JP2012191700A - Storage battery utilization system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively utilize a private generating power supply apparatus 18, nighttime power and a storage battery 20.SOLUTION: A storage battery utilization system includes: base pattern data selection means 40 for selectively reading out base pattern data 58 suitable for expectation of a power consumption of a target day; schedule data acquisition means 42 for acquiring a building user's schedule data 60; external information acquisition means 44 for acquiring information providing external factors in varying the generated output of the private generating power supply apparatus 18; expected power consumption calculation means 46 for calculating a daily total power consumption of the target day; expected generated output calculation means 48 for calculating expected generated outputs of the target and preceding days; appropriate power charge calculation means 50 for calculating an appropriate power charge of the storage battery 20 of the preceding day; and storage battery charge control means 52 for charging the storage battery 20 with power to the appropriate power charge.

Description

  The present invention relates to a storage battery utilization system that effectively uses a private power generation power supply, nighttime power, and a storage battery.

Solar power generators and wind power generators have been widely put into practical use as power sources using renewable energy. In addition, fuel cells using clean energy have been put into practical use as next-generation private power generation power supply devices.
The electric power supplied by these private power generation devices is consumed by the home appliances, and the surplus is stored in the storage battery. Furthermore, a part is sent out to the transmission / distribution electric wire side for electric power sale (patent document 1).

JP 2010-88276 A

The known prior art has the following problems to be solved.
When private power generation devices are widely spread, the reverse power flow to the transmission / distribution line may exceed the allowable amount of the electric power equipment, leading to a reduction in power quality. In order to prevent this, a power conditioner provided on the private power generation power supply device side automatically blocks the reverse power flow. In this case, surplus power of the private power generation power supply is wasted. It is desirable to use the surplus power of the private power generation power supply device as much as possible for charging the storage battery and to use the power at night. However, if the power usage of the next day is particularly large, or if the power generation capacity of the private power generation device decreases due to the weather, daytime power must be purchased. In preparation for this, it is also conceivable to charge the storage battery using nighttime power. However, if the storage battery is fully charged, it cannot be used for charging surplus power the next day. This can be solved by sufficiently increasing the capacity of the storage battery, but this increases the equipment cost.
In order to solve the above problems, an object of the present invention is to provide a storage battery utilization system that effectively uses a private power generation device, nighttime power, and a storage battery.

The following configurations are means for solving the above-described problems.
<Configuration 1>
A storage device that stores a plurality of types of base pattern data indicating the time transition of the daily power consumption obtained from the standard value or past results of the corresponding building, and the power consumption of the target day from this storage device Base pattern data selection means for selecting and reading out the base pattern data suitable for the amount prediction, schedule data acquisition means for acquiring schedule data indicating whether the user of the building is at least going out or at home, and private power generation Based on the base pattern data, the schedule data, and the external information, external power acquisition means for acquiring information that is an external factor that fluctuates the power generation amount of the power supply device, and the daily power of the target day Calculate the time transition of consumption and aggregate the calculation results to calculate the total power consumption for the day. A predicted power generation amount calculating means; an expected power generation amount calculating means for calculating an expected power generation amount for the target of the private power generation power supply device based on the external information; and a target date determined by the calculation. From the expected power consumption of the same day and the expected power generation on the same day, the calculation is made to the appropriate charge energy calculation means for calculating the appropriate charge energy of the storage battery at the end of the previous day, and the storage battery that supplies power to the in-house wiring of the building A storage battery utilization system comprising storage battery charge control means for controlling charging so that the power of the appropriate charging power amount obtained by the above is charged during the previous day.

<Configuration 2>
In the storage battery utilization system according to Configuration 1, in the storage device, the base pattern data is stored as different data according to daily fluctuation, day of the week fluctuation, seasonal fluctuation, and specific day fluctuation, and the base pattern data selecting means Is a storage battery utilization system characterized by selecting base pattern data of a target day with reference to a calendar.

<Configuration 3>
The storage battery utilization system according to Configuration 1 or 2, wherein the schedule data is acquired from an arbitrary terminal device used by a user through a network.

<Configuration 4>
In the storage battery utilization system according to any one of the first to third aspects, performance data recording means for storing performance data indicating time transition of past power consumption in a storage device together with data serving as a variation factor; A storage battery utilization system comprising base pattern data replacement means for replacing the base pattern data with recent performance data.

<Configuration 5>
5. The storage battery utilization system according to any one of configurations 1 to 4, further comprising a display that displays the calculated appropriate charge power amount and the chargeable power amount of the storage battery.

<Configuration 6>
The computer stores a plurality of types of base pattern data indicating the time transition of the daily power consumption obtained from standard values or past results of the corresponding building, and the target date from this storage device. Base pattern data selection means for selecting and reading out the base pattern data suitable for the prediction of power consumption of the building, and schedule data acquisition means for acquiring schedule data indicating whether the user of the building is at least going out or at home; The external information acquisition means for acquiring information that is an external factor that fluctuates the power generation amount of the private power generation power supply device through the network, the base pattern data, the schedule data, and the external information. Calculate the time transition of power consumption of the day and total the calculation results to calculate the total daily consumption of the day. An expected power consumption calculating means for calculating the power, an expected power generation calculating means for calculating the expected power generation on the day and the previous day that are the targets of the private power generation power source based on the external information, and In addition, from the estimated power consumption of the target day and the predicted power generation amount on the same day, the appropriate charge power amount calculation means for calculating the appropriate charge power amount of the storage battery of the previous day, and the storage battery that supplies power to the in-house wiring of the building And a storage battery utilization system control program that functions as storage battery charge control means for controlling charging so that the power of the appropriate amount of charging power obtained by the calculation is charged during the previous day.

<Configuration 7>
A computer-readable recording medium on which the storage battery utilization system control program according to Configuration 6 is recorded.

<Effect of Configuration 1>
Based on the power consumption base pattern data, the user's schedule data, and external information obtained from past results, the total daily power consumption consumed in the user's building is accurately calculated. Furthermore, the expected power generation amount of the private power generation power supply is calculated. Thereby, the charge amount of the storage battery can be optimized and controlled so that the power of the cheapest private power generation power supply device is preferentially used for charging the storage battery.
<Effect of Configuration 2>
If various types of base pattern data are prepared, highly accurate prediction calculation can be performed.
<Effect of Configuration 3>
Instead of requesting input of schedule data only for charging control of the storage battery, it is preferable to acquire data for schedule management normally used by the user through the network.
<Effect of Configuration 4>
If the base pattern data is replaced based on the actual data, the base pattern data can be optimized sequentially.
<Effect of Configuration 5>
When the amount of power that can be charged by the storage battery is small with respect to the calculated appropriate amount of charging power, the most economical power use is not possible. If both are displayed on the display, the user can make an expansion plan for the storage battery.

It is a block diagram which shows the storage battery utilization system of Example 1. FIG. It is explanatory drawing which shows an example of base pattern data. It is an acquisition method explanatory view of schedule data. It is explanatory drawing of the in-home electric power consumption pattern data according to an individual. It is explanatory drawing of the acquisition method of external information. It is explanatory drawing which shows the relationship between estimated electric power consumption and appropriate charge electric energy. It is explanatory drawing of replacement | exchange operation | movement of base pattern data. It is a flowchart which shows the charge control operation example of a storage battery.

  Hereinafter, embodiments of the present invention will be described in detail for each example.

FIG. 1 is a block diagram illustrating a storage battery utilization system 10 according to the first embodiment.
The storage battery utilization system 10 shown in the figure is installed in a building such as a general household. In this building, commercial power is supplied from the transmission / distribution line 12 to the home wiring 16 via the distribution board 14. In addition, a private power generation power supply device 18 is provided in this building. Furthermore, a storage battery 20 for storing electric power used inside the building is provided.

  In order to charge the storage battery 20 with electric power, a first charging circuit 22 and a second charging circuit 24 are provided. A discharge circuit 26 is provided to supply power from the storage battery 20 to the home wiring side. First, a specific configuration of each part will be described for the above part.

[In-house power generator]
For the charging of the storage battery, the electric power supplied from the private power generation device 18 and the power transmission / distribution line 12 is used. The private power generation device 18 is a solar power generation device that converts solar energy into electric energy and outputs it, a wind power generation device that converts wind energy into electric energy and outputs it, or a fuel that generates electricity using hydrogen or the like as fuel. Batteries are well known. In addition to this, there is also known a power supply device that converts thermal energy and hydraulic wave power into electric energy and outputs the electric energy. All of these can be used as private power generators in the system of the present invention.

[Transmission and distribution line and home wiring]
The transmission and distribution line 12 is a line for supplying commercial power from an electric power company. The in-home wiring 16 is connected to the transmission / distribution electric line 12 via the distribution board 14. The in-house wiring 16 is a power distribution facility separated by a power receiving facility such as the power transmission / distribution line 12 and the distribution board 14, and is a facility for residents such as a house or a condominium to use a commercial power source. The distribution board 14 is a device having a built-in branch circuit, breaker, or the like for in-house power distribution.

[Storage battery]
The storage battery 20 is a secondary battery having a function of storing and discharging electric power by charging and discharging. The storage battery 20 is used for storing electric power supplied from the private power generation power supply device 18. Since the electric power output from the private power generation device 18 is unstable, it is stored in the storage battery 20 before use. Moreover, the electric power output from the private power generation device 18 is stored. It is also used for accumulating electric power supplied from the transmission / distribution electric line 12. It mainly stores cheap nighttime electricity.

[Charge / discharge circuit]
The following circuits are provided for charging and discharging the storage battery 20.
The first charging circuit 22 is a circuit that receives the electric power of the private power generation power supply 18 and outputs the requested DC power to charge the storage battery 20. The second charging circuit 24 is a circuit that accepts the power of the home wiring 16 and outputs the requested DC power to charge the storage battery. The discharge circuit 26 is a circuit that receives the power of the storage battery 20, outputs the requested AC power, and supplies it to the home wiring 16.

  The first charging circuit 22 includes, for example, a DC-DC converter that converts a DC voltage output from the photovoltaic power generator into a voltage suitable for charging the storage battery 20, a current control circuit that controls the charging current, and a charging time. It has a timer to control. The second charging circuit 24 is connected to, for example, an AC 100 volt home wiring 16 and converted to a DC voltage suitable for charging the storage battery 20, a current control circuit for controlling the charging current, and a charging time. A timer for controlling the operation is provided. The discharge circuit 26 includes a DC-AC converter that connects to the storage battery 20 and outputs an AC voltage for the home wiring 16, an overcurrent protection circuit, and the like.

[Charge / discharge control]
The system shown in FIG. 1 may be controlled by, for example, a HEMS (Home Energy Management Service) server. The HEMS server closely monitors the energy supply amount and energy consumption amount inside a building such as a general house and displays the result on the display 36 or controls the operation of the air conditioner to control the temperature appropriately. It has a function to do. It is preferable to provide a charge / discharge control function of the storage battery 20 to the HEMS server.

  The HEMS server shown in FIG. 1 is a known computer, and includes an arithmetic processing device 30 and a storage device 32. An input device 34 for data input and a display 36 for displaying the calculation processing result are provided. Further, the HEMS server is connected to the network 38 and configured to acquire external information.

  Each means shown in the arithmetic processing unit 30 is a functional block that functions by a computer program. The storage device 32 stores a plurality of types of base pattern data 58 indicating the time transition of the daily power consumption as illustrated in FIG. As the base pattern data 58, an arbitrary number of standard values that can be used in any home are set as initial values and acquired from past results of the corresponding building.

  The base pattern data selection means 40 has a function of selecting and reading out the base pattern data 58 suitable for the prediction of the power consumption of the target day from the storage device 32. The schedule data acquisition means 42 has a function of acquiring schedule data 60 indicating whether the user of the building is at least going out or at home. The schedule data 60 is input using the input device 34, for example. The contents will be described later in detail with reference to FIG.

  The external information acquisition unit 44 has a function of acquiring, via the network 38, information that becomes an external factor that fluctuates the power generation amount of the private power generation power supply device 18. For example, when the private power generation device 18 is a solar power generation device or a wind power generation device, weather information becomes important information. The type of data extracted from the weather information may differ depending on the type of the private power generation power supply device 18.

  Based on the base pattern data 58, the schedule data 60, and the external information, the predicted power consumption calculating means 46 calculates the time transition of the power consumption of the day on the target day and totals the calculation results. , Has the function of calculating the total power consumption of the day. The predicted power generation amount calculation means 48 has a function of calculating the predicted power generation amount on the day and the previous day that are the targets of the private power generation power supply device 18 based on the external information.

  The appropriate charging power amount calculation means 50 has a function of calculating the appropriate charging power amount of the storage battery 20 of the previous day from the predicted power consumption amount of the target day and the predicted power generation amount on the same day, which are obtained by calculation. The storage battery charging / discharging control means 52 has a function of controlling charging so that the storage battery 20 that supplies power to the in-house wiring 16 of the building is charged with power of an appropriate amount of charging power obtained by calculation within the previous day.

[Base pattern data]
FIG. 2 is an explanatory diagram showing an example of base pattern data.
In the figure, the horizontal axis indicates the passage of time in one day, and the vertical axis indicates the power consumption per unit time. What is stored in the computer is a numerical list of power consumption per unit time. The power consumption pattern of a building has a fixed characteristic to some extent depending on the construction site of the building, the family structure of the user, the type of equipment used constantly in the building, and the like. Therefore, in the case of a general household, the base pattern data 58 is similar if the family structure is the same. This should be a standard value. That is, when the family structure is input, the standard value base pattern data 58 is read from the storage device 32 as an initial value.

  Major fluctuation factors of the base pattern data 58 include daily fluctuations, day of the week fluctuations, seasonal fluctuations, and peculiar day fluctuations such as a tray and New Year. Daily fluctuations are predicted based on the building user's schedule data 60 and external information. For other fluctuations, a plurality of base pattern data 58 are prepared. The base pattern data selection means 40 acquires calendar data and selects the optimum base pattern data 58. That is, different base pattern data 58 is stored in the storage device 32 for each day of the week, for each season, and for each specific day, the date and time of the prediction target date is acquired, and the corresponding base pattern is read. You may enable it to input whether it is a peculiar day using the input device 34. FIG.

[Schedule data]
FIG. 3 is an explanatory diagram of a method for acquiring schedule data.
The HEMS server 28 shown in the figure is acquired from the portable terminal 62 or the personal computer 64 through, for example, a local area network or the Internet. That is, the schedule data of the building user (resident of the house) is acquired through an arbitrary interface. It is not realistic to require the user to input schedule data every day only for charge management of the storage battery. Therefore, an example is shown in which the data that the user uses every day is automatically acquired.

  In this embodiment, a terminal device such as a personal computer or a mobile phone that is used for a user to input his / her own action schedule on a daily basis is used for the man-machine interface. When an action schedule is input to the user terminal device, schedule data is automatically transferred to the HEMS server 28 through the network.

  For example, the display 36 is attached to a living room wall. It may be the screen of a television receiver. Here, the calendar data output from the HEMS server 28 is displayed. It can be used to communicate with each other about the family's going out schedule. Further, the schedule data 60 may be input by operating the input device 34 shown in FIG. 1 while viewing this screen.

  The schedule data 60 includes at least data indicating whether each user is out or at home. Further, not only when the user is out or at home, but the detailed schedule may be input and used. For example, as shown in FIG. 3, when going out, when going out, when to go home, no need for meals, etc. If you are at home, you can schedule an action while you are at home, watch movies in the living room, work in the PC in the study room, kitchen You can also enter information such as making sweets. You may enter visitor schedules, meals, availability, number of people, etc.

[In-home power consumption pattern data by individual]
FIG. 4 is an explanatory diagram of home power consumption pattern data for each individual.
As described above, when the schedule data of the whole family is input, the power consumption pattern data for each individual at home as shown in the figure is generated for each person. It is also preferable to prepare a standard value as an initial value, and adjust it to the actual situation little by little. FIG. 4A shows individual home power consumption pattern data when staying at home all day, and FIG. 4B shows individual home power consumption pattern data when going out during the day. The base pattern data 58 is corrected using the individual home power consumption pattern data.

  When the power consumption pattern data for each family member at home can be obtained relatively accurately, the common power consumption pattern obtained by subtracting the sum total may be the base pattern data 58. Alternatively, the individual home power consumption pattern data is a correction coefficient for correcting a part of the base pattern data 58, for example, increasing the power consumption per hour within a range of 1% to 10%. May be.

[External information]
FIG. 5 is an explanatory diagram of an external information acquisition method.
The external information is information including the fluctuation factors of the base pattern such as the current weather, temperature, and weather forecast. As shown in the figure, the HEMS server 28 may automatically acquire the information from the web server 66 through the network 38 such as the Internet. For example, when the temperature is lower than the average temperature from the weather forecast, the correction can be performed only by multiplying the base pattern data by a certain correction coefficient. It is advisable to prepare table data associating the temperature with the correction coefficient. Different base pattern data 58 may be stored in the storage device 32 every time the weather and temperature are different, and any of the base pattern data 58 may be selected in accordance with the weather and temperature information.

[Expected power consumption calculation means and appropriate charging energy calculation means]
FIG. 6 is an explanatory diagram showing the relationship between the predicted power consumption and the appropriate charge power.
If appropriate base pattern data or pattern data taking into account schedule data is selected, the predicted power consumption calculating means 46 calculates the expected power consumption of the corresponding day by integrating the time for one day. be able to. The appropriate charging power amount calculation means 50 acquires the calculation result of the predicted power consumption and the predicted power generation amount for the next day.

  And the stored electric energy of the storage battery as of the day is acquired. For example, as shown in FIG. 6 (a), the storage battery by night power is set so that the total value of the predicted power generation amount of the next day and the storage power amount of the storage battery at the end of the day is substantially equal to the expected power consumption of the next day. Select the amount of charge power. For example, when the total value of the predicted power generation amount on the current day and the next day exceeds the total value of the predicted power consumption amount on the current day and the next day, the charging power amount of the storage battery by night power may be set to zero.

  In addition, even if the storage battery is fully charged, if the expected power consumption of the next day cannot be covered, as shown in FIG. 6 (b), the shortage of the next day will be supplied with power by the transmission and distribution line. If the figure shown in FIG. 2, FIG. 4 or FIG. 6 or the figure with this color-coded is displayed on the display 36 (FIG. 1), the energy consumption pattern of the user is conveyed to the user and the optimum Can be promoted.

  Moreover, it is good to display the relationship between the appropriate charge electric energy and the electric energy which can charge the storage battery 20 currently installed. When the amount of power that can be charged by the storage battery 20 is small with respect to the calculated appropriate amount of charging power, the most economical power use is not possible. If the relationship between the two is known, the user can make an expansion plan for the storage battery 20.

[Replace base pattern data]
FIG. 7 is an explanatory diagram of a method for replacing base pattern data.
The past performance data 68a and 68b of the user are accumulated. It is desirable to correct the existing base pattern data 58a from them, generate new base pattern data 58b, and store it in the storage device. Data indicating the time transition of daily power consumption may be displayed on a display or printed out by a printer for the user's reference. The actual data acquired every day is compared with the existing base day, season, and specific day base pattern data, and if the difference is below a certain range, the existing base pattern data is optimized. Save as above. That is, the base pattern data replacement unit stores base pattern data that is more suitable for actual results, corrects and replaces existing data, and stores the data in the storage device 32. If the difference is large, it may be discarded as exception data, or may be stored as an example of data that is not suitable for optimizing the base pattern data.

  With the above system, the total power consumption per day consumed in the user's building is accurately predicted and calculated, the predicted power generation amount of the private power generator 18 is calculated, and the charge amount of the storage battery 20 is optimized and controlled. can do. Thereby, the electric power of the cheapest private power generation power supply device 18 can be preferentially used for charging the storage battery 20.

FIG. 8 is a flowchart showing an example of the charge control operation of the storage battery.
First, in step S <b> 11, the input device 34 accepts basic data such as the configuration of the user's building and performs initial setting of the base pattern data 58. At the same time, a plurality of base pattern data 58 taking into account the daily fluctuation of the prediction target date is generated and stored in the storage device 32. Thereafter, when charging control of the storage battery is started, the base pattern data selection means 40 acquires the day of the week or the like of the prediction target day, selects appropriate base pattern data 58, and stores it from the storage device 32 in step S12. read out.

  In step S <b> 13, the schedule data acquisition unit 42 acquires the schedule data 60. At this time, it is assumed that the schedule data 60 of all users of the building has already been input. In step S <b> 14, the external information acquisition unit 44 acquires external information (for example, weather forecast) through the network 38. In step S15, the predicted power consumption calculating means 46 calculates the predicted power consumption.

  The predicted power consumption calculating means 46 generates the in-home power consumption pattern data for each individual shown in FIG. 4 using the schedule data 60 and corrects the base pattern data 58. Further, the base pattern data 58 is corrected based on the weather forecast data. On the other hand, also in step S <b> 16, the predicted power generation amount calculation means 48 calculates the predicted power generation amount of the private power generation power supply 18 using the weather forecast data. For example, the generated power for each time zone may be obtained by the product of the average generated power per unit time and the coefficient corresponding to the sunshine energy for that time zone, and the day portion may be integrated.

  In step S <b> 17, the appropriate charging power amount calculation unit 50 calculates the appropriate charging power amount. As described with reference to FIG. 6, this process is a process of subtracting the predicted power generation amount of the next day and the stored power amount of the current storage battery from the predicted power consumption of the next day. In step S18, the storage battery charging / discharging control means 52 sets the charging time for the first charging circuit 22, the second charging circuit 24, and the discharging circuit 26 so that the storage battery 20 has the appropriate amount of charging power thus obtained. The discharge time is set, and storage battery charge / discharge control is executed in step S19.

  In step S20, the record data recording means 54 obtains record data from the energy consumption record, and stores them in the storage device 32 in step S21. In step S22, the base pattern data replacing unit 56 determines whether it is necessary to replace the base pattern. When the result of this determination is yes, the process proceeds to step S23. When the result is no, the process returns to step S12, and the process is repeated. In step S23, the replacement process is executed as described in FIG. Thereafter, the initial establishment process of the base pattern data is performed again at step S11. Thus, the charging control of the storage battery is continued.

  Note that the computer program executed by the above-described arithmetic processing device may be modularized in units illustrated in functional blocks, or may be integrated by combining a plurality of modules. Further, the above computer program may be used by being incorporated into an existing application program. A computer program for realizing the present invention is recorded on a computer-readable recording medium such as a CD-ROM, and can be installed and used in any information processing apparatus, and downloaded through a network. You can also.

DESCRIPTION OF SYMBOLS 10 Storage battery utilization system 12 Transmission / distribution electric wire path 14 Distribution board 16 In-house wiring 18 Private power generation power supply device 20 Storage battery 22 1st charging circuit 24 2nd charging circuit 26 Discharging circuit 28 HEMS server 30 Arithmetic processor 32 Storage device 34 Input device 36 Display 38 Network 40 Base pattern data selection means 42 Schedule data acquisition means 44 External information acquisition means 46 Expected power consumption calculation means 48 Expected power generation amount calculation means 50 Appropriate charging power amount calculation means 52 Storage battery charge / discharge control means 54 Actual data recording means 56 Base pattern data replacement means 58 Base pattern data 60 Schedule data 62 Portable terminal 64 Personal computer 66 Web server 68 Actual data

Claims (7)

A storage device that stores a plurality of types of base pattern data indicating a time transition of power consumption of a day, acquired from a standard value or a past record of the corresponding building;
From the storage device, base pattern data selection means for selecting and reading out the base pattern data suitable for the prediction of the power consumption of the target day,
Schedule data acquisition means for acquiring schedule data indicating whether the user of the building is at least going out or at home;
External information acquisition means for acquiring information that is an external factor that fluctuates the power generation amount of the private power generation power supply device through a network;
Based on the base pattern data, the schedule data, and the external information, the time transition of the daily power consumption of the target day is calculated, and the total power consumption of the corresponding day is calculated by summing up the calculation results. An expected power consumption calculating means for calculating the amount;
Based on the external information, an expected power generation amount calculation means for calculating an expected power generation amount of the day that is the target of the private power generation power supply device;
An appropriate charge energy calculation means for calculating an appropriate charge energy amount of the storage battery at the end of the previous day, from the expected power consumption amount and the expected power generation amount on the same day obtained by the calculation,
The storage battery that supplies power to the building's in-house wiring is provided with storage battery charging control means for controlling charging so that the power of the appropriate charging power obtained by the calculation is charged during the previous day. Storage battery utilization system. In the storage battery utilization system according to claim 1,
In the storage device, the base pattern data is stored as different data according to daily fluctuation, day of the week fluctuation, seasonal fluctuation, and specific day fluctuation,
The storage battery utilization system, wherein the base pattern data selection means refers to a calendar and selects base pattern data of a target day. In the storage battery utilization system according to claim 1 or 2,
The storage battery utilization system, wherein the schedule data is acquired from an arbitrary terminal device used by a user through a network. In the storage battery utilization system according to any one of claims 1 to 3,
Performance data recording means for storing performance data indicating a time transition of past power consumption in a storage device together with data that is a variation factor;
A storage battery utilization system comprising base pattern data replacement means for replacing the base pattern data with performance data of the recent fluctuation factors. In the storage battery utilization system according to any one of claims 1 to 4,
A storage battery utilization system comprising a display for displaying the calculated appropriate charge power amount and the chargeable power amount of the storage battery. Computer
A storage device that stores a plurality of types of base pattern data indicating a time transition of power consumption of a day, acquired from a standard value or a past record of the corresponding building;
From the storage device, base pattern data selection means for selecting and reading out the base pattern data suitable for the prediction of the power consumption of the target day,
Schedule data acquisition means for acquiring schedule data indicating whether the user of the building is at least going out or at home;
External information acquisition means for acquiring information that is an external factor that fluctuates the power generation amount of the private power generation power supply device through a network;
Based on the base pattern data, the schedule data, and the external information, the time transition of the daily power consumption of the target day is calculated, and the total power consumption of the corresponding day is calculated by summing up the calculation results. An expected power consumption calculating means for calculating the amount;
Based on the external information, an expected power generation amount calculation means for calculating an expected power generation amount on the day and the previous day that are subject to the private power generation power supply device;
An appropriate charge energy calculation means for calculating the appropriate charge energy of the storage battery of the previous day, from the expected power consumption of the target day and the expected power generation on the same day determined by the calculation,
A storage battery charging control means for controlling charging so that the storage battery that supplies power to the building's in-house wiring is charged with the appropriate amount of charging power determined by the calculation during the previous day,
Storage battery utilization system control program to function as.   A computer-readable recording medium on which the storage battery utilization system control program according to claim 6 is recorded.

Images