JP2019033564A - Information processing device, communication system, information processing method, and program - Google Patents

Abstract

To adjust a polling interval of a polling communication relating to power supply-demand control.SOLUTION: An information processing device is configured to create a second instruction relating to a first polling communication that is performed for acquiring a first instruction relating to charge or discharge of a storage battery. The information processing device comprises a period determination part, a polling interval determination part and an instruction creation part. The period determination part determines at least a first communication period including an estimation period in which the first instruction is estimated to be created based on a power supply/demand prediction, or a second communication period not including the first communication period. The polling interval determination part determines at least a first execution interval of the first polling communication in the first communication period, or a second execution interval of the first polling communication in the second communication period. The instruction creation part creates the second instruction including at least the first execution interval or the second execution interval.SELECTED DRAWING: Figure 3

Description

  Embodiments described herein relate generally to an information processing apparatus, a communication system, an information processing method, and a program.

  2. Description of the Related Art An electric power system that controls electric power supply and demand using a power storage device provided on an electric power demand side is known. The power supply side in the power system monitors the power supply and demand situation in real time. When power supply / demand tightness is likely to occur, the power supply side instructs the power demand side to discharge the power storage device. When the reverse power flow is likely to increase, the power demand side is instructed to charge the power storage device. By such power supply and demand control, a power supply and demand balance is secured, and power supply is stabilized.

  The instruction from the power supply side is generally acquired by polling communication that is less dependent on the network environment. The polling interval in the polling communication is preferably as short as possible from the viewpoint of stable power supply. This is because if the polling interval is long, the power demand side cannot immediately obtain an instruction from the power supply side, and there is a possibility that the supply and demand adjustment may be hindered. However, if the polling interval is shortened, there arises a problem that the communication amount due to polling and the communication cost associated with the communication amount increase. Therefore, simply, the polling interval cannot be shortened.

JP 2008-283330 A Japanese Unexamined Patent Publication No. 2016-220335 JP 2014-82703 A

  One embodiment of the present invention adjusts the polling interval of polling communication related to power supply and demand control.

  An information processing apparatus as one aspect of the present invention is an information processing apparatus that creates a second instruction related to first polling communication performed to acquire a first instruction related to charging or discharging of a storage battery, and determining a period Unit, a polling interval determination unit, and an instruction creation unit. The period determining unit determines at least a first communication period including an estimated period in which the first instruction is estimated to be generated based on power supply and demand prediction, or a second communication period not including the first communication period. To do. The polling interval determination unit determines at least a first execution interval of the first polling communication in the first communication period or a second execution interval of the first polling communication in the second communication period. The instruction creating unit creates the second instruction including at least the first execution interval or the second execution interval.

1 is a block diagram illustrating an example of a communication system according to an embodiment of the present invention. The figure which shows an example of the schematic flowchart of the whole process of the communication system which concerns on this embodiment. 1 is a block diagram showing an example of a schematic configuration of an instruction creation device according to an embodiment. The figure which shows an example of determination of a request | requirement estimation period. The figure which shows another example of determination of a request | requirement estimation period. The figure which shows an example of the schematic flowchart of the whole process of the instruction | indication production apparatus which concerns on this embodiment. The block diagram which shows an example of the hardware constitutions in one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(One embodiment of the present invention)
FIG. 1 is a block diagram showing an example of a communication system according to an embodiment of the present invention. A communication system according to an embodiment of the present invention includes a power transmission / distribution system 1, a power storage system 2, a communication method determination system 3, a communication network 4, and an information providing system 5.

  The communication system according to the present embodiment determines a communication method related to the power supply / demand control performed between the power transmission / distribution system 1 and the power storage system 2, To achieve both.

  The power transmission / distribution system 1 is a system that supplies power. For example, a transmission / distribution company system is assumed.

  The power storage system 2 is a system that can charge power from the power transmission / distribution system 1 and can send power to the power transmission / distribution system 1 by discharging the charged power.

  In the communication system according to the present embodiment, it is assumed that a request for discharge is made from the power transmission / distribution system 1 to the power storage system 2 when the power supply is tight to the power demand. Further, it is assumed that when the power supply is excessive with respect to the power demand, the power transmission / distribution system 1 makes a charge request to the power storage system 2. However, it is assumed that a request from the power transmission / distribution system 1 is sent to the power storage system 2 via the communication method determination system 3. When the power storage system 2 performs charging or discharging in response to these requests, the power supply and demand is controlled, and a stable power supply and demand state is realized. The request for charging or discharging from the power transmission / distribution system 1 is described as a charge / discharge request.

  The power storage system 2 includes at least a storage battery, and can be charged or discharged based on an instruction from the communication method determination system 3. The power storage system 2 may be a known power storage system 2. For example, as illustrated in FIG. 1, the power storage system 2 may include an instruction acquisition device 21, a power storage control device 22, and a storage battery 23. In the present embodiment, the instruction acquisition device 21 receives an instruction from the communication method determination system 3. Further, the power storage control device 22 controls the storage battery 23 based on the instruction acquired by the instruction acquisition device 21. Further, it is assumed that the storage battery 23 is charged or discharged by being controlled by the power storage control device 22.

  In the following description, the terms “supply” and “demand” refer to electric power unless otherwise specified.

  Note that power transmission / reception between the power transmission / distribution system 1 and the power storage system 2 is performed in a power network independent of the communication system of the present embodiment. Therefore, the description regarding power transmission and reception is omitted. Also in FIG. 1, the power network related to power transmission and power reception is omitted.

  The communication method determination system 3 receives a charge / discharge request from the power transmission / distribution system 1 and creates an instruction for the power storage system 2 to respond to the charge / discharge request. As the communication method determination system 3, for example, an aggregator system is assumed. For example, as illustrated in FIG. 1, when there are a plurality of power storage systems 2, it is assumed that a charge amount or a discharge amount shared by each power storage system 2 is determined and an instruction is given to each power storage system 2. An instruction related to charging or discharging from the communication method determination system 3 for each power storage system 2 is referred to as a charge / discharge instruction (first instruction).

  The charge / discharge instruction is acquired by polling communication (first polling communication). That is, the power storage system 2 performs polling and inquires of the communication method determination system 3 about the presence / absence of a charge / discharge instruction.

  In power supply and demand control, a polling communication method is mainly employed because of restrictions on equipment performance and network configuration on the demand side. The polling communication is a communication method in which the data receiving side inquires the data transmitting side about the presence or absence of a transmission request (polling) and starts receiving data when there is a transmission request. Therefore, the communication method determination system 3 on the data transmission side does not transmit the charge / discharge instruction until a request is received from the power storage system 2 on the data reception side.

  Specifically, the power storage system 2 confirms with the communication method determination system 3 whether or not there is a file change related to the charge / discharge instruction. As a confirmation means, for example, it is conceivable to use an HTTP header update check function. When there is a change, the file is sent to the power storage system 2 via the communication network 4. Thereby, the power storage control device 22 of the power storage system 2 can control the charging or discharging of the storage battery 23. When there is no charge / discharge instruction when receiving a polling from the power storage system 2, the communication method determination system 3 transmits information indicating that there is no charge / discharge instruction, for example, a response only for reception confirmation such as Ack. May be.

  Further, the communication method determination system 3 determines an interval of polling performed by the power storage system 2. An interval at which polling is performed is described as a polling interval.

  The communication method determination system 3 determines the polling interval based on the communication volume record related to the communication network 4. This is to suppress the communication cost that increases according to the traffic. In power supply and demand control, high security is required, so TLS (Transport Layer Security) is used. However, TLS has a drawback that the overhead is large and the communication amount is large. Therefore, for example, when the communication cost for the communication network 4 is a pay-per-use billing contract, the shorter the polling interval, the higher the communication amount and the higher the communication cost. In the present embodiment, it is assumed that the polling interval is adjusted to suppress the communication amount as much as possible.

  Further, the polling interval may be different for each period. That is, the communication method determination system 3 may determine a plurality of periods and determine a polling interval for each determined period. For example, the polling interval may be shorter than a predetermined interval in the first period, and the polling interval may be longer than the predetermined interval in the second period. Further, the polling interval of a certain period may be longer than the period. That is, polling may not be performed during the period.

  However, unless the power storage system 2 performs polling, the charge / discharge instruction is not acquired, and therefore the power storage system 2 is not charged or discharged. Therefore, if polling is not performed during a period in which a charge / discharge instruction is expected to be generated, the power supply / demand state becomes unstable. Therefore, polling is always performed during a period in which a charge / discharge instruction is expected to be generated. A period in which polling is always performed is described as a polling essential period (first communication period). One of a plurality of periods determined by the communication method determination system 3 is a polling essential period. Further, the communication method determination system 3 notifies the power storage system 2 of the polling required period.

  In order for the power storage system 2 to perform polling at the instructed polling interval during the period instructed by the communication method determination system 3, an instruction regarding polling for obtaining a charge / discharge instruction is received from the communication method determination system 3. Need to get. Therefore, it is assumed that the communication method determination system 3 gives the power storage system 2 an instruction regarding polling for acquiring a charge / discharge instruction. An instruction related to polling communication for acquiring a charge / discharge instruction is referred to as a polling instruction (second instruction). That is, the communication method determination system 3 gives the power storage system 2 two of a polling instruction and a charge / discharge instruction.

  The polling instruction need not include all the determined polling intervals. For example, in the case where the power storage system 2 stores a predetermined polling interval, the polling interval to be changed and its period need only be included in the polling instruction.

  The polling instruction may also be acquired by polling communication (second polling communication). For example, when it is determined that a polling instruction is generated in a predetermined time zone, polling may be performed in the predetermined time zone. The specific means of the polling communication for acquiring the polling instruction may be the same as the polling communication for acquiring the charge / discharge instruction.

  Alternatively, the power storage system 2 may periodically poll the communication method determination system 3 to obtain a polling instruction. When performing polling communication regularly, the power storage system 2 can acquire the updated polling instruction even when the polling instruction is updated due to an unexpected situation.

  For example, when the polling instruction is created on the previous day, but the power supply and demand state on the day is contrary to the expectation and the polling required period differs from the expectation, the polling instruction may be recreated on the day. In such a case, it is necessary to notify the power storage system 2 that the polling instruction has been re-created, but when the communication network 4 does not permit anything other than polling communication, the communication system determination system 3 notifies it. I can't. Therefore, if the polling communication is not performed regularly, it is necessary to provide a setting for communication from the communication method determination system 3 to the power storage system 2 in an emergency or to secure another communication route. However, when performing polling communication regularly, even if the above-mentioned unexpected situation occurs, if polling instructions are created before the polling communication execution time immediately before the polling requirement period, power can be stored without any special work. The polling communication for the system 2 to acquire the charge / discharge instruction can be started.

  When a specific condition such as an emergency is satisfied, the power storage system 2 may perform polling at a predetermined polling period and polling interval instead of the polling period and polling interval instructed from the communication method determination system 3. Good. For example, when a natural disaster such as an earthquake or a power system failure such as a power failure occurs and an event that affects the accuracy of prediction of the polling required period occurs, it may be an emergency.

  The communication network 4 is a network that relays communication between the power storage system 2 and the communication method determination system 3. The communication network 4 may permit only polling communication from the viewpoint of security. When only polling communication is permitted, it is not necessary to provide an exception, and it is desirable to improve the security and reduce the burden on the network administrator.

  The information providing system 5 provides the communication method determining system 3 with information used for determining a period related to the polling interval. The information includes information related to power supply and demand prediction. Moreover, the electric usage result used in order to calculate a polling essential period may be included. The information providing system 5 is not particularly limited. Details will be described later.

  Next, the processing flow of each system will be described. FIG. 2 is a diagram illustrating an example of a schematic flowchart of overall processing of the communication system according to the present embodiment.

  First, the communication method determination system 3 acquires the actual amount of electricity used from the power transmission / distribution system 1 (S101), and acquires prediction information from the information providing system 5 (S102). The electricity usage record may be acquired from the information providing system 5. As the prediction information, for example, a weather forecast for the next day from a weather forecast system is assumed. Then, the communication method determination system 3 predicts the future electricity usage based on the actual electricity usage and the prediction information (S103).

  When the amount of electricity used is predicted, the communication method determination system 3 creates a polling instruction based on the amount of electricity used and the actual amount of communication (S104). In this flow, the polling instruction includes a polling essential period and a polling interval in the polling essential period.

  The power storage system 2 acquires the polling instruction and recognizes the polling requirement period and the polling interval (S105). Then, the power storage system 2 starts polling communication at a specified polling interval at least during the polling essential period (S106). For example, when the polling requirement period is from 12:00 to 14:00 on the next day, the power storage system 2 starts polling at a designated polling interval at 12:00 on the next day. Although polling may be performed in a period other than the polling required period, the polling interval is longer than the designated polling interval. Thereby, polling in an unnecessary time zone can be restricted and the traffic can be suppressed.

  If the power supply / demand is as expected, the power transmission / distribution system 1 makes a charge / discharge request to the communication method determination system 3 after the power storage system 2 starts polling (S107). Then, the communication method determination system 3 creates a charge / discharge instruction for each power storage system 2 (S108). Since the polling has already started, the polling is performed at least once until the same time as the polling interval elapses from the creation of the charge / discharge instruction, and the power storage system 2 acquires the charge / discharge instruction (S109). The power storage system 2 that has acquired the charge / discharge instruction performs charge or discharge in accordance with the charge / discharge instruction (S110), and the flow ends. Thereby, the immediacy of the power supply and demand control can be maintained while suppressing the communication amount.

  Details of the communication method determination system 3 will be described. As described above, the communication method determination system 3 creates a charge / discharge instruction and a polling instruction. In the present embodiment, it is assumed that the communication method determination system 3 includes an instruction creation device (information processing device) 31 and the instruction creation device 31 creates a charge / discharge instruction and a polling instruction.

  FIG. 3 is a block diagram illustrating an example of a schematic configuration of the instruction creation device 31 according to the present embodiment. The instruction creation device 31 according to the present embodiment includes a charge / discharge request acquisition unit 311, a charge / discharge instruction creation unit 312, a supply / demand information acquisition unit 313, a supply / demand prediction unit 314, a period determination unit 315, and a polling interval determination unit. 316, a polling instruction creating unit 317, a communication unit 318, and a storage unit 319.

  The charge / discharge request acquisition unit 311 acquires a charge / discharge request from the power transmission / distribution system 1. Based on the charge / discharge request acquired by the charge / discharge request acquisition unit 311, the charge / discharge instruction creation unit 312 determines a charge amount or a discharge amount shared by each power storage system 2 and creates a charge / discharge instruction.

  It is assumed that the amount of charge or the amount of discharge shared by each power storage system 2 differs for each power storage system 2 depending on the characteristics or state of the storage battery of the power storage system 2. For example, for the power storage system 2 with a small amount of power storage, it is assumed that a large amount of charge is specified when a charge request is made and a small amount of discharge is specified when a discharge request is made. It is also assumed that the discharge amount and the discharge amount are changed according to the storage capacity of the storage battery. In this way, the charge / discharge instruction is created in consideration of the current state and characteristics of the storage battery of the power storage system 2. Therefore, the charge / discharge instruction is different for each power storage system 2. It is assumed that the characteristics or state of the storage battery of power storage system 2 is acquired from power storage system 2 and stored in storage unit 319.

  The supply and demand information acquisition unit 313 acquires information necessary for prediction of power supply and demand. The information is used by the supply / demand prediction unit 314. That is, any information may be used as long as it is used for the supply and demand prediction unit 314. As information necessary for power supply and demand prediction, for example, past electricity usage results are included. In addition, weather information regarding future weather such as temperature and solar radiation may be acquired.

  The supply and demand prediction unit 314 predicts future power supply and demand based on the information acquired by the supply and demand information acquisition unit 313. For example, the power supply / demand may be indicated by the amount of electricity used, or may be indicated by the difference between the amount supplied and the amount of electricity used.

  For example, the next day's power supply and demand may be calculated based on the predicted temperature transition of the next day, the temperature history, and the actual amount of electricity used. First, a correlation curve between the temperature and the electricity usage is created based on the temperature history and the actual electricity usage. Then, based on the predicted temperature transition of the next day and the correlation curve, the transition of the electricity usage of the next day is predicted.

  The period determination unit 315 determines a period in which it is estimated that a charge / discharge request is made from the supply / demand prediction predicted by the supply / demand prediction unit 314. For example, predict the time when there is a high possibility of supply and demand adjustment, such as power demand suppression (peak cut) and solar power output increase response (reverse power flow suppression), and the time when charge / discharge requests are made To do. Specifically, for example, a predicted time period in which the amount of electricity used on the next day exceeds a predetermined threshold is detected, and it is predicted that a charge / discharge request is made in that time period. A period in which the charge / discharge request is estimated to be performed is described as a request estimation period (estimation period).

  FIG. 4 is a diagram illustrating an example of determining the request estimation period. In FIG. 4, the curve graph shows the predicted temperature, and the bar graph shows the predicted electricity usage per unit time. The predicted electricity usage is calculated by the supply and demand prediction unit 314.

  The time zone in which the predicted electricity usage exceeds the predetermined threshold is a time zone in which supply and demand is expected to be tight, and it is expected that a charge / discharge request will be made in that time zone. Therefore, the time zone in which the predicted electricity usage exceeds the predetermined threshold corresponds to the request estimation period.

  The period determining unit 315 determines a polling essential period based on the request estimation period. The request estimation period as it is may be used as the polling requirement period, or the polling requirement period may completely include the request estimation period. For example, a period including 30 minutes before and after the request estimation period may be set as the polling essential period. This is because the request estimation period is based on electric power supply and demand prediction, and thus may differ from the actual charge / discharge request time. The difference between the polling requirement period and the request estimation period may be determined in consideration of the traffic.

  When a charge / discharge request is made, it is preferable that a charge / discharge instruction is quickly created and the power storage system 2 immediately acquires the charge / discharge instruction. Therefore, it is preferable that polling communication for acquiring a charge / discharge instruction is frequently performed in the polling essential period. Therefore, in this embodiment, the polling interval in the polling essential period is adjusted to be as short as possible while considering the traffic.

  Note that the period determining unit 315 may determine other periods that do not include the polling essential period, as shown in FIG. There may be a plurality of other periods. In other periods, it is assumed that a charge / discharge instruction is not created, so the polling interval may be reduced.

  FIG. 5 is a diagram illustrating another example of determination of a request estimation period. In FIG. 5, the curve graph indicates the predicted amount of sunshine, and the bar graph indicates the predicted amount of electricity used per unit time.

  When the predicted amount of sunshine is high, it is assumed that the amount of photovoltaic power generation is large. That is, the supply amount is considered to be large in the time zone when the predicted amount of sunshine is high. When the predicted amount of electricity used is low in a time period when the predicted amount of sunshine is high, it is assumed that the supply is excessive and the power is surplus. Therefore, the time period in which the predicted amount of sunshine is high and the predicted amount of electricity used is low is the request estimation period for charging.

  In the example of FIG. 4, a time period in which the predicted amount of sunshine exceeds the sunshine amount threshold value and the electricity usage amount falls below the electricity usage threshold value is set as the request estimation period.

  Note that supply and demand can be predicted with other weather information. For example, in the case of wind power generation, it is assumed that the time period when the predicted wind speed is high is the request estimation period.

  The polling interval determination unit 316 determines the polling interval for the period determined by the period determination unit 315 based on the actual traffic volume. Note that the communication amount is the communication amount related to the communication network 4. That is, the total amount of communication with each power storage system 2 is used.

ＰＴ_ｓは、翌日におけるポーリング実施期間の合計を示す。Ｃ_ｍは１ヶ月あたりの通信量の上限値を示す。Ｔ_ｄは、予測の対象の日が属する月の残りの日数を示す。例えば、５月３１に６月１日の予測を行う場合は、予測の対象の日は６月１日であり、残りの日数は３０日とする。Ｃ_ｐは予測の対象の日が属する月の既に発生した通信量を示す。Ｃ_ｒは空振りポーリング以外の通信の翌日の予測される合計通信量を示す。空振りポーリングとは、指示作成装置３１に問い合わせを行ったが充放電の命令が出されておらず、ポーリング通信による要請に対してＡｃｋなどの受信確認のみが応答として返信されることである。Ｃ_ｎは空振りポーリング１回あたりの通信量を示す。 For example, consider a case where a polling required period and a polling interval are determined on a daily basis. The predicted reference polling interval T _p of the next day is expressed by the following equation.

PT _s indicates the total polling period on the next day. C _m indicates the upper limit value of the communication amount per month. T _d indicates the number of days remaining in the month to which the prediction target day belongs. For example, when the prediction of June 1 is performed in May 31, the prediction target day is June 1 and the remaining number of days is 30 days. C _p indicates the traffic already generated in the month to which the prediction target day belongs. C _r represents the total traffic that is predicted for the next day of the communications other than the idling polling. In the idle polling, an instruction is made to the instruction creating device 31, but no charge / discharge command is issued, and only a reception confirmation such as Ack is returned as a response to a request by polling communication. C _n indicates the amount of communication per idle polling.

The denominator on the right side of Equation 1 indicates the maximum allowable number of idle polls for the next day. Accordingly, reference polling interval T _p indicates the day of the shortest polling interval in the case all the polling interval the same.

Polling interval determination section 316, based on the reference polling interval T _p calculated by Equation 1, may be adjusted polling interval of each period. For example, shorter than the polling interval based polling interval T _p in a polling mandatory period, other periods may be longer than the reference polling interval T _p. Thus, the polling interval in the polling mandatory period by less than the reference polling interval T _p, the suppression of the traffic, and the improvement of immediacy of the power supply and demand control, compatible.

  The polling interval determination unit 316 may adjust the polling interval for each power storage system 2. For example, the polling interval is adjusted within a certain range based on the characteristics of the storage battery, the charge / discharge performance, and the like. The charge / discharge performance is assumed to be the time required to achieve the charge / discharge target capacity. The adjustable range may be determined in advance or may be calculated based on the charge / discharge performance.

  For example, it is assumed that there is a first storage battery that the first power storage system has and a second storage battery that the second power storage system has. The first storage battery is assumed to have a faster charge or discharge rate than the second storage battery. In such a case, the first storage battery can be charged or discharged to a predetermined capacity in a shorter time than the second storage battery. Therefore, even if the acquisition of the charge / discharge instruction is slightly delayed, the first storage battery has little influence on the power supply and demand. Therefore, for the first storage battery, the communication amount may be further suppressed by making the polling interval for obtaining the charge / discharge instruction longer than the reference polling interval.

  Conversely, the second storage battery, which has a slower charge or discharge rate than the first storage battery, requires more time than other storage batteries to charge or discharge to a predetermined capacity. Therefore, the second storage battery has a great influence on the power supply and demand when the acquisition of the charge / discharge instruction is delayed. Therefore, for the second storage battery, the immediacy of power supply and demand control may be improved by making the polling interval for obtaining the charge / discharge instruction shorter than the reference polling interval.

  As described above, the polling interval of each power storage system 2 may be changed in accordance with the characteristics of the power storage system 2 in order to achieve both suppression of communication amount and immediacy of power supply and demand control. In said case, it is preferable that the polling interval of the polling essential period of a 1st storage battery is longer than the polling interval between the synchronization of a 2nd storage battery.

  In the above description, it is assumed that the polling interval determination unit 316 acquires the characteristics of each power storage system 2 and adjusts the polling interval for each power storage system 2. However, the polling instruction adjustment unit 317 adjusts the polling interval. May do.

  The polling instruction creating unit 317 creates a polling instruction. The polling instruction includes a polling interval in the mandatory polling period or a polling interval in a period (second communication period) other than the mandatory polling period. An instruction not to perform polling in a period other than the polling essential period may be included. For example, a polling interval in a period other than the polling essential period may be set to a predetermined value, and it may be determined in advance that no polling is performed when the power storage system 2 receives the predetermined value.

  The polling instruction is created for each power storage system 2. The polling instruction may be customized for each power storage system 2. For example, when the same polling required period is instructed to all the power storage systems 2, all the power storage systems 2 start polling at the start time of the polling required period. Therefore, a large amount of polling reaches the instruction creating device 31 at almost the same time, and the load on the instruction creating device 31 increases. Therefore, the start time of the polling required period may be shifted for each power storage system 2 so that a large amount of polling is not concentrated. For example, the power storage systems 2 are divided into a plurality of groups based on the number of polls that can be processed simultaneously by the instruction creation device 31. And it adjusts so that the start time of a polling required period may be shifted for every group. The time length for shifting may be determined in advance, or may be determined by randomly selecting a value within a predetermined range.

  The communication unit 318 receives a request from the power storage system 2, that is, polling communication, and transmits a polling instruction and a charge / discharge instruction corresponding to the power storage system 2 via the communication network 4.

  The storage unit 319 stores input information, processing results of each component, and the like. The stored information is not particularly limited. Each component is accessible. For example, the created charge / discharge instruction and polling instruction may be stored in the storage unit 319, and these instructions may be extracted from the storage unit 319 when the communication unit 318 receives a request from the power storage system 2. Moreover, you may memorize | store the characteristic of the storage battery acquired from each electrical storage system 2, the charging / discharging track record, etc.

  Next, the flow of processing by each component will be described. FIG. 6 is a diagram illustrating an example of a schematic flowchart of the overall processing of the instruction creating device according to the present embodiment.

  The supply and demand information acquisition unit 313 acquires information for power supply and demand prediction (S201). The supply and demand prediction unit 314 predicts the request estimation period based on the acquired prediction information (S202). The period determining unit 315 determines a polling essential period based on the request estimation period (S203). The polling interval determination unit 316 determines the polling interval based on the actual traffic volume (S204). The polling instruction creation unit 317 creates a polling instruction for each power storage system 2 after adjusting the polling start time, the polling interval, and the like.

  Note that this flowchart is an example, and the order of processing is not limited as long as a required processing result can be obtained. For example, the process of predicting the execution time zone of the charge / discharge request (S201 and S202), the process of calculating the polling required period (S203), and creating the polling instruction (S204) are described as a series of processes. However, these processes may be performed separately. In addition, the processing result of each process may be sequentially stored in the storage unit 319, and each component may acquire the processing result with reference to the storage unit 319.

  As described above, according to the present embodiment, the required period of polling communication is determined by predicting the time zone in which the charge / discharge request is performed. Then, by reducing the polling interval of the essential period or by increasing the polling interval of a period other than the essential period, it is possible to achieve both reduction in communication amount and immediacy of power supply and demand control.

  Furthermore, according to the present embodiment, since the response timing of the instruction creating device 31 can be distributed, the responsiveness of the instruction creating device 31 can be maintained even if the demand side increases.

  In addition, said embodiment is an example and a part of component of the said embodiment may exist in an external apparatus. For example, in the above embodiment, the instruction creating device 31 has the supply and demand prediction unit 314, but the supply and demand prediction unit 314 may be in an external device. In that case, the supply and demand prediction is passed from the external device to the period determination unit 315.

  Note that the instruction creating device 31 may be configured by a plurality of devices that can exchange data by communication or electrical signals. For example, it may be divided into a charge / discharge instruction creating apparatus having a component for creating a charge / discharge instruction and a polling instruction creating apparatus having a component for creating a polling instruction. Further, the instruction acquisition device 21 and the power storage control device 22 of the power storage system 2 may be the same device.

  Each process in the embodiment described above may be realized by a dedicated circuit, or may be realized by using software (program). When software (program) is used, the embodiment described above uses, for example, a general-purpose computer device as basic hardware, and a processor such as a central processing unit (CPU) installed in the computer device. It can be realized by executing the program.

  FIG. 7 is a block diagram illustrating an example of a hardware configuration according to an embodiment of the present invention. The instruction creating device 31 includes a processor 61, a main storage device 62, an auxiliary storage device 63, a network interface 64, and a device interface 65, and is realized as a computer device 6 connected via a bus 66. it can. The instruction creating device 31 may further include an input device 67 and an output device 68.

  The instruction creation device 31 in the present embodiment may be realized by previously installing a program to be executed by each device in the computer device 6, or storing the program in a storage medium such as a CD-ROM or a network It may be realized by being distributed via the above and installed in the computer device 6 as appropriate.

  In FIG. 7, the computer device includes one component, but may include a plurality of the same components. Further, although FIG. 7 shows one computer device, software may be installed in a plurality of computer devices. A processing result may be created by each of the plurality of computer devices executing a part of processing different in software. That is, the instruction creation device 31 may be configured as a system.

  The processor 61 is an electronic circuit including a computer control device and an arithmetic device. The processor 61 performs arithmetic processing based on data or a program input from each device having an internal configuration of the computer device 6, and outputs a calculation result and a control signal to each device. Specifically, the processor 61 executes an OS (Operating System), an application, and the like of the computer device 6 and controls each device configuring the computer device 6.

  The processor 61 is not particularly limited as long as the above processing can be performed. The processor 61 may be, for example, a general purpose processor, a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a controller, a microcontroller, a state machine, or the like. Further, the processor 61 may be incorporated in an application specific integrated circuit, a field programmable gate array (FPGA), or a programmable logic circuit (PLD). Further, the processor 61 may be composed of a plurality of processing devices. For example, it may be a combination of a DSP and a microprocessor, or one or more microprocessors that cooperate with the DSP core.

  The main storage device 62 is a storage device that stores instructions executed by the processor 61 and various data. Information stored in the main storage device 62 is directly read out by the processor 61. The auxiliary storage device 63 is a storage device other than the main storage device 62. Note that the storage device means any electronic component capable of storing electronic information. As the main storage device 62, a volatile memory used to store temporary information such as RAM, DRAM, SRAM, etc. is mainly used. In the embodiment of the present invention, the main storage device 62 is used as the volatile memory. It is not limited. A storage device used as the main storage device 62 and the auxiliary storage device 63 may be a volatile memory or a non-volatile memory. Non-volatile memory includes programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable PROM (EEPROM), non-volatile random access memory (NVRAM), flash memory, MRAM, etc. . Further, magnetic or optical data storage may be used as the auxiliary storage device 63. As data storage, a magnetic disk such as a hard disk, an optical disk such as a DVD, a flash memory such as a USB, a magnetic tape, or the like may be used.

  Note that if the processor 61 reads or writes information to or from the main storage device 62 or the auxiliary storage device 63 directly or indirectly, the storage device is in electrical communication with the processor. Can do. The main storage device 62 may be integrated with the processor. Again, it can be said that the main storage device 62 is in electrical communication with the processor.

  The network interface 64 is an interface for connecting to the communication network 4 by wireless or wired. The network interface 64 may be one that conforms to existing communication standards. An output result or the like may be transmitted by the network interface 64 to the external device 7 that is communicably connected via the communication network 4 or the communication network 4 different from the communication network 4.

  The device interface 65 is an interface such as a USB connected to the external device 7 that records output results and the like. The external device 7 may be an external storage medium or a storage such as a database. The external storage medium may be any recording medium such as H7, CD-R, CD-RW, DVD-RAM, DVD-R, SAN (Storage area network). Alternatively, the external device 7 may be an output device. For example, a display device for displaying an image or a device for outputting sound or the like may be used. Examples include, but are not limited to, a liquid crystal display (LCD), a cathode ray tube (CRT), a plasma display panel (PDP), and a speaker.

  Further, part or all of the computer device 6, that is, part or all of the instruction creating device 31 is configured by a dedicated electronic circuit (that is, hardware) such as a semiconductor integrated circuit on which the processor 61 is mounted. Also good. The dedicated hardware may be configured in combination with a storage device such as a RAM or a ROM.

  Although one embodiment of the present invention has been described above, these embodiment are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Electric power transmission / distribution system 2 Power storage system 21 Instruction acquisition device 22 Power storage control device 23 Storage battery 3 Communication system determination system 31 Instruction creation device (information processing device)
311 Charge / Discharge Request Acquisition Unit 312 Charge / Discharge Instruction Creation Unit 313 Supply / Demand Information Acquisition Unit 314 Supply / Demand Prediction Unit 315 Period Determination Unit 316 Polling Interval Determination Unit 317 Polling Instruction Creation Unit 318 Communication Unit 319 Storage Unit 4 Communication Network 5 Information Provision System 6 Computer Device 61 Processor 62 Main storage device 63 Auxiliary storage device 64 Network interface 65 Device interface 66 Bus 7 External device

Claims (13)

An information processing apparatus that creates a second instruction related to a first polling communication performed to acquire a first instruction related to charging or discharging of a storage battery,
A period determining unit that determines at least a first communication period including an estimation period in which the first instruction is estimated based on power supply and demand prediction, or a second communication period not including the first communication period; ,
A polling interval determination unit for determining at least a first execution interval of the first polling communication in the first communication period or a second execution interval of the first polling communication in the second communication period;
An instruction creating unit for creating the second instruction including at least the first execution interval or the second execution interval;
An information processing apparatus comprising: At least one of the first execution interval being shorter than the predetermined execution interval, the second execution interval being longer than the predetermined execution interval, and the first execution interval being shorter than the second execution interval. The information processing apparatus according to claim 1, wherein: The information processing apparatus according to claim 1, wherein the first execution interval or the second execution interval is determined based on a traffic volume record. The information according to any one of claims 1 to 3, further comprising: a communication unit that receives the first polling communication and transmits a charge / discharge instruction corresponding to the received communication source of the first polling communication to the communication source. Processing equipment. When the time required for charging or discharging the first storage battery that is the storage battery is shorter than the second storage battery that is the storage battery,
The first execution interval of the first storage battery is longer than the first execution interval of the second storage battery;
The information processing apparatus according to any one of claims 1 to 4. When there are a plurality of the storage batteries and a plurality of the second instructions are created,
The information processing apparatus according to any one of claims 1 to 5, wherein the instruction creation unit changes a start time of the estimation period in at least a part of the plurality of polling instructions. The information processing apparatus according to any one of claims 1 to 6, further comprising a supply and demand prediction unit that generates the power supply and demand prediction. The information processing apparatus according to claim 7, wherein the power supply / demand prediction is generated based on weather information. A first information processing device for creating a first instruction relating to charging or discharging of the storage battery;
A second information processing device for obtaining the first instruction by performing a first polling communication to the first information processing device for charging or discharging control of the storage battery;
A communication system comprising:
The first information processing apparatus includes:
A period determining unit that determines at least a first communication period including an estimation period in which the first instruction is estimated based on power supply and demand prediction, or a second communication period not including the first communication period; ,
A polling interval determination unit for determining at least a first execution interval of the first polling communication in the first communication period or a second execution interval of the first polling communication in the second communication period;
An instruction creating unit for creating a second instruction including at least the first execution interval or the second execution interval;
With
The second information processing device, based on the second instruction acquired from the first information processing device, at least in the first execution interval or the second communication period in the first communication period or the second communication period. A communication system that performs the first polling communication at an execution interval. The first information processing apparatus accepts only polling communication from the second information processing apparatus,
The communication system according to claim 9, wherein the second information processing apparatus periodically performs second polling communication with respect to the first information processing apparatus in order to acquire the second instruction. The communication system according to claim 9 or 10, wherein the second information processing apparatus performs the first polling communication at a predetermined third interval in a predetermined third period according to a third instruction. A method for creating a second instruction relating to a first polling communication performed to obtain a first instruction relating to charging or discharging of a storage battery,
Determining at least a first communication period including an estimation period in which the first instruction is estimated based on power supply and demand prediction, or a second communication period not including the first communication period;
Determining at least a first execution interval of the first polling communication in the first communication period or a second execution interval of the first polling communication in the second communication period;
Creating the second instruction including at least the first execution interval or the second execution interval;
An information processing method comprising: A program for creating a second instruction related to a first polling communication performed to acquire a first instruction related to charging or discharging of a storage battery,
Determining at least a first communication period including an estimation period in which the first instruction is estimated based on power supply and demand prediction, or a second communication period not including the first communication period;
Determining at least a first execution interval of the first polling communication in the first communication period or a second execution interval of the first polling communication in the second communication period;
Creating the second instruction including at least the first execution interval or the second execution interval;
A program comprising

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