JP2011211820A - Power demand management device, power demand management system, and power demand management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep a voltage of a low-voltage power distribution line within a reference value by using the power generation of a home distribution power supply such as a photovoltaic panel even in a time zone at which surplus power form an ordinary house is generated.SOLUTION: The power demand management device includes: a surplus power prediction part which acquires surplus power information related to surplus power in the past which was generated from a plurality of facilities and predicts the surplus power on the basis of the acquired surplus power information; and a transmission part which transmits power accumulation request information including a power accumulation request amount and a power accumulation request time to the facilities on the basis of the predicted surplus power.

Description

  The present invention relates to a power demand management device, a power demand management system, and a power demand management method.

  Recently, it is considered that a distributed power source that uses renewable energy using a solar panel installed in a facility such as a home or a building will rapidly spread. If the power generated by the distributed power source installed in each facility is greater than the power consumption of the facility, it flows backward to the distribution line, generating surplus power. A system for purchasing surplus electricity by electric power companies has started in FY2009.

  However, if the spread of solar panels and so on is promoted rapidly, the voltage at the end will increase due to the backflow from a large number of distributed power sources to the distribution line. For example, in Japan, it will exceed the upper limit of 107V, which is the upper limit of the power supply reference voltage There is a risk that things will happen frequently.

  In the technique described in Patent Document 1, the power generation by the solar panel is stopped before the supply reference voltage value of the distribution line to be connected is reached.

JP 2008-118806

  However, in the technique described in Patent Document 1, since the power generation of the installed solar panel is stopped, the power that should normally be generated is not generated. Therefore, it cannot be said that environmental energy is used to the maximum in the point where the ability of the solar panel is not exhibited, and it cannot be said that it is good for the environment. Moreover, the subject that the surplus electric power which is originally purchased for a consumer does not generate | occur | produce arises.

  Then, this invention aims at implement | achieving energy saving by fully exhibiting the electric power generation performance of a solar panel.

  In order to solve the above problems, one embodiment of the present invention includes the following configuration. That is, surplus power information related to past surplus power generated from a plurality of facilities is acquired, and a surplus power prediction unit that predicts surplus power based on the acquired surplus power information, and a power storage request based on the predicted surplus power A transmission unit configured to transmit the storage request information including the amount and the storage request time to the facility.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to implement | achieve energy saving by fully exhibiting the power generation performance of a solar panel.

It is the schematic of the electric power demand management apparatus and system of 1st embodiment. It is a data structural example of performance data DB of 1st embodiment. It is a data structural example of area information DB of 1st embodiment. It is a data structural example of area information DB of 1st embodiment. It is a data structural example of request | requirement performance DB of 1st embodiment. It is a data structural example of request | requirement performance DB of 1st embodiment. It is the hardware block diagram and functional block diagram of the electric power demand management apparatus of 1st embodiment. It is a flowchart for demonstrating the processing flow at the time of the surplus electric power prediction of the electric power demand management apparatus of 1st embodiment. It is a conceptual diagram at the time of the surplus electric power prediction of the electric power demand management apparatus of 1st embodiment. It is a flowchart for demonstrating the processing flow of the electrical storage request amount calculation part of the electric power demand management apparatus of 1st embodiment. It is a conceptual diagram at the time of the power storage request user number calculation in the power storage request amount calculation part of the electric power demand management apparatus of 1st embodiment. It is a flowchart for demonstrating the processing flow of the incentive calculation part of the electric power demand management apparatus of 1st embodiment. It is a flowchart for demonstrating the processing flow of the increase calculation part of the electric power demand management apparatus of 1st embodiment. It is a flowchart for demonstrating the processing flow of the incentive allocation part of the electric power demand management apparatus of 1st embodiment. It is a figure which shows the example of a hardware configuration of an electric power demand management apparatus. It is a flowchart for demonstrating the processing flow of the electric power demand management apparatus in 1st embodiment, and the whole system. It is a flowchart for demonstrating the processing flow of the electric power demand management apparatus in 1st embodiment, and the whole system. It is a figure which shows an example of the message display screen which alert | reports an electrical storage request condition to a user. It is a figure which shows an example of the message display screen which alert | reports an electrical storage request condition to a user.

It is a flowchart for demonstrating the processing flow of the electrical storage request amount calculation part of the electric power demand management apparatus of 1st embodiment. It is the schematic of the demand management apparatus and system of 2nd embodiment. It is a data structural example of storage battery DB of 2nd embodiment. It is a flowchart for demonstrating the processing flow at the time of the incentive calculation of 2nd embodiment.

Example 1
Hereinafter, the first embodiment will be described in detail.

  FIG. 1 is a schematic diagram of a power demand management apparatus and system according to the first embodiment.

  The storage battery 1 is, for example, an EV battery that is owned by a general household and can be installed or connected inside or outside the house. It is also possible to supply electric power from a storage battery to home appliances. The distributed power source 2 uses natural energy such as a solar panel installed on the roof of a house. For example, it is assumed that a general household owns and a reverse power flow to the distribution line occurs depending on the balance between the power generation amount and the consumption amount in each household. The meter 3 measures the supply power to each home and the surplus power that flows back to the distribution line every unit time. The measurement data transmitter 4 transmits the measurement value of the meter 3 to the measurement data relay 5.

  The measurement data relay 5 collects data of the measurement data transmitter 4 for each region such as a region sharing a low voltage distribution line. The measurement data access network 6 is connected to a plurality of measurement data relays 5 to communicate data. The measurement data totaling server 7 is connected to the measurement data access network 6 and collects information on the measurement data transmitter 4. The performance data DB 8 accumulates detailed data regarding the power supply and surplus power of each household transmitted from the measurement data totaling server 7 for each time period. For example, the data regarding the increase amount by having requested | required electrical storage among the electric power supplied to each household is accumulate | stored, and it classifies and holds for every low voltage distribution line area. The regional information DB 9 accumulates data on regional environmental factors such as the weather and temperature of each region and contact information such as an email address of a general household electric power contractor by transmission via the Internet or operator input. .

  The request record DB 10 accumulates data related to an increase in the amount of power supplied by a power storage request to each home in the time zone when the power storage request is made, transmitted from the power demand management device 11 described later.

  The power demand management apparatus 11 is connected to the performance data DB 8, the regional information DB 9, the request performance DB 10 and a network, etc., and makes a power storage request to the power user's personal computer, mobile phone or dedicated terminal 13 through the Internet or the like. Also, from the amount of power supplied and surplus power up to the previous day, calculate the amount of power storage request by predicting the time zone of surplus power on the day and the amount of surplus power, set incentives, and calculate the amount to be paid for each consumer. decide. However, by using the incentive amount described below to compensate for the reduction in price, electricity charges will be reduced (discounted for electricity charges) for facilities on low-voltage distribution lines during the time when surplus power is expected to be generated. A method of measuring the increase is also conceivable.

  The Internet 12 is a transmission network for transmitting information to user terminals. The dedicated terminal 13 receives power storage request information from a power demand management device described later. For example, a personal computer or a mobile phone installed in a general household or public institution receives the storage request information. The power storage request information is a power storage request amount and a power storage time zone.

  Next, system components will be described.

  First, FIG. 2, FIG. 4, FIG. 4, FIG. 5, FIG. 2, FIG. 4, FIG. 5, FIG. 5, with respect to the performance data DB8, the regional information DB9, and the request performance DB10 that provide the power demand management device 11 with data necessary for prediction of power supply and surplus power and This will be described with reference to FIG.

  FIG. 2 is a data configuration example of the performance data DB of the first embodiment. The structural example of the data acquired from the measurement data transmitter 4 memorize | stored in performance data DB8 is shown.

The performance data 201 is data related to the performance, and has entries 202 to 210.
The entry 202 is registration information of a unique number in each home. The entry 203 is registration information of the date. The entry 204 is registration information for the day of the week. The entry 205 is event registration information when the day is a special day such as Golden Week or New Year's holiday. The entry 206 is time zone registration information. The entry 207 is registration information of predicted supply power per time zone. The entry 208 is registration information of power supply per time zone. The entry 209 is registration information of surplus power per time slot. The entry 210 is registration information for an increase in power supply due to the request.

  3 and 4 are data configuration examples of the regional information DB of the first embodiment.

The following is a description of FIG. The regional information data 301 is data relating to regional information. The entry 302 is registration information of a unique number of each low-voltage distribution line area. An entry 303 is registration information of the date. The entry 304 is time zone registration information. An entry 305 is weather registration information. An entry 306 is sunshine amount registration information. The entry 307 is temperature registration information.
Here, registration may be input by an operator or the like.

  The following is a description of FIG. The regional user data 401 is data related to the region and user information. The entry 402 is registration information of a unique number of each low-voltage distribution line area. The entry 403 is user ID registration information. An entry 404 is registration information of a user contact address. The contact address is, for example, a telephone number, an e-mail address, or an address.

  Since the components of the regional information DB 9 are the same as those of a normal WEB server, they are omitted.

  5 and 6 are data configuration examples of the request record DB of the first embodiment.

  The following is a description of FIG.

  The request record data 501 is data related to the request record in the region. An entry 502 is ID registration information for a low-voltage distribution line area. An entry 503 is registration information of the date. The entry 504 is registration information for the day of the week. An entry 505 is registration information indicating that the event is an event if the current day is a special day.

  A low-voltage distribution line area is one area divided on the same low-voltage distribution line. The entry 506 is registration information for the power storage request time zone. The entry 507 is registration information of the total incentive. The entry 508 is registration information of the requested amount of power storage.

  The following is a description of FIG.

  The individual user record data 601 is data related to request records for a plurality of users. An entry 602 is registration information of a user ID in each area. The entry 603 is registration information of the date. An entry 604 is registration information for a day of the week. The entry 605 is registration information indicating that the event is an event if the current day is a special day. The entry 606 is registration information for the power storage request time zone. The entry 607 is registration information for the requested amount of power storage. An entry 608 is registration information of an actual supply amount. An entry 609 is registration information of the contribution ratio of each user. An entry 610 is registration information of an incentive distributed to each user.

  FIG. 7 is a configuration diagram of the power demand management apparatus 11 of the first embodiment.

  The power demand management device 701 is a device that manages power demand. The surplus power prediction unit 702 predicts the surplus power on the current day from the surplus power for each time zone of each region up to the previous day (details will be described with reference to FIGS. 8 and 9). The storage request amount calculation unit 703 calculates the storage request amount of the day from the predicted surplus power (details will be described with reference to FIGS. 10 and 20). The power storage request unit 704 obtains the user contact information of each region from the regional information DB 9, and uses the information including the power storage request time zone of each region on that day and the power storage request amount generated in that time zone as a power storage request message. Send for each facility. For example, the storage request message is notified by e-mail or the like (details will be described later with reference to FIG. 11). However, regardless of the individual notification, the request method may be a method such as publishing using the Internet or mass media. The incentive calculation unit 705 determines an incentive total amount to be paid for the power storage cooperation for each power storage request time zone of each region on that day. The increase amount calculation unit 706 calculates the amount of change in the supply power and surplus power of the facility due to the request for power storage after the end of the power storage request time period of that day (details will be described later in FIG. 12). The incentive allocating unit 707 and the transmitting / receiving unit 708 acquire data from the Internet or DB in response to requests from each unit, transmit data to each unit, and transmit data from each unit to the Internet or DB. The input unit 709 acquires each data by an operator input and transmits the data to the transmission / reception unit 108.

  Here, the user is the owner of the facility. A facility is a house, building or factory. A region is an area including a plurality of facilities sharing a low-voltage distribution line.

  FIG. 15 shows a hardware configuration of the power demand management apparatus 701.

  Reference numeral 1501 denotes a CPU. Reference numeral 1502 denotes a memory. Reference numeral 1503 denotes an external storage device such as a hard disk. Reference numeral 1504 denotes a reading device that reads data from a storage medium. Reference numeral 1505 denotes an input device such as a keyboard or a mouse. Reference numeral 1506 denotes a network connected to the record data DB 8, the regional information DB 9, the request record DB 10, and the like, and a communication device connected to the Internet. Reference numeral 1507 denotes a bus for connecting these devices.

  Further, this program is downloaded from the storage medium via the reading device 1504 or from the network or the Internet for connecting to the result data DB 8, the regional information DB 9, the request result DB 10, etc. to the external storage device 1403 via the communication device 1506, It may be executed by the CPU 1501.

  The surplus power prediction unit 702, the power storage request amount calculation unit 703, the power storage request unit 704, the incentive calculation unit 705, the increase amount calculation unit 706, and the incentive allocation unit 707 are executed by the CPU 1501 executing a program drawn to the memory 1502. Realized. The transmission / reception unit 708 is realized using the communication device 1506. The input unit 709 is realized using the input device 1505.

  This can be realized by the CPU 1501 executing a program loaded on the memory 1502. Therefore, the processing according to the flowchart in the present embodiment is controlled by the CPU.

  FIG. 8 is a flowchart for explaining a processing flow at the time of surplus power prediction of the power demand management apparatus of the first embodiment. It is a flowchart which the surplus electric power estimation part 702 performs.

  The surplus power predicting unit 702 acquires surplus power for each time zone in each area up to the previous day from the performance data DB 8 (step 801). Conditions such as day of the week and special day for each time zone of each area up to the previous day are acquired from the result data DB 8 (step 802). The conditions about the weather, the sunshine, or the temperature for each time zone in each area up to the previous day are acquired from the area information DB 9 (step 803). A request presence / absence condition for each time zone of each area is acquired from the request record DB 10 (step 804). An increase / decrease tendency according to conditions such as day of the week or special day is calculated for surplus power (step 805). An increase / decrease tendency due to weather, sunshine, or temperature is calculated for surplus power (step 806). The increase / decrease tendency by request is calculated about the surplus power (step 807). Using a prediction method such as multiple regression analysis, the amount of surplus power (when no request is made) is predicted for each time zone in each region on the current day (step 808). The surplus power for each time zone of each region on the day is transmitted to the power storage request amount calculation unit 703 (step 809).

  As an example of the prediction method, a calculation method in the case of performing power demand prediction using multiple regression analysis is shown. For each region, variables such as whether it is a day of the week, special day, weather, sunshine, temperature, etc. are used to calculate the influence of each variable on the increase or decrease in surplus power, and a regression equation suitable for predicting surplus power for each region And surplus power is predicted according to this regression equation. Specifically, the influence on the increase or decrease of surplus power according to the day of the week is calculated from the past data, the influence on the increase or decrease of surplus power depending on whether it is a special day is calculated from the past data, and the weather is calculated from the past data. Calculate the impact on surplus power increase / decrease due to sunny, cloudy, rain, etc., and calculate the impact on surplus power increase / decrease due to sunshine from past data. The influence is calculated, the influence of each variable is calculated for each region, a regression equation that is optimal for prediction is created, and surplus power in each region is predicted based on this regression equation.

Here regression equation _{is S = b 0 + b 1 x} 1 + b 2 x 2 + b 3 x 3 + b 4 x 4 + b 5 x 5. S represents the expected surplus power. x ₁ represents the day of the week (in the case of weekday 0, in the case of weekends and replaced with the 1 of categorical variables). x ₂ represents a special date (if it is not a special day 0, for example, replaced by year-end and New Year holidays if 1, categorical variables as GW if 2). x ₃ represents the weather (in the case of sunny 0, cloudy 1, rain is replaced by the categorical variables as 2). x ₄ represents the amount of sunlight. x ₅ represents the temperature. b ₀ is an intercept and is a coefficient representing the influence of each variable on b ₁ to b ₅ surplus power.

  FIG. 9 is a conceptual diagram at the time of surplus power prediction of the power demand management apparatus of the first embodiment. This is processing performed by the surplus power prediction unit 702. Past surplus power is acquired (step 901). The increase / decrease tendency by the day of the week or the special day when surplus power is generated in each region is calculated (step 902). A trend of increase / decrease due to weather, sunshine or temperature of surplus power in each region is calculated (step 903). The increase / decrease tendency of the surplus power due to the power storage request in each region is calculated (step 904). The surplus power of the day is predicted from the information (step 905).

  FIG. 10 is a flowchart for explaining the processing flow of the power storage request amount calculation unit of the power demand management apparatus according to the first embodiment. This is processing performed by the power storage request amount calculation unit 703.

  The power supply for each time zone in each area from the result data DB to the previous day is acquired (step 1001). A condition such as a day of the week or a special day for each time zone in each area up to the previous day is acquired from the record data DB 8 (step 1002). The weather, sunshine, or temperature condition for each time zone of each area up to the previous day is acquired from the area information DB 9 (step 1003). From the request record DB 10, a condition with or without a request for each time zone in each region is acquired (step 1004). An increase / decrease tendency according to conditions such as day of the week or special day is calculated for the supplied power (step 1005). An increase / decrease tendency due to weather, sunshine, or temperature is calculated for the supplied power (step 1006). For the supplied power, the increase / decrease tendency due to the power storage request is calculated (step 1007). The power supply for each time zone in the area on the current day (when not requested) is predicted (step 1008). A condition with or without a request from a user in each area is acquired from the request record DB 10 (step 1009). The amount of increase in power supply in the requested time zone is acquired from the result data DB 8 for each user in each region (step 1010). For each region, an average supply power increase amount per user (one user means one facility) is calculated (step 1011). The surplus power prediction unit 702 obtains surplus power for each time zone on that day in each region (step 1012). The surplus power amount on that day in each region is set as the power storage request amount on that day in each region (step 1013). The number of users requesting for each time zone on the day of each region is calculated from the power storage request amount on that day in each region and the average amount of increase in power supply per user in each region (step 1014). The storage request amount on that day in each region and the number of requested users are transmitted to the storage request unit 704 (step 1015). The power storage request time zone and the power storage request amount on that day in each region are transmitted to the request result DB 10 (step 1016).

  In addition, all the surplus electric energy of the day of each area is good also as a power storage request amount, and it is good also as a power storage request amount that is smaller than a surplus power amount.

  Note that a process using a power flow analysis simulation is also conceivable as the processing of the power storage request amount calculation unit 703. The processing procedure using the tidal current analysis simulation will be described later with reference to FIG.

  FIG. 11 is a conceptual diagram when calculating the number of power storage request users in the power storage request amount calculation unit of the power demand management apparatus of the first embodiment. This is processing performed by the power storage request amount calculation unit 703.

  The power storage request amount calculation unit 703 acquires the predicted surplus power for each time zone of each region on the day calculated by the surplus power calculation unit 702 (step 1101). The value of the average supply increase amount per user for each region, which is calculated from the supply increase amount of each user in the region at the time of the past request, is acquired (step 1102). By dividing the surplus power value for each time zone by the average supply increase per user, the number of requested users in each time zone required to obtain the supply increase amount that offsets the surplus power for each time zone on that day Is calculated (step 1103). However, when the increase in supply is measured by reducing the price of electricity, the number of requested users may not be calculated, and all users in the region may be notified of the reason for the price reduction of electricity.

  FIG. 20 is a flowchart for explaining the processing flow of the power storage request amount calculation unit of the power demand management apparatus according to the first embodiment. This is a flowchart illustrating a processing procedure of the power storage request amount calculation unit 703 when a power flow analysis simulation is performed.

The power storage request amount calculation unit 703 acquires the predicted surplus power for each time zone of each region from the surplus power calculation unit 702 (step 2001). The predicted supply power for each area on the day is calculated (step 2002). The voltage distribution of the high-voltage and low-voltage distribution lines for each time zone in each region on the current day is estimated by tidal current analysis simulation (step 2003). In each area of the day, the time zone in which the distributed power source connected with the voltage at the demand end exceeding 107 V stops is estimated (step 2004). In the time period when the distributed power supply stops, the demand in any one or a plurality of regions is increased (the increased amount is used as the amount of requested power storage), and the power flow analysis is performed again (step 2005). As a result of the tidal current analysis, it is determined whether or not all of the distribution line demand ends are 107 V or less (step 2006). For each area obtained above, an average supply increase amount by request per user is calculated (step 2007). The number of requested users is calculated from the amount of power storage request for each time zone in each region and the average supply increase per user (step 2008).
The storage request time zone, the storage request amount, and the number of requested users in each region on the current day are transmitted to the storage request unit 704 (step 2009). The storage request time zone and storage request amount in each region on that day are transmitted to the request record DB 10 ( Step 2010).

  Even if there is an area where the voltage is predicted to exceed the reference value, it is possible to keep the voltage within the reference value by issuing a power storage request by that area and other areas by the tidal current analysis simulation. It becomes possible to control the voltage of distribution lines in a comprehensive manner.

  An example of the tidal current analysis simulation method is shown below.

  When conducting a tidal current analysis simulation, the power storage request amount calculation unit creates data on the network structure of the power transmission network / distribution network, sets the current voltage distribution based on the current power distribution plan obtained from the power company, An area exceeding 107 V is specified by adding the value of the power supply / surplus power predicted from each facility in the time zone to the voltage distribution.

  If there is an area that exceeds 107V, increase the demand in the area or one or more adjacent areas, calculate the overall voltage distribution again, and determine whether it is 107V or less at all of the demand ends. .

  This operation is repeated until all demand ends become 107V or less, and the region where the demand should be increased and the amount to be increased are specified.

  If there is no region exceeding 107V, it is not necessary to increase the demand in the region or in one or more adjacent regions.

  In this way, the number of requested regional users is calculated from the area where the demand should be increased and the amount to be increased.

  Thus, when it is predicted that the voltage of the distribution line exceeds the reference value, a power storage request is issued to the user and cooperation is provided, so that the power can be operated without exceeding the reference value of the distribution line. Moreover, since it does not stop solar power generation, a power solar panel can fully exhibit the power generation performance.

  Next, a method for assigning incentives to increase motivation in response to a power storage request from a user will be described below.

  In this embodiment, for example, the cost of a power company for processing surplus power is used as a source of incentives.

  First, let us explain the deemed purchase fee, which is one of the sources of incentives.

  It is promised that if the amount of power generated by a household solar panel is greater than the amount consumed at home, it will flow back to the distribution line and be purchased by an electric power company.

  However, when the PCS is activated by the voltage rise of the distribution line to which the solar panel is connected and the power generation is stopped, the power generation cannot be performed during that time period, and the customer cannot receive the purchase fee.

  In such a case, it is considered that there is a fear that the power company may request a purchase fee for the power that was originally generated from the customer who installed the solar panel with the purchase fee applied.

  In the present embodiment, such a request is called “deemed purchase”, and this cost is taken as an example of an incentive resource.

  The power generation cost, one of the incentive resources, will be explained.

  When electric vehicles are widespread, it is considered that EV batteries are often stored in the evening or at night.

  For example, in an all-electric apartment, such as an area that consumes a large amount of electric power in the evening or at night, there may be a situation in which demand suddenly rises only for a certain time in the evening or at night, and a standby power supply must be activated.

  In this embodiment, the cost of starting the standby power supply is called “power generation cost”, and this cost is an example of incentive resources.

  FIG. 12 is a flowchart for explaining the processing flow of the incentive calculation unit of the power demand management apparatus of the first embodiment. This is processing performed by the incentive calculation unit 705 of the power demand management apparatus 701.

When the deemed purchase fee is used as a resource, the purchase price per unit of 1 kW for the day is acquired by an operator input or the like (step 1201).
A storage request amount for each time zone of each region is acquired from the storage request amount calculation unit 704 (step 1202).
Multiplying the unit purchase price per 1kW by the amount of electricity requested for storage, and calculating the deemed purchase cost when no electricity storage request is made, thereby calculating the purchase cost for each time zone in each region of the day (step 1203). .

  When the power generation cost is used as a resource, the power storage request amount calculation unit 704 acquires the power storage request amount for each time zone in each region on the current day (step 1204). A power generation cost is obtained when power corresponding to the power storage request amount for each time zone in each region of the day is generated by the Internet or an operator input (step 1205). The total cost for each time zone of each region on the day is calculated from the sum of the costs calculated by these methods (step 1206). The total cost for each time zone in each region on that day is transmitted as an incentive total to the power storage request unit 704 (step 1207). The total incentive amount is transmitted to the request record DB 10 (step 1208).

  FIG. 13 is a flowchart for explaining the processing flow of the increase amount calculation unit of the power demand management apparatus according to the first embodiment. This is a process performed by the increase amount calculation unit 706. After the last power storage request time zone of the current day ends, the increase amount calculation unit 706 acquires the power storage request time zone of each area of the current day from the request record DB 10 (step 1301). The predicted supply power of each user in the power storage request time zone of the current day is acquired from the power storage request amount calculation unit 704 (step 1302). The power supply to each user in each area on the current day is acquired from the record data DB 8 (step 1303). The amount of increase due to the request is calculated by subtracting the predicted supply power from the supply power for each power storage request time zone (step 1304). The increase amount by the request for each user's time zone on the day is transmitted to the performance data DB 8 (step 1305). However, other methods such as a method of calculating a request acceptance rate for each attribute or time zone such as a day of the week or a special day, or a method of calculating a request acceptance rate for each user are also conceivable.

  Here, the increase amount is the actual amount of electricity stored. By this calculation, each user can know the actual amount of electricity stored according to the time zone.

  FIG. 14 is a flowchart for explaining the processing flow of the incentive allocation unit of the power demand management apparatus according to the first embodiment. For example, the incentive is assigned based on the actual amount of stored electricity. Incentives are not assigned if the power storage request is not handled.

  This is processing performed by the incentive allocation unit 707 of the power demand management apparatus 701. The incentive allocating unit 707 acquires the power storage request time zone of each region on the current day from the request performance DB 10 (step 1401). The total incentive for each power storage request time zone is acquired from the request record DB 10 (step 1402). The actual supply amount for each power storage request time zone is acquired from the request record DB 10 (step 1403). The ratio of the electric power supplied to each user in the actual supply amount in one area of the storage request time zone of each area on that day is calculated (step 1404). The ratio of the power supplied to each user is transmitted to the request record DB 10 (step 1405). An incentive amount for each power storage request time zone on the current day is assigned according to the ratio of power supplied to each user (step 1406). The incentive amount allocated to each user is transmitted to the request record DB 10 (step 1407).

  Next, a processing procedure of the entire power demand management apparatus will be described. FIGS. 16 and 17 are flowcharts for explaining the processing flow of the power demand management apparatus and the entire system in the first embodiment.

  The following is a description of FIG. The power demand management apparatus 11 acquires conditions (such as day of the week, weather, presence / absence of request) that are considered to affect the surplus power and the increase / decrease in surplus power for each time zone from the result data DB 8 until the previous day ( Step 1601). The surplus power for each time zone in each region on the current day is predicted using a prediction method such as multiple regression analysis (step 1602).

  Conditions (day of the week, weather, presence / absence of request, etc.) that are considered to affect the supply power and the increase / decrease of the power supply for each time zone in each region until the previous day are acquired from the result data DB 8 (step 1603). Using a prediction method such as multiple regression analysis, the power supply for each time zone of the current day (when not requested) is predicted (step 1604). The amount of increase in power supply in the time zone requested by the user in each region is acquired from the record data DB 8 (step 1605). The average amount of power supplied per user in each area is calculated (step 1606). The surplus power amount for each time zone in each region is set as the power storage request amount for each time zone in that region (step 1607). The number of requested users for each time zone on the current day of each region is calculated from the amount of power storage requested on that day in each region and the average increase in power supply per user (step 1608).

  The following is a description of FIG. It is determined whether there is surplus power (storage request amount) in any time zone of each region on the current day (step 1701). The cost for surplus power processing is calculated for each time zone of each region on the current day (step 1702). A power storage request is made with the cost of surplus power processing in each time zone as the total incentive (step 1703).

  After the power storage request time zone for the current day, the power supplied by each user in the power storage request time zone is acquired (step 1704). An incentive according to the power supplied by each user in the power storage request time zone is assigned (step 1705). After the power storage request time period of the current day, the amount of increase in power supply due to the power storage request is calculated by comparing the predicted power supply with the actual power supply (step 1706). The predicted supply power, actual supply power, supply power increase, and incentive for each region are transmitted to the request record DB 10 (step 1707).

  Next, a method for displaying the power storage request message will be described.

  18 and 19 are diagrams illustrating an example of a message display screen for notifying the user of the power storage request status. The example of a display on the screen of the user's personal computer or mobile phone for the user to confirm the power storage request status and the power storage request amount in his / her area is shown.

  FIG. 18 is an example of a display for notifying the user that surplus power is generated in each region and requesting storage.

  Reference numeral 1801 denotes a display indicating a time zone in which surplus power is generated. Reference numeral 1802 denotes a display representing the total surplus power.

  FIG. 19 is an example of a display requesting a power storage by notifying the user of the power storage request status for each time zone in each region. Reference numeral 1901 denotes a display indicating a time zone. Reference numeral 1902 denotes a display indicating the predicted surplus power.

  By assigning incentives as described above, incentives can be given to users according to actual power storage. The more actual power storage, the more incentives are given, which contributes to increasing the motivation for the user to respond to power storage requests.

(Example 2)
Next, the case of using the storage battery consumption cost as an incentive resource, which is the second embodiment, will be described.

  The storage location 14, the storage location access network 15, and the storage location DB 16 are added to FIG. 1 of the first embodiment, and the rest is the same as the first embodiment.

FIG. 21 is a schematic diagram of a demand management apparatus and system according to the second embodiment.
It is the outline of a distributed storage type demand management system and method when a storage battery owned by an electric power company is installed on the distribution side and information on storage battery consumption is used.

  The following is a description of FIG. The distribution-side storage battery 14 is a storage battery whose cost is the consumption of the storage battery. The storage location access network 15 is connected to the storage battery 14 and the storage battery DB 16. The storage battery DB 16 is a database of information related to storage batteries.

  FIG. 22 is a data configuration example of the storage battery DB of the second embodiment.

  The following is a description of FIG. The storage battery data 2201 is data from entry 2202 to entry 2207 regarding the storage battery. An entry 2202 is registration information of IDs of storage batteries arranged in each area. An entry 2203 is registration information of the date. An entry 2204 is time zone registration information. An entry 2205 is registration information when charging is performed in time. An entry 2206 is registration information when the battery is discharged in time. An entry 2207 is registration information of cost due to consumption of each storage battery.

  FIG. 23 is a flowchart for explaining a processing flow at the time of incentive calculation according to the second embodiment. This is the process of the incentive calculation unit 705 when the cost of storage battery consumption is used as a source.

  The following is a description of FIG. The incentive calculation unit 705 obtains the power storage request amount for each time zone of each region from the power storage request amount calculation unit 704 (step 2301). The cost due to consumption of the storage battery is acquired from the storage battery DB 16 by charging for each time zone of the day (step 2302). When other costs are also used as incentive resources at the same time, the total cost for each time zone of each region on the day is calculated from the sum of the costs (step 2303). The total cost for each time zone in each region on that day is transmitted as an incentive total to the power storage request unit 706 (step 2304). The total incentive amount is transmitted to the request record DB 10 (step 2305).

  By installing a local storage battery on the distribution side as described above, it is possible to store electricity in the region, and even if the voltage may exceed the reference value, it can be kept within the reference value by using the local storage location. I can do it. It is also possible to use the power stored in the local storage location as a source of incentives.

DESCRIPTION OF SYMBOLS 1, 1 '... Household storage battery 2, 2' ... Distributed power supply 3, 3 '... Meter 4, 4' ... Measurement data transmitter 5, 5 '... Measurement data middle instrument 6 , 6 '... Measurement data access network 7, 7' ... Measurement data totaling server 8, 8 '... Results data DB
9, 9 '・ ・ ・ Regional information DB
10, 10 '... Request results DB
11, 11 '... Electric power demand management device 12, 12' ... Internet 13, 13 '... User terminal 14 ... Storage battery 15 ... Storage battery access network 16 ... Storage battery DB

Claims (17)

A surplus power prediction unit that acquires surplus power information related to past surplus power generated from a plurality of facilities and predicts surplus power based on the acquired surplus power information;
Based on the predicted surplus power, a transmission unit that transmits storage request information including a storage request amount and a storage request time to the facility;
A power demand management apparatus comprising: In the electric power demand management apparatus according to claim 1,
An electric power demand management device that transmits an amount equal to or less than the surplus electric power as the amount of power storage request. In the power demand management apparatus according to claim 1 or 2,
A power storage request information calculation unit that calculates the power storage request amount and the power storage request time;
The power storage request information calculation unit predicts a time zone in which the surplus power is generated, sets the time zone as the power storage request time, and calculates the power storage request amount in the time zone. . In the electric power demand management apparatus as described in any one of Claim 1 to 3,
The power storage request information calculation unit predicts the voltage distribution of the distribution line for each region, and when it is predicted that there is a region where the voltage of the distribution line is higher than a reference value, based on the surplus power of the region, When the storage request information is transmitted to the region and other regions other than the region, and it is predicted that there is no region where the voltage of the distribution line is higher than a reference value, the storage request based on the surplus power in each region A power demand management apparatus characterized by requesting information from the area. In the electric power demand management apparatus as described in any one of Claim 1 to 4,
An electric power demand management device comprising: an incentive assigning unit that assigns an incentive to the facility based on an actual amount of electricity stored in the facility due to receiving an electricity storage request. In the electric power demand management apparatus according to any one of claims 1 to 5,
An increase amount calculation unit that calculates an increase amount of the power supply amount of the facility from the predicted power supply amount of the facility and the actual power supply amount due to receiving the power storage request;
The power demand management apparatus, wherein the incentive assigning unit assigns the incentive using the increased amount as the actual power storage amount. In the electric power demand management apparatus as described in any one of Claim 1 to 6,
A power demand management apparatus that discounts an electricity charge at the power storage request time of the facility that has received a power storage request. In the electric power demand management device according to any one of claims 1 to 7,
The incentive allocation unit determines a response to the request of the facility,
An incentive is allocated based on the correspondence. In a power demand management system comprising a performance database, a power demand management device, and a facility,
The results database records surplus power information related to past surplus power generated from a plurality of facilities,
The power demand management device predicts surplus power based on the surplus power information acquired from the performance database, and stores power storage request information including a power storage request amount and a power storage request time based on the predicted surplus power. To the facility,
The facility receives the power storage request information and notifies the user of the power storage request information. In the power demand management system according to claim 9,
The power demand management apparatus transmits an amount equal to or less than the surplus power amount as the power storage request amount. In the power demand management system according to claim 9 or 10,
The power demand management device calculates the storage request amount and the storage request time,
A power demand management system characterized by predicting a time zone in which the surplus power is generated, calculating the power storage request amount in the time zone by using the time zone as the power storage request time. In the power demand management system according to any one of claims 9 to 11,
A regional information database that records regional information including weather and temperature in each region;
A request record database that records request record information related to past requests for the facility;
The power demand management device
The power demand management system, wherein the storage request amount is calculated based on the region information recorded in the region information database and the request record information recorded in the request record database. A power demand management method in a power demand management device comprising a surplus power prediction unit and a transmission unit,
The surplus power prediction unit acquires surplus power information related to past surplus power generated from a plurality of facilities, and predicts surplus power based on the acquired surplus power information;
And a step of transmitting, to the facility, power storage request information including a power storage request amount and a power storage request time based on the predicted surplus power. In the power demand management method according to claim 13,
The said transmission part transmits the quantity below the said surplus electric power as the said electrical storage request amount, The electric power demand management method characterized by the above-mentioned. In the power demand management method according to claim 13 or 14,
The power demand management device includes a power storage request information calculation unit that calculates the power storage request amount and the power storage request time,
The power storage request information calculation unit includes a step of predicting a time zone in which the surplus power is generated, setting the time zone as the power storage request time, and calculating the power storage request amount in the time zone. Demand management method. In the power demand management method according to any one of claims 13 to 15,
The power demand management device includes an incentive allocation unit,
The power demand management method comprising: a step of assigning an incentive to the facility based on an actual amount of electricity stored when the incentive assigning unit receives an electricity storage request. The power demand management method according to any one of claims 13 to 16,
The power demand management device includes an incentive provision unit,
The incentive granting unit determines whether the facility responds to the request,
An electric power demand management method comprising: providing an incentive based on the correspondence.

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