the external server 570 through the network sharing device 550 or the like.

For example, the external server 570 can provide power price information of commercial power, peak time power supply information, and the like. The external server 570 can receive the information from the power exchange 800 or the commercial power plant 840 and transmit the information to the power management apparatus 500 via the network 560. [

Accordingly, the power management apparatus 500 receives the power price information of the commercial power, the peak time power supply information, and the like, and generates a discharge command or a charge command by further considering this when generating the discharge command or charging command You may.

On the other hand, the above-described power price information and peak time power supply / demand information of commercial power may be received from the power exchange 800 or the commercial power plant 840 in addition to the external server 570.

On the other hand, the network router 550 can exchange data with the power management apparatus 500 and the external network 560 so that the power management apparatus 500 can be connected to the external network.

For example, the network router 550 may provide an internal network for the internal power grid 50, in conjunction with a power management device that manages power within the internal power grid 50. In particular, it may be a wireless network router capable of wireless data communication. Accordingly, the network router 550 can be named AP (ap access).

Meanwhile, the network sharer 550 can allocate a wireless channel to the electronic devices in the internal network, and perform wireless data communication through the corresponding channel. For example, it is possible to perform wireless data communication with the mobile terminal 600b (mobile terminal) located in the internal network by the WiFi method.

As a result, the mobile terminal 600b located inside the mobile terminal 600 can exchange data with the power management apparatus 500 and perform power information monitoring, remote control for power management, etc. through connection with the power management apparatus .

Meanwhile, the network router 550 can perform data communication with external electronic devices via the external network 560 in addition to the internal network. For example, it can perform wireless data communication with an external mobile terminal 600a. The network router 550 at this time may be a network access server (NAS).

As a result, the mobile terminal 600a located therein can exchange data with the power management apparatus 500 and perform power information monitoring, remote control for power management, etc. through connection with the power management apparatus .

On the other hand, the solar module 200 converts sunlight to DC power and outputs it. To this end, the solar module 200 may include a plurality of solar cells (not shown). (Not shown), a second sealing material (not shown), a rear substrate (not shown) positioned on the lower surface of the first sealing material, and a second sealing material And a front substrate (not shown) positioned on the front substrate.

First, a solar cell is a semiconductor device that converts solar energy into electrical energy. The solar cell is a silicon solar cell, a compound semiconductor solar cell, a tandem solar cell, Or a CdTe, CIGS type solar cell, or the like.

And, each solar cell can be electrically connected in series or in parallel or series-parallel.

On the other hand, the junction box 300 receives DC power from the solar module 200, performs power conversion, and outputs AC power. For this purpose, the junction box 300 may include a bypass diode (not shown), a dc / dc converter (not shown), a smoothing capacitor, an inverter (not shown), and the like.

In addition, the junction box 300 may further include a communication module (not shown) for communication with the power management device 500. [ Specifically, the junction box 300 can transmit the photovoltaic power information generated in the photovoltaic module 200 and power-converted in the junction box 300 to the power management apparatus 500. The junction box 300 can also receive solar power control information from the power management apparatus 500 and adjust the output of the solar power.

1 illustrates that the solar power output from the junction box 300 is supplied to the internal power grid 50 via the power distribution unit 820. [

In FIG. 1, the junction box 300 is separately shown in the solar module 200, but it may be integrally attached to the back surface of the solar module 200.

2 is an example of a power supply system configuration diagram according to another embodiment of the present invention.

The power supply system 10 of FIG. 2 is substantially the same as the power supply system 10 of FIG. 1 except that solar power output from the junction box 300 is supplied to the internal power grid (50).

Figures 3a-3b are various examples of plan views illustrating the placement of each of the devices in the power supply system of Figure 1;

First, Fig. 3A shows an example of the arrangement of the respective devices in the power supply system of Fig. Referring to FIG. 3A, among the devices in the power supply system 10, the power management device 500 may be disposed in the living room. The first energy storage device 100a is connected to the living room, the second energy storage device 100b to the inside, the third energy storage device 100c to the small room, and the fourth energy storage device 100d to the toilet , And the fifth energy storage device 100e may be disposed in the kitchen.

Each of these energy storage devices 100a, 100b, ..., 100e is connected to the internal power grid 50 via respective connection terminals 60a, 60b, ..., 60e, And can be electrically connected.

On the other hand, the first load 700a TV is connected to the living room, the second load 700b to the kitchen, the washing machine to be the third load 700c to the veranda, and the air conditioner to the fourth load 700d to the small room And the fifth load 700e may be disposed in the kitchen.

Each of these loads 700a, 700b, ..., 700e is electrically connected to the internal power grid 50 through respective connection terminals 70a, 70b, ..., 70e, Can be connected.

The power distribution unit 820 may be disposed at the entrance door and the solar module 200 may be disposed at the building roof. The junction box 300 may be disposed near the power distribution unit 200, For example, be disposed outside.

Meanwhile, the power management apparatus 500 disposed in the living room can perform wireless data communication with each of the energy storage devices 100a, 100b, ..., 100e through Zigbee communication. In addition, the power management apparatus 500 can perform wireless data communication with the respective loads 700a, 700b, ..., 700e through Zigbee communication. Further, the power management apparatus 500 can perform wireless data communication with the power distribution unit 820 or the junction box 300 through Zigbee communication.

Next, FIG. 3B shows another example of the arrangement of the respective devices in the power supply system of FIG. 3B, the photovoltaic module 200, the junction box 300, the power management device 500, the loads 700a, 700b, ..., and 700e, The positions of the distributing portions 820 may be arranged at the same position as in Fig. That is, the solar module 200, the junction box 300, the power management unit 500, the loads 700a, 700b, ..., and 700e, and the power distribution unit 820 can be arranged on one floor have.

On the other hand, each of the energy storage devices 100a, 100b, ..., 100e can be separately arranged in different layers. For example, as shown in the figure, it may be disposed in the underground B1. At this time, when each of the energy storage devices 100a, 100b, ..., 100e is provided with a socket capable of plug connection, each energy storage device 100a, 100b, ... 100e may be connected to each other in a serial manner as shown in the drawing. Thus, by arranging the energy storage devices 100a, 100b, ..., 100e in separate layers, each of the energy storage devices 100a, 100b, ..., 100e can be used without any space limitation.

4A to 4B are perspective views showing various examples of the energy storage device of FIG.

4A, the energy storage device 100 includes a plug 112 that can be connected to a socket for electrical connection with the internal power grid 50, And a display unit 105 for displaying a power-on state, an energy storage amount, and the like. With this display unit 105, the user can immediately grasp the energy storage amount.

4B, the energy storage device 100 of FIG. 4B is similar to FIG. 4A except that it further includes a socket 125 connectable with a plug 112. FIG. Thereby, it can be electrically connected to each energy storage device.

This power socket 125 can be connected to a power plug of another energy storage device and when the power plug of another energy storage device is electrically connected to the power socket 125, . That is, the storage capacity of the DC power supply that can be stored in the energy storage device can be varied.

Figure 5 is a diagram illustrating the connection of the energy storage device of Figure 4b.

Referring to the drawings, each energy storage device 100a, 100b, ..., 100e may be electrically connected in series with each other. Specifically, the plug 112a of the first energy storage device 100a is connected to the socket 125b of the second energy storage device 100b, and the plug 112b of the second energy storage device 100b is connected to the non- In this manner, each energy storage device 100a, 100b, ..., 100e can be electrically connected in series with each other, such as being connected to a socket 125c of the third energy storage device 100c. This can correspond to the connection states of the energy storage devices 100a, 100b, ..., 100e of FIG. 3b.

Since the battery packs provided in the energy storage devices 100a, 100b, ..., 100e are electrically connected by the electrical connection between the energy storage devices 100a, 100b, ..., 100e, It is possible to expand the storage capacity of DC power that can be stored in the energy storage device.

Figure 6 is a block diagram of the energy storage device of Figure 1;

Referring to the drawings, the energy storage device 100 may include a connection unit 130, a power conversion unit 140, a communication module 150, and a built-in battery pack 160.

The connection unit 130 may include only an AC power source terminal (not shown). According to the embodiment of the present invention, the energy storage device 100 is connected to the AC power supply 50 via the solar module 200, based on the charge command from the power management device 500, Or can output AC power to the internal power network 50 based on a discharge command from the power management apparatus 500. [ Accordingly, a DC power supply terminal is not required and only an AC power supply terminal is provided.

When receiving the charging command from the power management apparatus 500, the power conversion section 140 can receive the AC power from the internal power network 50 and convert it into DC power based on the charging command. The converted DC power may be transmitted to the battery pack 160.

When receiving the discharge command from the power management device 500, the power conversion section 140 can convert the DC power stored in the battery pack 160 into AC power, based on the discharge command. Then, the converted AC power can be transmitted to the above-described internal power grid 50 via the connection unit 130.

To this end, the power conversion unit 140 receives the AC power from the internal power network 50 and converts the AC power into DC power, or converts the DC power stored in the battery pack 160 into AC power ac / dc converter (bidirectional ac / dc converter).

The communication module 150 performs data communication with the power management device 500. For example, power-on information or energy-amount information may be transmitted to the power management apparatus 500, and a charge command or a discharge command may be received from the power management apparatus 500. As described above, various communication methods are possible, and among them, wireless data communication is performed by the Zigbee communication method.

On the other hand, when the power is turned on, the communication module 150 can transmit a pairing request signal to the power management unit 500 as power-on information. The power management apparatus 500 can receive a pairing response signal including radio channel information. Accordingly, the communication module 150 can perform wireless data communication with the power management apparatus 500 via a wireless channel different from that of the other energy storage device 100.

On the other hand, the communication module 150 can receive a charge command or a discharge command from the power management apparatus 500 after the pairing ends. In addition, the communication module 150 may transmit the energy storage amount information stored in the battery pack 160 to the power management device 500 after the pairing ends.

Meanwhile, the communication module 150 can control the power conversion unit 140 and the battery pack 160.

For example, the communication module 150 can control the operation of the power conversion unit 140 to convert the AC power from the internal power network 50 to DC power when the charging command is received. The communication module 150 can control the battery pack 160 so that the converted DC power is stored in the battery pack 160.

The communication module 150 controls the operation of the battery pack 160 so that the DC power stored in the battery pack 160 is transferred to the power conversion unit 140 when the discharge command is received. The communication module 150 can control the power conversion unit 140 to convert the DC power supplied to the power conversion unit 140 to AC power.

That is, the communication module 150 can control the battery pack 160 to operate in the charging mode or the discharging mode.

The battery pack 160 may include a battery control unit 162, a battery cell unit 164, and a temperature control unit 166 in the battery pack case.

The battery cell unit 164 includes a plurality of battery cells. These battery cells may be connected in series, parallel or series / parallel combination.

The temperature regulating unit 166 regulates the temperature of the battery cell unit 164. To this end, the temperature regulating unit 166 may include temperature sensing means (not shown) to sense the temperature of the battery cell unit 164. The temperature control unit 166 may further include a fan driving unit (not shown), and may drive the fan to lower the temperature of the battery cell unit 164 based on the sensed temperature. It is preferable that the fan driving means is disposed in a region corresponding to an area in which all the battery cells are arranged, in order to improve the efficiency of temperature control.

On the other hand, the battery controller 162 performs overall control of the battery pack 160. For example, when the temperature of the battery cell unit 164 rises above a predetermined temperature, the temperature control unit 166 can be controlled to lower the temperature.

As another example, the battery control unit 162 may control the balancing of the DC power stored in each battery cell in the battery cell unit 164. It can detect the DC power stored in the battery cell and adjust the balancing of the DC power based on the detected DC power.

The battery control unit 162 may transmit the status information (temperature, stored power level, etc.) of the battery pack 160 to the communication module 150. The battery control unit 360 may also receive status information (required power level, etc.) of the energy storage device 100 from the communication module 150. [

7 is an internal block diagram of the power management apparatus of FIG.

7, the power management apparatus 500 may include a communication module 530, a storage unit 540, and a processor 520 as a power management apparatus for the internal power network 50 .

The communication module 530 in the power management device 500 is connected to each of the devices in the power supply system 10 such as the respective energy storage devices 100a, 100b, ... 100e, the junction box 300, , And the data can be wirelessly exchanged by the plurality of loads 700a, 700b, ... 700e and the Zigbee communication method. To this end, the communication module 530 may include a Zigbee communication module.

Specifically, the communication module 530 can receive power-on information or energy storage information from each of the energy storage devices 100a, 100b, ..., 100e, ... < / RTI > 100e).

The communication module 530 receives a pairing request signal from an energy storage device of the plurality of energy storage devices 100a, 100b, ..., 100e that is powered on, and in response, A pairing response signal can be transmitted. The pairing response signal may include a radio channel assignment signal or the like.

Next, the communication module 530 can receive the photovoltaic power information generated in the photovoltaic module 100 and power-converted in the junction box 300, from the junction box 300. [

Next, the communication module 530 receives the commercial power information supplied from the power distribution unit 820 to the internal power network 50 from the commercial power plant 840, and receives the load power information Lt; / RTI >

On the other hand, the communication module 530 can receive the power failure information from the power distributor 820 when the supply of commercial AC power to the internal power grid 50 is interrupted, that is, when the power is interrupted.

Next, the communication module 530 can receive the load power information consumed in the internal power grid 50 from the plurality of loads 700a, 700b, ..., 700e.

On the other hand, the communication module 530 can exchange wireless data with the network router 550. For example, wireless data can be exchanged by the WiFi method. To this end, the communication module 530 may include a WiFi module.

The communication module 530 can exchange data with the mobile terminal 600b connected to the internal network or the mobile terminal 600b connected to the external network 560 by exchanging the wireless data with the network router 550. [ And data can be exchanged.

On the other hand, the processor 520 controls the overall operation of the power management device 500. In particular, the power management device 500 may communicate with the plurality of energy storage devices 100a, 100b, ..., 100e to control to operate in a charge mode or a discharge mode.

For example, the processor 520 may determine whether each energy storage device 100a, 100b, ... 100e is based on at least one of received solar power information, commercial power information, load power information, And to calculate power information to be charged to the corresponding energy storage devices under the charge mode. Then, a corresponding charge command can be generated.

Alternatively, the processor 520 may determine at least one of each energy storage devices 100a, 100b, ..., 100e based on at least one of solar power information, commercial power information, load power information, To operate in the discharge mode, and in the discharge mode, calculate power information to be discharged from the corresponding energy storage devices to the internal power grid 50. Then, a corresponding discharge command can be generated.

On the other hand, the processor 520 may determine to operate in the discharge mode when the commercial AC power supply to the internal power network is interrupted, i.e., when the power is interrupted, and generate a discharge command in accordance with the determined discharge mode.

The processor 520 is connected to the internal power grid 50 based on the energy storage amount information received from the plurality of energy storage devices 100a, 100b, ..., 100e, the load power information received from the power distributor 820, The power information can be monitored for at least one of an electrically connected load, or an energy storage device electrically connected to the internal power network. That is, real-time power information can be monitored.

The storage unit 540 may store radio channel information for different channel assignments in the energy storage devices 100a, 100b, ..., 100e. The wireless channel information may include a wireless channel name, a frequency range, security information, and the like. Also, the storage unit 540 may store the device names (device type, device serial number, ...) of the respective devices to be wirelessly connected through the power management device 500 and the like.

Meanwhile, the storage unit 540 may store radio channel information with the network router 550. The wireless channel information may include a wireless channel name, a frequency range, security information, and the like.

8 is an internal block diagram of the mobile terminal of FIG.

8, the mobile terminal 600 includes a wireless communication unit 610, an A / V input unit 620, a user input unit 630, a sensing unit 640, an output unit 650, A memory 660, an interface unit 670, a control unit 680, and a power supply unit 690.

The wireless communication unit 610 according to the embodiment of the present invention can wirelessly exchange data with the power management unit 500 through the network sharing device 550. [ For example, when the mobile terminal 100 is in the power monitoring mode for the internal power network, the wireless communication unit 610 can send a power monitoring request and accordingly receive monitoring information. As another example, when the mobile terminal 100 is in the remote control mode for the internal power network, the wireless communication unit 610 can transmit a remote control signal. Then, the result information on the remote control can be received.

The wireless communication unit 610 may include a broadcast receiving module 611, a mobile communication module 613, a wireless Internet module 615, an NFC module 617, and a GPS module 619.

The broadcast receiving module 611 may receive at least one of a broadcast signal and broadcast related information from an external broadcast management server through a broadcast channel. At this time, the broadcast channel may include a satellite channel, a terrestrial channel, and the like.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 611 may be stored in the memory 660.

The mobile communication module 613 transmits and receives a radio signal to at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data according to a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The wireless Internet module 615 refers to a module for wireless Internet access, and the wireless Internet module 615 can be embedded in the mobile terminal 600 or externally. For example, the wireless Internet module 615 may perform WiFi based wireless communication or WiFi Direct based wireless communication.

The NFC module 617 can perform near field communication. The NFC module 617 can receive data from the electronic device or transmit data to the electronic device when the electronic device is accessed within a predetermined distance, i.e., tagging, with the NFC tag or the NFC module.

In addition, Bluetooth, RFID (radio frequency identification), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

The Global Positioning System (GPS) module 619 may receive position information from a plurality of GPS satellites.

The A / V (Audio / Video) input unit 620 is for inputting an audio signal or a video signal, and may include a camera 621 and a microphone 623.

The user input unit 630 generates key input data that the user inputs to control the operation of the terminal. The user input unit 630 may include a key pad, a dome switch, and a touch pad (static / static). Particularly, when the touch pad has a mutual layer structure with the display 651, it can be called a touch screen.

The sensing unit 640 senses the current state of the mobile terminal 600 such as the open / close state of the mobile terminal 600, the position of the mobile terminal 600, A sensing signal can be generated.

The sensing unit 640 may include a sensing sensor 641, a pressure sensor 643, a motion sensor 645, and the like. The motion sensor 645 can detect the movement or the position of the mobile terminal 600 using an acceleration sensor, a gyro sensor, a gravity sensor, or the like. In particular, the gyro sensor is a sensor for measuring the angular velocity, and it can sense the direction (angle) of rotation about the reference direction.

The output unit 650 may include a display 651, an acoustic output module 653, an alarm unit 655, and a haptic module 657, and the like.

The display 651 displays and outputs information processed by the mobile terminal 600.

Meanwhile, as described above, when the display 651 and the touch pad have a mutual layer structure to constitute a touch screen, the display 651 may be used as an input device capable of inputting information by the user's touch in addition to the output device .

The audio output module 653 outputs audio data received from the wireless communication unit 610 or stored in the memory 660. [ The sound output module 653 may include a speaker, a buzzer, and the like.

The alarm unit 655 outputs a signal for notifying the occurrence of an event of the mobile terminal 600. For example, it is possible to output a signal in a vibration mode. .

The haptic module 657 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 657 is a vibration effect.

The memory 660 may store a program for processing and controlling the control unit 680 and may store a function for temporarily storing input or output data (e.g., a phone book, a message, a still image, .

The interface unit 670 serves as an interface with all the external devices connected to the mobile terminal 600. The interface unit 670 receives data from the external device or receives power from the external device and transmits the data to the respective components in the mobile terminal 600 so that data in the mobile terminal 600 can be transmitted to the external device .

The controller 680 typically controls the operations of the respective units to control the overall operation of the mobile terminal 600. For example, perform related controls and processing for voice calls, data communications, video calls, and the like. In addition, the control unit 680 may include a multimedia playback module 681 for multimedia playback. The multimedia playback module 681 may be configured in hardware in the controller 680 or may be configured in software separately from the controller 680. [

The power supply unit 690 supplies external power and internal power under the control of the controller 680 and supplies power necessary for operation of the respective components.

Meanwhile, a block diagram of the mobile terminal 600 shown in FIG. 8 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the mobile terminal 600 actually implemented. That is, two or more constituent elements may be combined into one constituent element, or one constituent element may be constituted by two or more constituent elements, if necessary. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and apparatuses do not limit the scope of the present invention.

FIG. 9 is a flowchart illustrating an operation method of an energy storage apparatus according to an embodiment of the present invention, FIG. 10 is a flowchart illustrating an operation method of a power management apparatus according to an embodiment of the present invention, FIGS. 12 to 17 Is a diagram referred to in the description of the operation method of Fig. 9 or Fig.

Referring to the drawing, the energy storage device 100 determines whether the power is turned on (S910). If so, the energy storage device 100 transmits a pairing request signal as a power-on signal to the power management device 500 (S920). Then, the energy storage device 100 receives the pairing response signal from the power management device 500 (S930).

12A illustrates a state in which the power plug 112 of the energy storage device 100 is not connected to the power socket 60. FIG.

FIG. 12B illustrates that the power plug 112 of the energy storage device 100 is connected to the power socket 60. FIG.

Accordingly, the energy storage device 100 receives the AC power supplied from the internal power grid 50 through the connection part 130, and can convert it into DC power at the power conversion part 140. [

The converted DC power can be supplied to each module of the energy storage device 100 as an operation power source. Accordingly, the communication module 150 determines that the power is turned on when the operating power is input, and transmits a pairing request signal (not shown) indicating that the operation is turned on to the power management apparatus 500 via the communication module 150 Can be transmitted.

Accordingly, the power management apparatus 500 determines whether to receive the pairing request signal (S1020), and if so, transmits a pairing response signal to the energy storage apparatus 100 (S1030).

The communication module 530 of the power management device 500 delivers a pairing request signal received from the energy storage device 100 to the processor 520. The processor 520 of the power management device 500, In response to the pairing request signal, generates a pairing response signal including radio channel assignment information to the energy storage device 100 and controls the transmission of the pairing response signal to the energy storage device 100 through the communication module 530. [

12B shows a state in which the power supply plug 112 of the energy storage device 100 is connected to the power socket 60 and the pairing request signal Sp1 is supplied from the energy storage device 100 to the power management device 500 And the pairing response signal Sp2 is transmitted from the power management unit 500 to the energy storage device 100. [

11, step S1110 corresponds to step 910 of FIG. 9, step 1120 of FIG. 11 corresponds to step 920 of FIG. 9, step 1020 of FIG. Step S1130 of FIG. 11 corresponds to step S930 of FIG. 9 and step 1030 of FIG. 10 corresponds to step S1020.

Next, the power management apparatus 500 receives the solar power information from the junction box 300 (S1031). Then, the power management apparatus 500 receives the load power information consumed by the internal power network and the commercial power information supplied to the internal power network from the power distribution unit 820 (S1034). Then, the power management apparatus 500 receives power information stored in the energy storage device, that is, energy storage amount information (S1036). Based on at least one of the load power information, the usage power information, the solar power information, and the energy storage amount information, the power management device 500 can acquire the power information that can be stored in the energy storage device or the power information (S1038). Then, a charge command or a discharge command is transmitted to the energy storage device based on the calculated storable power information or output power information (S1040).

The communication module 530 of the power management apparatus 500 transmits the solar power information generated by the solar module 200 and converted by the junction box 300 from the junction box 300 via the Zigbee communication, .

On the other hand, the communication module 530 of the power management apparatus 500 receives the commercial power information and the load power information from the power distribution unit 820 via the Zigbee communication. .

The load power information may be transmitted from the power distributor 820. [ For example, when the power divider 820 includes a power meter that calculates the amount of power consumed in the internal power grid 50, it can calculate the load power information. The load power information calculated by the power distribution unit 820 can be transmitted to the power management apparatus 500. [

On the other hand, the communication module 530 of the power management apparatus 500 receives, from the energy storage devices 100a, 100b, ..., 100e, via the Zigbee communication. Additional storable power information, i.e., energy storage amount information stored in each energy, and the like.

12C illustrates that the energy storage amount information IPes is transmitted from the energy storage device 100 to the power management device 500. [ 12C shows an example in which the solar power information IPso generated in the solar module 200 and converted by the junction box 300 is transmitted from the junction box 300 to the power management apparatus 500 do. 12C is a graph showing the relationship between the commercial power information IPco supplied to the internal power grid 50 and the load power information IP _L consumed in each load from the power distributing section 820 to the power management apparatus 500 Lt; / RTI >

Accordingly, the processor 520 of the power management apparatus 500 receives at least one of the received solar photovoltaic power information IPso, commercial power information IPco, load power information IP _L , and energy storage amount information IPes Determines whether each of the energy storage devices 100a, 100b, ... 100e is to operate in the charge mode or the discharge mode, respectively.

For example, the processor 520 of the power management apparatus 500 may determine that solar power is to be supplied to the internal power grid 50 when receiving solar power information of a predetermined value or more from the junction box 300 , When the solar power is supplied to the internal power grid 50, each of the energy storage devices 100a, 100b, ..., 100e may be determined to operate in the charge mode.

As another example, the processor 520 of the power management device 500 may be configured to supply power to the internal power grid 50 when the energy storage devices 100a, 100b, ..., It may be determined that optical power is supplied.

The processor 520 of the power management apparatus 500 can calculate the power information to be stored in the corresponding storage devices when determining the charging mode, The power information to be output to the power grid 50 can be calculated.

For example, all of the energy storage devices 100a, 100b, ..., 100e may be in a charge mode or a discharge mode, and in addition, some energy storage devices may be charge mode and other energy storage devices may be discharge mode It is also possible.

Here, the power information to be stored may include at least one of a charge start command, a charge time information, or a charge stop command.

On the other hand, the output power information may include at least one of a discharge start command, a discharge time information, and a discharge stop command.

Meanwhile, the communication module 530 of the power management apparatus 500 can transmit the charging command to the corresponding energy storage devices in the charging mode. Alternatively, the communication module 530 of the power management device 500 may, when in the discharge mode, send a discharge command to the corresponding energy storage devices.

11, step S1131 corresponds to step 1031 of FIG. 10, step 1134 of FIG. 11 corresponds to step 1034 of FIG. 10, 11, step S1136 corresponds to step 1036 of FIG. 10, step 1138 corresponds to step 1038 of FIG. 10, step 1140 of FIG. (S1140) corresponds to step 940 (S940) of FIG. 9 and step 1040 (S1040) of FIG.

Next, the communication module 150 of the energy storage device 100 determines whether a charge command is received from the power management device 500 (S940). In step S950, the energy storage device 100 receives AC power from the internal power network based on the received charging command, converts the AC power into DC power, and stores the AC power in the battery pack 160 (S950).

12D illustrates that the charge command IPps is transferred from the power management device 500 to the energy storage device 100. [

The communication module 150 of the energy storage device 100 receives the AC power of the internal power network 50 through the connection unit 130 when receiving the charge command IPps from the power management apparatus 500, It is possible to control the power conversion unit 140 to convert it to DC power. Then, the converted DC power can be controlled to be stored in the battery pack 160.

Thus, the solar power supplied to the internal power grid 50 can be simply stored in the battery pack 160.

12E illustrates that power (Pps) corresponding to the charge command IPps, that is, AC power, is supplied from the internal power grid 50 to the energy storage device 100. [

Meanwhile, step S1150 of FIG. 11 corresponds to step 950 of FIG. 9 (S950).

Next, the communication module 150 of the energy storage device 100 determines whether a charge stop command is received from the power management device 500 (S953). If so, the energy storage device 100 stops the input of AC power from the internal power network based on the received charge stop command (S956).

Thus, the solar power supplied to the internal power grid 50 can be stored in the battery pack 160 without being stored anymore.

Step 1153 and step 1156 in FIG. 11 correspond to step 953 in FIG. 9 and step 956 in FIG. 9, respectively.

Next, the communication module 150 of the energy storage device 100 determines whether a discharge command is received from the power management device 500 (S960). If so, the energy storage device 100 converts the DC power stored in the battery pack into AC power based on the received discharge command, and outputs the converted DC power to the internal power network (S970).

12F illustrates that the discharge command IPpo is transmitted from the power management apparatus 500 to the energy storage device 100. [

When receiving the discharge command IPpo from the power management device 500, the communication module 150 of the energy storage device 100 outputs a power command (140). Then, the communication module 150 can control the power conversion section 140 to convert the DC power into the AC power. Accordingly, the DC power stored in the battery pack 160 can be simply converted and supplied to the internal power grid 50.

12G illustrates that the power Ppo corresponding to the discharge command IPpo, that is, AC power, is supplied from the energy storage device 100 to the internal power grid 50. [

Next, the communication module 150 of the energy storage device 100 determines whether a discharge stop command is received from the power management device 500 (S973). If so, the energy storage device 100 stops outputting the AC power to the internal power network based on the received discharge stop command (S976).

Accordingly, the power stored in the battery pack 160 is no longer supplied to the internal power grid 50.

As described above, the power stored in the energy storage device 100 is supplied to the internal power grid 50, so that the consumption of the commercial AC power can be reduced. That is, by storing renewable energy such as solar power from a solar module in an energy storage device and supplying it to the internal power network, energy consumption can be efficiently used. In addition, since the consumption of the commercial AC power is reduced, the commercial power consumption cost is reduced.

On the other hand, the power management apparatus 500 can detect and add information to and from the energy storage device whenever the energy storage device is added or reduced.

As described above, when the power of the additional energy storage device is turned on, pairing or the like may be performed to newly store information of the energy storage device and allocate a wireless channel for wireless data communication.

On the contrary, when the power of the existing energy storage device is turned off, the wireless channel used is not used, so that the energy storage device is turned off and information of the energy storage device that is powered off can be updated have.

On the other hand, based on the photovoltaic power information generated by the solar module 200, commercial power information supplied to the internal power network, load power information consumed in the internal power network, etc., And may be controlled so that the solar power is used to the maximum. That is, the photovoltaic power is supplied to the power distribution unit 820 so as to supply the photovoltaic power to the internal power grid 50, and the commercial power is supplied only to the internal power grid 50 to provide the corresponding information to the power distribution unit 820. [

Meanwhile, the power management apparatus 500 may provide a smart grid service. That is, when the cost of the commercial power is differentiated by time zone, it is possible to control the commercial power to be supplied to the internal power network 50 at a time when the commercial power is inexpensive. Then, the commercial power supplied to the internal power grid 50 may be controlled to be stored in each energy storage device.

As another example, the power management apparatus 500 can control the power stored in the energy storage device to be supplied to the internal power grid 50 at a time when the commercial power is high.

On the other hand, the commercial power price information is received from the external server 570 to the power management apparatus 500 or received via the power exchange 800 or the power distribution unit 820 to the power management apparatus 500 , ≪ / RTI >

Next, Figs. 13A to 13E correspond to Figs. 12C to 12G, and the difference therebetween is that the power management apparatus 500 receives or transmits information for a plurality of energy storage devices .

That is, FIG. 13A illustrates that the energy storage amount information IPes1, IPes2, ..., IPes5 is transmitted from the energy storage devices 100a, 100b, ..., 100e to the power management device 500. FIG. 13A illustrates that the photovoltaic power information IPso generated in the solar module 200 is transmitted from the junction box 300 to the power management unit 500 and is supplied to the internal power grid 50 The commercial power information IPco and the load power information IP _L consumed in each load are transmitted from the power distribution unit 820 to the power management apparatus 500. [

13B illustrates that charge commands IPps1, IPps2, ... IPps5 are transmitted from the power management apparatus 500 to the respective energy storage devices 100a, 100b, ..., 100e.

13C shows an example in which power (Pps1, Pps2, ..., Pps5), that is, AC power, corresponding to charge commands IPps1, IPps2, ... IPps5, 100a, 100b, ..., 100e.

Fig. 13D illustrates that the discharge commands IPpo1, IPpo2, ..., IPpo5 are transmitted from the power management apparatus 500 to the respective energy storage devices 100a, 100b, ..., 100e.

FIG. 13E is a graph showing the relationship among the power Ppo1, Ppo2, ..., Ppo5 corresponding to the discharge commands IPpo1, IPpo2, ..., IPpo5, 0.0 > 100e, < / RTI > to the internal power grid 50. FIG.

On the other hand, in addition to all the energy storage devices 100a, 100b, ..., 100e operating in the charge mode as shown in FIG. 13C or all of the discharge modes as shown in FIG. 13E, It is also possible to operate in the charging mode.

13F shows that the charge command IPps1 and the discharge commands IPpo2 to IPpo5 are transmitted from the power management apparatus 500 to the energy storage devices 100a, 100b, ..., 100e For example.

13G illustrates that the power Pps1 corresponding to the charging instruction IPps1, that is, the AC power, is supplied from the internal power grid 50 to the first energy storage device 100a. Then, the power Ppo2, ..., Ppo5 corresponding to the discharge commands IPpo2, ..., IPpo5, that is, the AC power is supplied from the second to fifth energy storage devices 100b, ..., And the internal power grid 50, as shown in Fig.

Meanwhile, the power supply system 10 according to the embodiment of the present invention can supply a part of the stored power stored in the energy storage device 100 to the power exchange 800 through the power distribution unit 820 .

To this end, the processor 520 of the power management apparatus 500 determines whether or not the load power information IP _L , the commercial power information IPco, the solar power information IPso, The power to be output to the outside of the internal power grid 50 can be calculated based on at least one. That is, the external output power to be transmitted to the power exchange 800 can be calculated.

The communication module 530 of the power management apparatus 500 can transmit the calculated external output power information to the power distribution section 820 that distributes and supplies the commercial power to the internal power grid 50. [

Accordingly, the energy storage device 100 can supply AC power to the internal power grid 50 as a discharge mode, and the power distributor 820 can supply a part of the AC power supplied to the internal power grid 50 , And output to the outside, in particular, the power exchange 800.

14A illustrates that the external output power information IPdi is transmitted to the power distribution unit 820. [

14B illustrates that the external output power Pdi corresponding to the external output power information IPdi, that is, the AC power, is transmitted from the power distributor 820 to the power exchange 800. [ Thus, the power can be efficiently used.

A plurality of energy storage devices 100a, 100b, ..., 100e under the power supply system 10 and a plurality of loads 700a, 700b, ..., 700e, according to an embodiment of the present invention, Alternatively, it is also possible that a plurality of loads are allocated to one energy storage device and corresponded thereto. In particular, it is also possible for the energy storage device to correspond to its adjacent loads.

For example, one energy storage device may supply power stored in the energy storage device to the internal power network 50, depending on the power consumption in the plurality of loads, and the corresponding loads may be stored in the corresponding energy storage device It is also possible to consume the supplied AC power directly. That is, under the power supply system 10, the energy storage device operates in a discharge mode locally at a point where power consumption is required, so that power can be efficiently managed.

To this end, the power management apparatus 500 may store position information of each energy storage device, position information of each load, power consumption information of each load, and the like.

The position information of the energy storage device can be calculated according to the intensity of the signal, etc. during the pairing of the energy storage device. The position information of the loads can also be calculated according to the intensity of the signal and the like when the load and the power management apparatus 500 are paired with each other.

16 and 17 are views referred to explain a power monitoring mode and a remote control mode through a mobile terminal.

First, FIG. 16 illustrates a power monitoring mode through the mobile terminal 600.

The mobile terminal 600 may enter a power monitoring mode for the internal power network when a predetermined menu of the mobile terminal 600 is executed or a predetermined application is executed.

16 (a) illustrates that the power monitoring screen 1610 is displayed when the power monitoring mode is entered. The power monitoring screen 1610 is a screen for monitoring the power to the internal power grid 50. In the drawing, the screen includes a full mode item 1615 and a separate mode item 1618. [

The wireless communication unit 610 of the mobile terminal 600 can transmit a power monitoring request to the power management apparatus 500 via the internal network or the external network 560 when the overall mode item 1615 is selected . In particular, a power monitoring request for the entire internal power grid 50 can be transmitted.

Accordingly, the power management apparatus 500 transmits monitoring information to the entire internal power network 50, and the wireless communication unit 610 of the mobile terminal 600 receives the monitoring information and transmits it to the control unit 680. Then, the control unit 680 can control the display to display the monitoring information under all modes.

16B illustrates an overall mode screen 1620 and specifically illustrates that icons representing energy storage amounts for the energy storage devices ESS1, ESS2, ESS3, and ESS4 are displayed in the home interior plan view 1625 For example. Thus, the user can intuitively confirm the energy storage amount of the energy storage devices located in the house.

On the other hand, unlike the drawing, it is also possible that an icon representing the energy consumption for each load is further displayed.

On the other hand, when the individual mode item 1618 is selected in FIG. 16A, the individual mode screen 1630 can be displayed on the display of the mobile terminal 600, as shown in FIG. 16C. In the figure, four are shown as the number of energy storage devices electrically connected in the internal power network 50.

On the other hand, the individual mode screen 1630 of FIG. 16 (c) includes only energy storage items, but may further include items for each load.

On the other hand, when the first energy storage device item 1632 is selected in the individual mode screen 1630 of FIG. 16 (c), the wireless communication unit 610 of the mobile terminal 600 is connected to the internal network or the external network 560 to the power management device 500 to send a power monitoring request to the first energy storage device. That is, the energy storage information stored in the first energy storage device can be transmitted.

Accordingly, the power management apparatus 500 transmits energy storage amount information stored in the first energy storage apparatus as monitoring information, and the wireless communication unit 610 of the mobile terminal 600 receives the energy storage amount information, Lt; / RTI > Then, the control unit 680 can control to display the corresponding monitoring information through the display.

FIG. 16 (d) illustrates an individual mode screen 1640, and specifically illustrates that an object 1642 representing energy storage information stored in the first energy storage device is displayed.

Thereby, the user can intuitively confirm the energy storage amount of the first energy storage device located in the house.

Next, FIG. 17 illustrates a remote control mode through the mobile terminal.

The mobile terminal 600 may enter a remote control mode for the internal power network when a predetermined menu of the mobile terminal 600 is executed or a predetermined application is executed.

17 (a) illustrates that the remote control screen 1710 is displayed when the remote control mode is entered. The remote control screen 1710 is a screen capable of remotely controlling the power management apparatus 500 and the like. In the drawing, a screen including the entire mode item 1715 and the individual mode item 1718 is illustrated.

When the all-mode item 1715 is selected, the full-mode screen 1720 can be displayed as shown in Fig. 17 (b). The full mode screen 1720 may have a charging item 1725 that can charge all of the plurality of energy storage devices electrically connected to the internal power network, and a discharge item 1728 that can discharge all.

For example, when the " Yes " item of the charging item 1725 is selected, the wireless communication unit 610 of the mobile terminal 600 is connected to the power management apparatus 500 via the internal network or external network 560 , And to transmit a remote control signal to cause charging for all energy storage devices.

On the other hand, when the individual mode item 1718 is selected in FIG. 17A, the individual mode screen 1730 can be displayed on the display of the mobile terminal 600, as shown in FIG. 17C. In the figure, four are shown as the number of energy storage devices electrically connected in the internal power network 50.

On the other hand, the individual mode screen 1730 of FIG. 17 (c) includes only energy storage items, but may additionally include each load item.

On the other hand, when the first energy storage device item 1732 is selected in the individual mode screen 1730 of FIG. 17 (c), the remote control screen for the first energy storage device 1740) may be displayed. The remote control screen 1740 may have a charging item 1745 capable of charging the first energy storage ESS1 and a discharge item 1748 capable of discharging.

For example, when the " Yes " item of the charging item 1745 is selected, the wireless communication unit 610 of the mobile terminal 600 is connected to the power management apparatus 500 via the internal network or external network 560 And transmit a remote control signal to cause the first energy storage device to perform charging.

Thereby, the user can easily remotely control the power management apparatus 500 or the energy storage apparatus.

The energy storage device and the power management device according to the present invention are not limited to the configuration and the method of the embodiments described above but the embodiments can be applied to all or some of the embodiments May be selectively combined.

Meanwhile, the method of operating the energy storage device or the method of operating the power management device of the present invention can be implemented as a code that can be read by a processor on a processor-readable recording medium provided in the energy storage device or the power management device. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium that can be read by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet . In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims (7)

In an energy storage device,
At least one battery pack;
A communication module for transmitting power-on information or energy storage amount information to the power management device and receiving a charge command or a discharge command from the power management device;
A connection unit for receiving the AC power supplied to the internal power network through the solar module based on the charging command or outputting the AC power to the internal power network based on the discharge command; And
When receiving a charge command from the power management apparatus, converting the AC power from the internal power network into DC power or receiving the discharge command from the power management apparatus based on the charge command, And a power conversion unit converting the DC power stored in the battery pack into an AC power,
The communication module includes:
Wherein the power management apparatus transmits a pairing request signal to the power management apparatus when the power is on, completes the pairing based on the pairing response signal received from the power management apparatus, Performing wireless data communication with the power management apparatus according to a wireless communication scheme,
Wherein the power management apparatus and the plurality of loads perform wireless communication according to a second wireless communication method different from the first wireless communication method,
And outputs an AC power to the internal power network according to a discharge command received from the power management apparatus when power supply to the first load closest to the energy storage device is required among the plurality of loads, Device. The method according to claim 1,
Wherein the power conversion unit comprises:
And a bidirectional converter for receiving an AC power from the internal power network and converting the AC power into DC power or converting the DC power stored in the battery pack into an AC power based on the discharge command. The method according to claim 1,
Wherein the power conversion unit comprises:
Wherein when the commercial AC power supply to the internal power network is interrupted, the DC power stored in the battery pack is converted into an AC power,
Wherein the connection unit outputs the converted AC power to the internal power network. Receiving the photovoltaic power information generated in the photovoltaic module, receiving commercial power information supplied to the internal power network, receiving load power information consumed in the internal power network, and receiving energy storage amount information stored in the energy storage device Communication module; And
Generating a charge command for charging the at least one energy storage device with the AC power of the internal power network based on at least one of the load power information, the commercial power information, the solar power information, and the energy storage information, And a processor for generating a discharge command for discharging AC power from the device to the internal power network,
Wherein the communication module transmits the generated charge command or the discharge command to the energy storage device,
The communication module includes:
Receiving a pairing request signal from a powered first energy storage device, transmitting a pairing response signal to the first energy storage device, and transmitting a pairing response signal to the first energy storage device according to a first wireless communication scheme , Performs wireless data communication,
Wherein the power management apparatus and the plurality of loads perform wireless communication according to a second wireless communication method different from the first wireless communication method,
The processor comprising:
Calculating position information of the first energy storage device in accordance with the intensity of the radio signal when the radio signal is paired with the first energy storage device and calculating position information of the load according to the intensity of the radio signal received from the load And to store the position information of the first energy storage device and the position information of the load,
And transmits a discharge command to the energy storage device when power supply to the first load that is closest to the first energy storage device among the plurality of loads is required. 5. The method of claim 4,
The processor comprising:
And generates a charging command for charging the AC power of the internal power network to at least one energy storage device when the solar power is supplied to the internal power network. 6. The method of claim 5,
The processor comprising:
Wherein the monitoring means monitors power information for at least one of a load electrically connected to the internal power network or the energy storage device electrically connected to the internal power network. 6. The method of claim 5,
The processor comprising:
And controls to transmit monitoring information on power of the internal power network to the outside via the communication module when receiving a power monitoring request for the internal power network.

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