JP6578050B2 - Power management system, power management method and program - Google Patents

Description

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

2. Description of the Related Art In recent years, a power management system including a power generation device that uses renewable energy (natural energy) such as solar power generation and a storage battery is known (see, for example, Patent Document 1).
In addition, the power management system controls the charging / discharging of the storage battery based on the predicted generated power and the predicted power consumption while taking into account the amount of power stored in the storage battery, thereby effectively using the power (energy). (For example, refer to Patent Document 2).
Moreover, what performs power management in the community (aggregate) which consists of a some consumer facility as a power management system is also known (for example, refer patent document 3). This power management system corresponds to a system called TEMS (Town Energy Management System), CEMS (Community Energy Management System), or the like that performs integrated power management of a plurality of customer facilities belonging to a community.

  As a method to efficiently use the stored electricity stored in the storage battery installed in each customer facility, the storage battery installed in the customer facility in the area, that is, the distributed storage battery is managed, It is done efficiently. Here, as the operation of the stored power in the storage battery, it is possible to select a customer facility that charges or discharges the storage battery from among a plurality of customer facilities, and to control charge / discharge of the storage battery of the selected consumer facility Done.

  In Patent Document 1 described above, the power distribution device in the customer facility receives charge information indicating the hourly electricity charge supplied from the system power supply from the server managing the community, and is set based on this charge information. In accordance with the rules (for example, rules for storing electricity by purchasing electricity when the electricity price is low and discharging from the storage battery when the electricity price is high) Control to switch back flow) is performed.

In addition, each customer facility is managed so that a part of the storage battery capacity of each customer facility in the region is managed as a distributed storage battery in the community and the stored power stored in this distributed storage battery is efficiently operated. There is also a method of controlling charging / discharging of the storage battery (see, for example, Patent Document 4).
That is, when there is a customer facility that lacks power in the same community or outside the community, the distributed storage battery in this community is discharged to supply power to the customer facility that lacks power or to the outside of the community. Supply, that is, an operation of reversely flowing power to the system power supply is also performed.

  This power shortage may occur urgently, and it is convenient for the power management system to manage a part of the battery capacity of the storage battery of each customer facility as a shared power amount in advance as a distributed storage battery. . If the distributed storage battery is normally operated efficiently and commonly operated by the power management system, it is possible to respond to an emergency demand. For this reason, by constructing an environment where electric power can be purchased from other customer facilities at a high charge, it is economically possible to reversely flow from the storage battery of the customer facility having surplus power in an emergency. This is advantageous for customer facilities that provide a part of the battery capacity as distributed storage batteries.

Japanese Patent No. 5576218 JP 2013-215092 A JP 2012-055078 A JP 2013-059241 A

  However, when the shared management of the distributed storage battery in each customer facility in Patent Document 4 is executed, the use efficiency of the storage battery in the entire community can be improved, but the state of the storage battery can be freely controlled in each customer facility. I can't. For example, if unplanned power consumption occurs frequently at customer facilities, the amount of stored power provided as a distributed storage battery cannot be freely used, and therefore a part of the battery capacity of the storage battery is provided as a distributed storage battery. Conversely, a time period occurs when the remaining amount of the storage battery is less than the amount of power required by the storage battery.

  The present invention has been made in view of such circumstances, and even when it is set as providing a part of the electric energy of its own storage battery as a shared electric energy in the community as a distributed storage battery, if necessary It is an object of the present invention to provide a power management system, a power management method, and a program capable of performing charge / discharge control of its own storage battery including a preset shared power amount.

  One aspect of the power management system of the present invention is a power management system that performs power management in a power management assembly including a plurality of customer facilities including a storage battery, and the stored power of the storage battery set for each of the consumer facilities. And a demand processing unit that provides a predetermined amount of power to other customer facilities in the power management assembly according to whether or not the user facility accepts the provision of power.

  In one aspect of the power management system of the present invention, a numerical value indicating the predetermined power amount set for each consumer facility corresponds to an acceptance flag indicating whether or not to accept the provision of the predetermined power amount. A provision acceptance table stored in addition, and the demand processing unit refers to the acceptance flag of the provision acceptance table, and determines whether or not the user has accepted provision of the predetermined power amount. It is characterized by performing.

  One aspect of the power management system of the present invention is characterized in that the acceptance flag can be arbitrarily changed by a user of the customer facility.

  According to one aspect of the power management system of the present invention, each of the cases where the predetermined power amount is included or the predetermined power amount is not included corresponding to each of whether or not the predetermined power amount is provided. The apparatus further includes a power storage plan deriving unit that derives a power storage plan for the storage battery for each customer facility.

  One aspect of the power management method of the present invention is a power management method for performing power management in a power management assembly including a plurality of customer facilities including a storage battery, and the stored power of the storage battery set for each consumer facility. , Including a demand processing step of providing a predetermined amount of power to another consumer facility in the power management assembly in accordance with whether or not the user facility accepts the provision of power.

  One aspect of the program of the present invention is a program that causes a computer to execute an operation of a power management system that performs power management in a power management assembly including a plurality of customer facilities including a storage battery. Demand processing means for providing a predetermined amount of power stored in the storage battery set every time to other customer facilities in the power management assembly in accordance with whether or not the user facility accepts the provision of power. It is a program to make it function as.

  According to the present invention, even when it is set as a distributed storage battery that a part of the power amount of its own storage battery is provided as a shared energy amount in the community, the charge / discharge control of its own storage battery is controlled as necessary. It is possible to provide a power management system, a power management method, and a program that can be performed including a preset shared power amount.

It is a figure which shows the structural example of the power management system by the 1st Embodiment of this invention. It is a figure which shows the structural example of the installation in the customer facility H of 1st Embodiment. It is a figure which shows the structural example of the operating terminal 10 of 1st Embodiment. It is a figure which shows an example of a display screen. It is a figure which shows the structural example of the high-order server 200 of 1st Embodiment. It is a figure which shows the structure of the storage battery management table memorize | stored in the reception information storage part. It is a figure explaining a shared use ratio. It is a figure which shows the information of the various equipment memorize | stored in the equipment information storage part. It is a figure which shows the shared use ratio (%) of the storage battery 30 in each customer facility H, and a private use ratio (%). It is a figure which shows an example of the charge level table which is the electric power charge. It is a figure which shows the electrical storage plan LN of the normal time which the electrical storage plan derivation | leading-out part 216 derives | leads-out with respect to the consumer facility H. It is a figure which shows the electrical storage plan LN in emergency which the electrical storage plan derivation | leading-out part 216 derives | leads-out with respect to the customer facility H. It is a figure which shows the electrical storage plan LN at the time of emergency which the electrical storage plan derivation | leading-out part 216 derives with respect to the other customer facility H. It is a flowchart which shows an example of the process performed by the power management system 1 of 1st Embodiment. It is a figure which shows the structural example of 1 A of power management systems of 2nd Embodiment. It is a figure which shows the structural example of the installation in the customer facility H of 2nd Embodiment. It is a figure which shows the structural example of the operating terminal 10 of 2nd Embodiment.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating a configuration example of a power management system according to the first embodiment of the present invention. The power management system in the present embodiment collects power in a customer facility such as a house, a commercial facility, or an industrial facility corresponding to a plurality of customers in a predetermined area range (power management region) that is a power management community, for example. To manage. Such a power management system corresponds to, for example, the TEMS and CEMS described above.

In the power management system 1, operation terminals 10-1 to 10-n provided in each of a plurality of customer facilities H-1 to H-n are connected to a WAN (Wide Area Network), a LAN (Local Area Network), or the like. Communication is performed with the host server 200 via the network NW. This communication is performed bidirectionally, for example. The customer facilities H-1 to H-n include, for example, a detached house, an apartment house such as a condominium, other residences, a business office, a factory, a commercial facility, and the like.
Each customer facility H-1 to Hn is provided with storage battery systems 30-1 to 30-n that communicate with the operation terminals 10-1 to 10-n, respectively. The storage battery systems 30-1 to 30-n include, for example, secondary batteries such as lithium ion batteries, lead storage batteries, and nickel metal hydride batteries.

  The consumer facilities H-1 to Hn may further include a solar power generation system SP. Hereinafter, when the customer facilities H-1 to H-n, the operation terminals 10-1 to 10-n, and the storage battery systems 30-1 to 30-n are not particularly distinguished, they are simply referred to as “customer facility H”, “ The operation terminal 10 ”and the“ storage battery system 30 ”are described.

The power management system of the present embodiment targets power management for a certain area (power management area) shown as a power management area in FIG. 1 or electric equipment provided for each of a plurality of customer facilities H in a power management community. I do.
The customer facility H corresponds to, for example, a house, a commercial facility, or an industrial facility. In addition, the power management area may correspond to, for example, one or a plurality of apartment houses, and each of the customer facilities H may be each house in the apartment house.

  Moreover, as long as the position of each consumer facility H is configured to be managed by the power management system, it is not necessarily limited to the same area as other consumer facilities that are similarly managed. That is, if the power management system is registered as a customer facility H under its management and can transmit and receive information managed using the network NW described later, different regions (for example, Hokkaido, Honshu, Kyushu, It may be an aggregate of a plurality of customer facilities H registered in each region such as Shikoku. In this case, a common system power supply (not shown) is a community that is an aggregate of power supply lines in an area connected to each of the customer facilities H.

  The plurality of customer facilities H in the power management area shown in FIG. 1 includes customer facilities H including solar cells that are power generation devices that generate power using renewable energy. Moreover, in the some customer facility H in an electric power management area, the customer facility H provided with a storage battery is included as one of the electrical equipment. Among such customer facilities H, there may be a customer facility H provided with both a solar battery and a storage battery, and a demand provided with either one of the solar battery system SP and the storage battery system 30 (storage battery). There may be a home facility H.

Commercial power is branched and supplied to each customer facility H in the power management area by being connected to a common system power supply. Each customer facility H can supply the power supplied from the system power supply to the load. Thereby, various electric facilities (equipment) as a load are operated.
Further, the customer facility H including the solar battery SP can output (reverse flow) the generated power of the solar battery or the stored power of the storage battery to the system power supply.
Moreover, in the customer facility H provided with the storage battery system 30, it can be made to store (charge) a storage battery by receiving electric power supply from a system power supply. Moreover, in the consumer facility H provided with a storage battery and a solar cell, not only can it receive electric power supply from a system power supply and store it in a storage battery, but it can charge the storage battery with the generated power of the solar cell.

In the power management system of the present embodiment, a host server 200 is provided.
The host server 200 executes power control for the electrical equipment in each customer facility H belonging to the power management area. For this purpose, the upper server 200 in FIG. 1 is connected so as to be able to communicate with each of the customer facilities H via the network NW. Thereby, the host server 200 can control the electrical equipment in each customer facility H.
The upper server 200 receives various types of information from a power information provider 300 described later, and transmits information corresponding to the information to the operation terminal 10. Further, the upper server 200 transmits various information transmitted from the operation terminal 10 to the power information provider 300.

  The power information provider 300 is, for example, a power provider or a power company. The power information provider 300 causes the power usage fee to fluctuate according to time (hereinafter referred to as “power fee”), the generated power and the consumed power for each customer facility H, and reverse power flow. Demand for requesting demand, demand for requesting an increase or decrease in demand power used by the customer facility H (also referred to as “demand information”), and information on solar radiation (hereinafter “sunlight information”). Or the like) to the upper server 200. The demand information in the present embodiment is mainly a demand for requesting reverse power flow, and includes demand power amount that is the amount of power to be reverse flowed, and time information of the start time and the end time of reverse flow of demand power. In other words, the request is set to start after a certain period from the time when the host server 200 receives the demand information. Further, there is no need for one power information provider. For example, the “sunlight information” may be a provider that specializes in weather information distribution, and the distribution of electricity charges and the distribution of demand are different. It may be a provider. The status of power demand can also be received from a provider that collects and distributes power meter information as a specialty, rather than being delivered from a power company.

FIG. 2 is a diagram illustrating a configuration example of equipment in the customer facility H according to the first embodiment. Broken and solid arrows in the figure represent a communication line and a power line, respectively.
In the customer facility H, in addition to the operation terminal 10, the storage battery system 30, and the solar power generation system SP described above, for example, the power between the distribution board 50, the customer facility H, and the system power supply power CP Power meter 70 for measuring the power consumption, and demand equipment 60 such as home appliances or factory equipment. The demand facility 60 is supplied with electric power discharged by the storage battery system 30, electric power generated by the solar power generation system SP, and electric power of the system power supply power CP via the distribution board 50.

  FIG. 3 is a diagram illustrating a configuration example of the operation terminal 10 according to the first embodiment. The operation terminal 10 includes a first communication unit 14 connected to the first communication interface 12, a control unit 16, a second communication unit 18 connected to the second communication interface 20, and a storage unit 22 in an internal bus IB. It is connected so that it can communicate via. The control unit 16 is, for example, a processor such as a CPU (Central Processing Unit). The storage unit 22 includes a storage device such as a random access memory (RAM), a flash memory, and a hard disk drive (HDD).

  The first communication interface 12 is an interface for communicating with the host server 200 via the network NW, and the second communication interface 20 is an interface for communicating with equipment in the customer facility H. The second communication interface 20 is connected to a user interface such as a touch panel that includes both an input unit that receives user input and a display unit that displays various types of information to the user.

  The first communication unit 14 transmits / receives various information to / from the host server 200 via the first communication interface 12, and the second communication unit 18 communicates with the equipment in the customer facility H via the second communication interface 20. Send and receive information. The first communication unit 14 and the second communication unit 18 store the received information in the storage unit 22. Note that these communication units may be integrated functional units having both functions.

  The control unit 16 controls the display screen to be displayed to the user via the second communication interface 20 based on the information received by the first communication unit 14 and the second communication unit 18. The control unit 16 is an example of a “selection unit”. In addition, the control part 16 may receive the instruction | indication by a voice etc. from a user instead of operation of a display screen, button input, etc. Moreover, the control part 16 may notify the information on a display screen with an audio | voice etc. instead of making a user display a display screen.

FIG. 4 is a diagram illustrating an example of a display screen. On the display screen, for example, the current time, a selection item as to whether or not to accept a demand for providing a shared amount of electric power preset in the storage battery system 30 as a distributed storage battery, such as “provide common part?” Includes the time to start providing the shared power amount, the time to end the supply of the shared power amount, and the name of the demand that indicates the provision of the shared power amount of the storage battery system 30 such as “storage battery power supply” .
For example, when the demand for requesting the provision of the shared power amount of the storage battery system 30 is received by the first communication unit 14, the control unit 16 displays a display screen of “storage battery power supply”. In this display screen, as an initial state, a selection item is set in advance for selection of “Yes” in the sense of accepting demand. In this way, by displaying the state in which the demand is accepted in the initial state, this screen is displayed in a manner in which an operation for accepting the demand is guided. As a result, the power management system 1 guides the user in the direction of accepting the demand, and contributes to satisfying the power with respect to the shortage of power in the power management area or the shortage of power outside the power management area. be able to. The initial state may be set in advance so that either “Yes” or “No” can be selected, or both “Yes” and “No” can be selected in advance. You may set it.

The control unit 16 controls the display screen to be displayed at the time when the demand information is received from the host server 200, and continues to be displayed until the time when the demand ends. When the selection item is changed by the user during a period from the time when the display screen is started to the time when the demand is started, the control unit 16 determines that the demand is not accepted.
As a result, the power management system 1 causes the user to operate the storage battery system 30 based on the storage battery operation plan LN created by the host server 200 described later.

  Moreover, the control part 16 determines with the said demand having been accepted, when a selection item is not changed by the user in the period from the time which started displaying the display screen to the time which starts a demand. As a result, the power management system 1 causes the user to use power based on a power storage plan LN2 described later. In other words, the user uses power based on the accepted demand.

  The control unit 16 controls other facilities in the customer facility H such as the photovoltaic power generation system SP and the demand facility 60 while controlling the storage battery system 30 based on the power storage plan created by the host server 200. For example, the control unit 16 operates the storage battery system 30 based on the power storage plan, and performs control so that other equipment consumes (generates power) the amount of power that has fluctuated due to this operation.

  Based on the storage plan, the control unit 16 discharges the storage battery system 30 when, for example, the electricity bill is high or the demand for requesting power saving is accepted, and surplus power generated by the discharge is supplied to the demand facility 60. Control each facility to supply. At this time, it is preferable that the control unit 16 controls the operation of the demand facility 60 so that the amount of power consumed by the demand facility 60 is reduced. For example, the control unit 16 changes settings such as the air volume and temperature of the air conditioner and stops the lighting device.

  Further, the control unit 16 controls the storage battery system 30 to be charged based on the power storage plan, for example, when the electricity bill is low or when a demand for requesting positive use of power is accepted. Thereby, when the electricity bill is high or the demand for requesting power saving is accepted, the user can reduce the amount of power demand by using the power stored in the storage battery system 30.

  Moreover, the control part 16 may control a display screen so that the change of a selection item may be received in the period from the start to the end of a demand. In the power management system 1, for example, the selection item is changed to “No” by the user before the demand is started, and the selection item is changed to “Yes” in the period from the start to the end of the demand. In this case, even if the shared power amount has not been reached, the storage battery system 30 is not discharged during the period from the changed time to the time when the demand is terminated.

  In addition, the control unit 16 controls the storage unit 22 so that the state of the selection item is maintained until the demand ends. Moreover, the control part 16 is controlled to reset the selection item changed by the user to an initial state after a demand is complete | finished.

  Moreover, the control part 16 may have a means to notify the information which shows the acceptance or non-acceptance of the demand selected by the user to the electric power information provider 300 which is a transmission source of demand information. As a result, the power information provider 300 can derive a more accurate supply amount of the reversely flowed power, and can more accurately grasp the degree of tightness of the demand power with respect to the supplied power.

  FIG. 5 is a diagram illustrating a configuration example of the upper server 200 according to the first embodiment. The host server 200 includes, for example, a transmission unit 210, a reception unit 212, a demand processing unit 214, a power storage plan derivation unit 216, a transmission information storage unit 220, a reception information storage unit 230, and a facility information storage unit 240. Is provided. The demand processing unit 214 and the power storage plan deriving unit 216 are, for example, a processor such as a CPU (Central Processing Unit). The transmission information storage unit 220, the reception information storage unit 230, and the facility information storage unit 240 include storage devices such as a RAM (Random Access Memory), a flash memory, and an HDD (Hard Disk Drive). Hereinafter, each storage unit will be described first.

  The transmission information storage unit 220 stores information including plan information 221, power generation prediction 222, and demand prediction 223. The plan information 221 is information referred to when the customer facility H uses power. In the power management system 1 of the present embodiment, the use of power at the customer facility H is performed based on plan information 221 including a power storage plan that is a plan for charging and discharging power to the storage battery system 30.

  Moreover, the power generation prediction 222 is information indicating the generated power at a predetermined time (for example, 30 minutes) of the solar power generation system SP calculated in advance. Further, the demand prediction 223 is information indicating power that is expected to be consumed at a predetermined time in the customer facility H.

  The reception information storage unit 230 stores information including demand information 231, power charges 232, generated power 233, power consumption 234, surplus power 235, and storage battery management table 236. The generated power 233 and the power consumption 234 respectively indicate the power generation amount of the solar power generation system SP every predetermined time (for example, 30 minutes of demand time limit) and the power consumed at the customer facility H every predetermined time. Information. The demand information 231 includes a demand for requesting power supply, that is, a demand for requesting reverse flow of power (power of a demand power amount described later) to the system power supply. The demand information 231 is supplied at a timing before the stage where the power storage plan deriving unit 216 described later performs a process of generating a power storage plan. The demand information 231 also includes time information of a time range for supplying demand power.

  The surplus power 235 is calculated as information obtained by subtracting the power indicated by the power consumption 234 from the power indicated by the generated power 233, for example. For example, when the power consumption 234 is greater than or equal to the generated power 233 in a certain period, the surplus power 235 is calculated as zero or a negative value in the period. That is, the surplus power 235 in the period is stored in the reception information storage unit 230 as information indicating that there is no surplus power when the power consumption 234 is greater than or equal to the generated power 233. On the other hand, the surplus power 235 in the period is stored in the reception information storage unit 230 as information indicating that there is surplus power when the power consumption 234 is less than the generated power 233.

  The storage battery management table shows the maximum of the storage battery system 30 of the customer facility H indicated by the customer facility identification information together with the customer facility identification information of each customer facility H belonging to the power management area where the host server 200 performs power management. A shared use ratio (or shared power amount) with respect to stored power (SOC (State Of Charge) 100%) and a request availability flag indicating whether or not a demand request of the customer facility H indicated by the customer facility identification information is stored. Has been.

  FIG. 6 is a diagram illustrating a configuration of a storage battery management table stored in the reception information storage unit 230. In FIG. 6, the storage battery management table includes, for each customer facility H, customer facility identification information for identifying the customer facility H, a shared use ratio of the customer facility indicated by the customer facility identification information, and request availability. The flags are written and stored in the reception information storage unit 230 as a set. The shared use ratio can be arbitrarily changed for each customer facility. The request availability flag is a flag indicating whether or not a demand for requesting power supply (reverse power flow) from the host server 200 is received or not. In this case, a flag indicating NO is written by the receiving unit 212.

  FIG. 7 is a diagram for explaining the shared usage ratio. In FIG. 7, as an example, a case where the shared use ratio is 0.4 and the private use ratio is 0.6 is shown. That is, when the shared usage ratio is 0.4, 40% of the maximum stored power of the storage battery system 30 (the battery capacity of the storage battery system 30 and the maximum stored power) is shared in the power management area. This shows that 60% of the maximum stored power of the remaining storage battery system 30 is used as the amount of power for private use.

  Returning to FIG. 1, the facility information storage unit 240 stores information including the storage facility information 241 and the power generation facility information 242 as the definition of the storage battery. The storage facility information 241 includes a storage battery capacity (maximum stored power, kWh), an upper limit SOC (upper limit charge rate), a lower limit SOC (lower limit charge rate), and a charge loss (% ), Information indicating specifications such as discharge loss (%), maximum discharge power (kW), which is a loss during discharge power, is included.

  The power generation facility information 242 includes information indicating specifications such as inverter capacity (kW), conversion efficiency (%), power generation area (m2), longitude, latitude, and installation angle as the definition of the power generation facility in the solar power generation system SP. Is included. The inverter capacity indicates the maximum capacity of power that can be output from the inverter. The power generation area indicates the area of the surface that absorbs the light energy of the solar cell. The longitude and latitude are position information indicating the position where the solar power generation system is installed. The installation angle indicates the direction in which the surface that absorbs the light energy of the solar cell faces.

  Further, as the demand facility information, when the customer facility H is a general household or a commercial facility, the air conditioner, electric water heater, IH (Induction Heating) heater, microwave oven, washing machine, vacuum cleaner, lighting, etc. of the demand facility 60 Information indicating power consumption is also written and stored in the facility information storage unit 240. Further, as the demand facility information, when the customer facility H is a factory, a business office or the like, information indicating the power consumption of the air conditioning facility, the production facility, and the lighting is also written and stored in the facility information storage unit 240.

FIG. 8 is a diagram illustrating information on various facilities stored in the facility information storage unit 240. This facility information is written and stored in the facility information storage unit 240 together with the customer facility identification information for each customer facility H.
Fig.8 (a) has shown the structural example of the electrical storage installation information 241 which shows the definition of the storage battery as an installation. As the definition of the storage battery, the battery capacity is 12 kWh, the upper limit SOC is 100%, the lower limit SOC is 0%, the charge loss is 10%, the discharge loss is 10%, and the maximum discharge power is 3 kW. The battery capacity indicates the maximum amount of stored power that the storage battery system 30 can store. The upper limit SOC indicates the maximum charging rate at which the battery capacity can be stored. The lower limit SOC indicates the lowest charging rate at which the battery capacity can be discharged. The charging loss indicates the ratio of the amount of power lost when charging the storage battery from the total amount of power used for charging.
The discharge loss indicates the ratio of the amount of power lost when discharging from the total amount of power discharged from the storage battery. The maximum discharge power indicates the amount of power that can be discharged from the storage battery per unit time.

  FIG. 8B shows a configuration example of the power generation facility information 242 indicating the definition of the photovoltaic power generation system as the facility. As a definition of the solar power generation system, an inverter capacity of 6 kW, a conversion efficiency of 15%, a power generation area of 20 m2, a longitude of xxx, a latitude of xxx, and an installation angle of xxx are shown. The inverter capacity indicates the maximum capacity of power that can be output from the inverter. The conversion efficiency indicates the efficiency of converting light energy applied to the solar cell into electric energy. The power generation area indicates the area of the surface that absorbs the light energy of the solar cell. The longitude and latitude are position information indicating the position where the solar power generation system is installed. The installation angle indicates the direction in which the surface that absorbs the light energy of the solar cell faces.

  Returning to FIG. 1, the transmission unit 210 transmits the information stored in the transmission information storage unit 220 to the operation terminal 10 and the power information provider 300 of each customer facility H. The reception unit 212 receives information transmitted from the operation terminal 10 and the power information provider 300 and stores the information in the reception information storage unit 230.

For example, the demand processing unit 214 calculates the power generation prediction 222 based on the solar radiation information and the power generation facility information 242 acquired in advance. Similarly, the demand processing unit 214 calculates, for example, the power consumed in each customer facility H every predetermined time in the past week, and calculates the average value of the calculated power as the demand prediction 223.
In addition, the demand processing unit 214 uses the demand power amount that is demand information 231 transmitted from the power information provider 300 as a power supply (reverse power flow to the system power source), and the consumer provided with the power storage location 30. A process of distributing to the facility H is performed.

  Here, the demand processing unit 214 refers to the storage battery management table 236 of the reception information storage unit 230 and the storage facility information 241 of the facility information storage unit 240, and distributes the demand power amount and the distribution amount that is the amount of power to be distributed. Calculate the amount of demand electricity. That is, the demand processing unit 214 reads the customer facility identification information of the customer facility H that has accepted the provision of the shared power amount for which the availability flag in the storage battery management table 236 of the reception information storage unit 230 is allowed. The customer facility H as a distribution destination of demand electric energy is detected.

  The demand processing unit 214 reads each shared usage ratio of the detected customer facility H from the storage battery management table 236 of the reception information storage unit 230. Further, the demand processing unit 214 reads the detected battery capacity of the storage battery system 30 of the customer facility H from the power storage facility information of the facility information storage unit 240. As a result, the demand processing unit 214 multiplies the battery capacity and the shared usage ratio for each consumer facility H, and obtains the shared power amount for each consumer facility H that allows reverse flow. The demand processing unit 214 calculates the amount of power that can be provided by integrating the amount of power shared by all the customer facilities H that allows reverse power flow.

  Then, the demand processing unit 214 divides the shared power amount of the customer facility H by the suppliable power amount, and obtains the provable power amount ratio of each customer facility H as a division result. The demand processing unit 214 compares the amount of power that can be provided and the amount of demand power, and if the amount of power that can be provided is equal to or greater than the amount of demand power, obtains the distribution demand power amount of each customer facility H. In other words, the demand processing unit 214 multiplies the demand power amount by the obtained power amount ratio of each customer facility H, and obtains the distribution demand power amount of each customer facility H as a multiplication result.

  On the other hand, the demand processing unit 214 compares the available power amount with the demand power amount, and when the available power amount is less than the demand power amount, information indicating that the entire demand power amount cannot be supplied; Transmittable power amount that is the amount of power that can be supplied is transmitted from transmission section 210 to power information provider 300. Then, when the power information provider 300 requests the provision of the amount of power that can be provided via the reception unit 212, the demand processing unit 214 can provide the ratio of the amount of power that can be provided for each customer facility H that is obtained. The power amount is multiplied and the distribution demand power amount of each customer facility H is obtained as a multiplication result.

  The power storage plan deriving unit 216 is based on the plan derivation information of the power rate 232 and the power generation forecast 222 and the demand forecast 223 calculated by the demand processing unit 214 for each of the customer facilities H that rejects reverse power flow. To derive a storage plan. In addition, the power storage plan deriving unit 216, for each customer facility H that allows reverse power flow, the distributed demand power amount, the time for reverse flow of the distributed demand power amount, the power rate 232, A power storage plan is derived based on the plan derivation information of the power generation prediction 222 and the demand prediction 223 calculated by the demand processing unit 214. At this time, the power storage plan deriving unit 216 adds the allocated demand power amount to the demand prediction 223 in the time of reverse flow, obtains the demand prediction 223 including the distributed demand power amount, and derives the power storage plan. . This power storage plan is determined for each predetermined time whether the storage battery system 30 performs charge / discharge or stops. Hereinafter, a method for deriving a power storage plan will be described with reference to the drawings.

  FIG. 9 is a diagram showing a shared usage ratio (%) and a private usage ratio (%) of the storage battery system 30 in each customer facility H. For example, the case where there is a customer facility H including ten storage battery systems 30 from the customer facility H-1 to the customer facility H-10 is shown in the power management area where the host server 200 performs power management. In each of the customer facilities H-1 to the customer facilities H-10, a shared use ratio and a private use ratio with respect to the battery capacity of the storage battery system 30 are set by each customer facility H.

FIG. 10 is a diagram illustrating an example of a charge level table that is the power charge 232. In the fee level table, the time zone, the fee for the time zone, and the fee level indicating the fee level are written and stored in the transmission information storage unit 220 in association with each other. In the present embodiment, the charge level is defined such that the charge level increases as the electricity charge increases.
As the power charge 232, for example, a charge level corresponding to the charge is set. The charge level of this embodiment is set to 0 if it is 10 (yen / kW) or less, set to 1 if it is 10-15 (yen / kW), and set to 15-20 (yen / kW), 2 and set to 3 in the case of 20-30 (yen / kW). The setting of these charge levels may be performed in advance on the power information provider 300 side or on the upper server 200 side (demand processing unit 214, power storage plan deriving unit 216).

  FIG. 11 is a diagram illustrating a normal power storage plan LN derived by the power storage plan deriving unit 216 for the customer facility H. The normal state shows a state where the power storage plan including the distribution demand electric energy of the reverse power flow is not performed. In FIG. 11, the horizontal axis indicates time, the left vertical axis indicates the SOC of the storage battery system 30, and the right vertical axis indicates the reverse flow power amount (distributed demand power amount). As described above, since the reverse power flow is not performed, the current amount of the reverse power flow is 0 kW. Further, FIG. 11 is a diagram showing a state of derivation of a power storage plan when demand power supply is requested and the customer facility H rejects the power supply. The power storage plan deriving unit 216 creates a power storage plan by the following processing.

  The power storage plan deriving unit 216 assigns whether or not to charge / discharge the storage battery system 30 every predetermined time. First, the power storage plan deriving unit 216 allocates discharge to the storage battery system 30 so that discharge is preferentially performed during a period in which the maximum charge level (level 3) is set. Next, the power storage plan deriving unit 216 is charged when the SOC of the storage battery is equal to or higher than the threshold (0%) in the period in which the charge level (level 0) one level below the lowest charge level is set. Is assigned to charge the storage battery system 30. Hereinafter, the power storage plan deriving unit 216 repeats the above-described processing until the time in one day is over.

  In the example shown in FIG. 11, the power storage plan deriving unit 216 performs charging in the period from 23:00 when the charge level is 0 to 3 o'clock on the next day, and sets the SOC of the storage battery system 30 to 100. In the period from 10:00 to 22:00 when the charge level is 3, a plan for discharging the storage battery system 30 with a predetermined discharge amount is generated. Thereby, by discharging in a time zone when the electricity rate is high, the amount of electricity due to power purchase from the system power source is reduced, and the substantial electricity rate is lowered, thereby producing an economic effect. In FIG. 11, the power consumption is shown as being constant.

  However, the power storage plan deriving unit 216 generates a power storage plan by predicting the amount of stored power (SOC) of the storage battery system 30 based on the demand prediction and the power generation prediction. Here, in the power storage plan, the SOC is 30% at 22:00 when the discharge ends. This is because each customer facility H pre-sets the lower limit SOC for emergency use such as a power failure, that is, the SOC setting value for stopping the discharge from the storage battery system 30 when generating a power storage plan in advance. It may be configured. When the emergency SOC is set, a power storage plan is generated in which the discharge is stopped when the SOC reaches the emergency set value. On the other hand, when the emergency SOC is not set, a power storage plan is generated in which the SOC is discharged to 0%. Then, after deriving the power storage plan LN of the storage battery system 30 described above, the power storage plan deriving unit 216 writes the power storage plan LN as the plan information 221 and stores it in the transmission information storage unit 220.

  FIG. 12 is a diagram showing an emergency power storage plan LN derived by the power storage plan deriving unit 216 for the customer facility H. In an emergency, it shows a state where a power storage plan including the distribution demand electric energy of reverse power flow is being performed. In FIG. 12, the horizontal axis indicates time, the left vertical axis indicates the SOC of the storage battery system 30, and the right vertical axis indicates the reverse flow power amount (distributed demand power amount). As described above, since reverse power flow is performed, the amount of current is 2 kW from the reverse power flow curve LO from 10:00 to 12:00. Further, FIG. 12 is a diagram showing a state of derivation of the power storage plan when demand power supply is requested and the customer facility H allows the power supply. The power storage plan deriving unit 216 creates a power storage plan by the following processing.

When the demand is accepted by the user of the customer facility H, the power storage plan deriving unit 216 performs the following processing.
The power storage plan deriving unit 216 causes the storage battery system 30 to discharge during the period from 6 o'clock to 22 o'clock because the charge level is higher than the lowest late night charge (charge level 0) from 6 o'clock to 22 o'clock. Generate a plan. The power storage plan deriving unit 216 refers to the charge table of the power charge 232 in the reception information storage unit 230 and generates a power storage plan from the allocated demand power amount and the time for supplying the distributed demand power amount. The time for supplying the distribution demand power amount is from 10:00 to 12:00. However, if the supply amount is 2 kW for 2 hours, the supply power amount is 4 kWh, and 4 kWh is supplied as the distribution demand power amount.

  Since the shared power amount in this customer facility H is 4 kWh, the reverse power flow is terminated at 12:00. Demand power supplied between 12:00 and 13:00 is distributed to other customer facilities H. In FIG. 12, since the maximum discharge power of the storage battery system 30 of the customer facility H is 3 kW, 1 kW minus the reverse power flow to the system power supply is its own demand power. In the power storage plan, the distributed demand power amount that reversely flows to the system power supply is added to the power demand. A power storage plan is generated by the power storage plan deriving unit 216 so that the demand power including the distribution demand power amount falls within the range of the maximum discharge power.

Then, after deriving the power storage plan LN of the storage battery system 30 described above, the power storage plan deriving unit 216 writes the power storage plan LN as the plan information 221 and stores it in the transmission information storage unit 220.
Here, in the power storage plan, the SOC is 20% at 22:00 when the discharge ends. As shown in FIG. 11, this may be configured to be set for each customer facility H in advance in order to generate an electricity storage plan in advance as an emergency for power outages or the like.

  FIG. 13 is a diagram illustrating an emergency power storage plan LN derived by the power storage plan deriving unit 216 for other customer facilities H. In an emergency, it shows a state where a power storage plan including the distribution demand electric energy of reverse power flow is being performed. In FIG. 13, the horizontal axis represents time, the left vertical axis represents the SOC of the storage battery system 30, and the right vertical axis represents the reverse flow power amount (distributed demand power amount). As described above, since the reverse power flow is performed, the amount of current is 2 kW from the reverse power flow curve LO from 10:00 to 13:00. Further, FIG. 13 is a diagram showing a state of derivation of the power storage plan when demand power supply is requested and the customer facility H allows the power supply. The power storage plan deriving unit 216 creates a power storage plan by the following processing.

When the demand is accepted by the user of the customer facility H, the power storage plan deriving unit 216 performs the following processing.
The storage plan deriving unit 216 causes the storage battery system 30 to discharge during the period from 6:00 to 15:00 because the charge level is higher than the lowest charge (charge level 0) from 6:00 to 15:00. Generate a plan. The power storage plan deriving unit 216 refers to the charge table of the power charge 232 in the reception information storage unit 230 and generates a power storage plan from the allocated demand power amount and the time for supplying the distributed demand power amount. The time for supplying the distribution demand power amount is from 10:00 to 13:00, but if the supply is performed at 2 kW for 3 hours, the supply power amount is 6 kWh, which means that 6 kWh is supplied as the distribution demand power amount.

  Since the amount of shared power in this customer facility H is 6 kWh, the reverse power flow ends at 13:00. From 13:00 to 14:00, the discharge is performed only as the amount of electric power of its own demand. In this FIG. 13, since the maximum discharge power of the storage battery system 30 of the customer facility H is 3 kW, 1 kW obtained by subtracting 2 kW of the reverse power flow to the system power supply is its own demand power. In the power storage plan, the distributed demand power amount that reversely flows to the system power supply is added to the power demand. A power storage plan is generated by the power storage plan deriving unit 216 so that the demand power including the distribution demand power amount falls within the range of the maximum discharge power.

Then, after deriving the power storage plan LN of the storage battery system 30 described above, the power storage plan deriving unit 216 writes the power storage plan LN as the plan information 221 and stores it in the transmission information storage unit 220.
Here, in the power storage plan, the SOC is 20% at 22:00 when the discharge ends. As shown in FIG. 11, this may be configured to be set for each customer facility H in advance in order to generate an electricity storage plan in advance as an emergency for power outages or the like.

FIG. 14 is a flowchart illustrating an example of processing performed by the power management system 1 according to the first embodiment. This flowchart is executed at a time prior to the execution of the power storage plan, such as the day before the power storage plan is executed, and the power storage plan is generated.
Step S1:
For example, the demand processing unit 214 calculates the power generation prediction 222 based on the solar radiation information and the power generation facility information 242 acquired in advance. For example, the demand processing unit 214 calculates the power consumed in each customer facility H every predetermined time within the past week, and calculates the average value of the calculated power as the demand prediction 223.

Step S2:
The demand processing unit 214 refers to the reception information storage unit 230 and determines whether or not demand information has been input. At this time, when there is input of demand information, the demand processing unit 214 advances the process to step S3. On the other hand, when there is no input of demand information, the demand processing unit 214 advances the process to step S9.

Step S3:
The demand processing unit 214 reads the demand information 231 from the reception information storage unit 230. The demand information 231 includes information on a demand power amount and a time zone for supplying the demand power amount.

Step S4:
The demand processing unit 214 refers to the storage battery management table 236 of the reception information storage unit 230, and obtains the customer facility identification information of the customer facility H that has accepted the provision of the shared power amount for which the availability flag is allowed. Extract. Then, the demand processing unit 214 sets the extracted customer facility H as a distribution destination of the demand power amount.

Step S5:
The demand processing unit 214 reads each shared usage ratio of the detected customer facility H from the storage battery management table 236 of the received information storage unit 230 and detects the detected demand from the storage facility information of the facility information storage unit 240. The battery capacity of the storage battery system 30 of the house facility H is read out.
Then, the demand processing unit 214 multiplies the battery capacity and the shared usage ratio for each consumer facility H, obtains a shared power amount for each consumer facility H that allows reverse power flow, and enables reverse power flow. The amount of power that can be provided is obtained by integrating the amount of power shared by all customer facilities H.

Step S6:
The demand processing unit 214 subtracts the demand power amount from the available power amount to obtain a difference. In other words, the demand processing unit 214 compares the amount of power that can be provided and the amount of power that is demanded.

Step S7:
The demand processing unit 214 determines whether or not the difference is 0 or more. At this time, if the difference is 0 or more, the demand processing unit 214 advances the process to step S8. On the other hand, if the difference is less than 0, the demand processing unit 214 advances the process to step S11.

Step S8:
The demand processing unit 214 divides the shared power amount of the customer facility H by the available power amount, and obtains the available power amount ratio of each customer facility H as a division result.
Then, when the difference is equal to or greater than 0, the demand processing unit 214 multiplies the demand power amount by the obtained power amount ratio of each consumer facility H, and as a result of multiplication, Find the energy demand per minute. The demand processing unit 214 adds the obtained allocated demand power amount to the demand forecast 223 for the corresponding time in the demand forecast to obtain a new demand forecast.

Step S9:
The power storage plan deriving unit 216 is based on the plan derivation information of the power rate 232 and the power generation forecast 222 and the demand forecast 223 calculated by the information processing unit 214 for each of the customer facilities H that rejects reverse power flow. To derive a storage plan.
Then, the power storage plan deriving unit 216 writes and stores the obtained power storage plan as the plan information 221 in the transmission information storage unit 220. The plan information 221 includes a time during which the power corresponding to the allocated demand power amount is reversely flowed.

Step S10:
The transmission unit 210 transmits the plan information 221 to each customer facility H at a predetermined time set in advance.
The control unit 16 of each customer facility H performs charge / discharge control of the storage battery system 30 based on the plan information 221, and reversely flows power corresponding to the distributed demand power amount to the system power supply during the time of reverse flow. Let

Step S11:
When the difference is less than 0, the demand processing unit 214 provides the power information from the transmission unit 210 with information indicating that it is not possible to supply all of the demand power amount and the available power amount that can be supplied. To the person 300.
Then, the demand processing unit 214 confirms the presence or absence of a reply that needs to be provided from the power information supplier 300 for the transmission described above. At this time, if there is a reply that the power information provider 300 needs to provide from the power information provider 300, the demand processing unit 214 advances the process to step S12.
On the other hand, if there is no answer that the power information provider 300 needs to provide, the demand processing unit 214 advances the process to step S9.

Step S12:
The demand processing unit 214 divides the shared power amount of the customer facility H by the available power amount, and obtains the available power amount ratio of each customer facility H as a division result.
Then, the demand processing unit 214 multiplies the obtainable power amount ratio of each obtained customer facility H by the available power amount, and obtains the distribution demand power amount of each customer facility H as a multiplication result. . The demand processing unit 214 adds the obtained allocated demand power amount to the demand forecast 223 for the corresponding time in the demand forecast to obtain a new demand forecast.

  With the configuration described above, the present embodiment responds to the demand request even if the shared usage ratio for providing the shared power amount (distributed storage battery) shared in the power management area (community) is set. Since it is possible to set whether or not for each customer facility, it is possible to easily select whether or not to provide the shared power amount for the convenience of the customer facility itself. Thereby, according to this embodiment, even if it was in the state of providing a part of the battery capacity of its own storage battery as a shared power amount in the power management area as a distributed storage battery, it responded to its own demand as needed. A storage plan for charging / discharging the storage battery system 30 can be obtained.

<Second Embodiment>
Hereinafter, the power management system 1A of the second embodiment will be described. The power management system 1A of the second embodiment is different from the first embodiment in that the host server 200 derives the demand information independently instead of the demand information transmitted from the power information provider 300.
Therefore, the configuration and operation of the second embodiment will be described with a focus on the differences, and descriptions of common parts will be omitted.

  FIG. 15 is a diagram illustrating a configuration example of a power management system 1A according to the second embodiment. The host server 200 acquires generated power and power consumption from the operation terminal 10 of each customer facility H. Further, the upper server 200 acquires the power rate and solar radiation information stored in another storage device via the network NW. This power charge is, for example, a power charge of a power provider in another area that has not contracted with the customer facility H. Moreover, solar radiation information is information contained in the weather information scattered on the Internet, for example. Further, the upper server 200, based on the information on the power disclosed by the power company (for example, tight information on power supply and demand, etc.), the amount of demand power to flow backward to the system power supply and the time to reversely flow the demand power amount to the system power supply Demand information including

  FIG. 16 is a diagram illustrating a configuration example of equipment in the customer facility H according to the second embodiment. Each customer facility H is provided with a power monitor 90. The power monitor 90 monitors the power supplied to the distribution board 50.

  FIG. 17 is a diagram illustrating a configuration example of the operation terminal 10 according to the second embodiment. The operation terminal 10 in this embodiment includes a power collection unit 24. For example, the second communication unit 18 includes information on the power supplied to the distribution board 50 monitored (measured) by the power monitor 90 and the power supplied from the system power supply power CP measured by the power meter 70. And received via the second communication interface 20. The power collection unit 24 calculates the generated power and the power consumption of the customer facility H based on the information on the power received by the second communication unit 18. Thereby, the power management system 1 of the second embodiment can derive the power storage plan without obtaining the plan derivation information from the power information provider 300. As a result, the power management system 1 of the second embodiment can improve the convenience for the user as in the first embodiment described above.

Other embodiments (modifications) will be described below.
The control unit 16 may display a display screen including items whose initial state can be changed. As a result, the selection items set in advance can be changed as desired by the user. For example, the user may change the initial state of the selection item to “No (not accepted)”. Thereby, the power management system 1 can perform power management according to the usage state of the user.

  Further, the control unit 16 may perform control so that the setting of the selection item is held until the demand is received a predetermined number of times (for example, three times) from the demand. Further, the control unit 16 may perform control so that the setting of the selection item is held for a user-specified period (for example, one month).

Moreover, the control part 16 may control so that information, such as a mail and a web page, may be transmitted, when the 2nd communication interface 20 is connected with a smart phone, a personal computer, etc.
Information in this case includes demand such as “Please supply power by reverse power flow to the system power supply”, “Electricity charges will increase from 12:00”, “Let's save electricity until 13:00”, etc. A sentence that encourages the use of electric power according to the situation is included. Further, whether or not to accept the demand is preferably performed by replying to the mail or clicking a selection item in the web page. Further, the control unit 16 may notify the demand by blinking light by a light emitting diode or the like, an alarm sound by a speaker, or the like. In this case, it is preferable to notify the demand with a light color or tone color according to the type of demand (increase or decrease).

  With the configuration described above, the present embodiment responds to the demand request even if the shared usage ratio for providing the shared power amount (distributed storage battery) shared in the power management area (community) is set. Since it is possible to set whether or not for each customer facility, it is possible to easily select whether or not to provide the shared power amount for the convenience of the customer facility itself. Thereby, according to this embodiment, even if it was in the state of providing a part of the battery capacity of its own storage battery as a shared power amount in the power management area as a distributed storage battery, it responded to its own demand as needed. A storage plan for charging / discharging the storage battery system 30 can be obtained.

  Further, according to the present embodiment, the customer facility H, which is expected to have insufficient power in the power management area, outputs the insufficient power amount and time as a demand request to the host server 200 by the previous day. By doing so, it is possible for the host server to supply demand power to the customer facilities in the power management area in the form of reverse power flow from the shared power amount of each customer facility to the system power supply. Become.

  Further, a program for realizing the power management function of the power management apparatus 200 in FIG. 5 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed. Thus, charging and discharging of the storage battery may be managed. Here, the “computer system” includes an OS and hardware such as peripheral devices.

Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

Hereinafter, other configurations of the present invention will be described.
Another configuration of the present invention is a power management system that performs power management of a customer facility in a power management area that includes a plurality of customer facilities that are connected to a system power supply and have a storage battery as one of the electrical facilities, A shared usage ratio that is a ratio between the maximum storage capacity of the storage battery and a shared power amount provided as a shared power amount in the power management area, and a flag indicating whether the shared power amount is provided as shared And a storage unit storing a storage battery management table shown for each consumer facility, and referring to the storage battery management table, and based on each flag of the consumer facility, a reverse power flow can be made to the system power supply. And a demand processing unit for obtaining electric power.

  In another configuration of the present invention, the demand processing unit refers to the storage battery management table, the flag extracts a customer facility that allows provision of the shared power, and all the extracted demands The shared power amount of the home facility is added, and as a result of the addition, an available power amount that is a power amount that can be reversely flowed in the power management area is obtained.

  In another configuration of the present invention, the demand processing unit divides the shared power amount for each customer facility by the available power amount, and supplies the demand power to the customer facility when the division result is supplied. It is characterized by the ratio of available electric energy.

  In another configuration of the present invention, the demand processing unit compares the amount of power that can be provided and the amount of demand power, and when the amount of power that can be provided is equal to or greater than the amount of demand power, the power that can be provided for each of the customer facilities. When an amount ratio is multiplied by the demand power amount, and a distribution demand power amount that is a power amount that flows backward in each of the customer facilities is obtained as a multiplication result. On the other hand, when the available power amount is less than the demand power amount The provisionable power amount ratio of each of the consumer facilities is multiplied by the available power amount, and the distribution demand power amount of each of the consumer facilities is obtained as a multiplication result.

  Another configuration of the present invention further includes a power storage plan deriving unit that generates a power storage plan that is a plan for charging and discharging the storage battery of the customer facility from a demand prediction and a power generation prediction, and the power storage plan deriving unit includes the demand plan The distribution demand power amount is added to the prediction to generate the power storage plan.

  Another configuration of the present invention is characterized in that the power storage plan deriving unit generates a power storage plan that stops discharging the storage battery when the SOC reaches a preset value.

  Another configuration of the present invention is a power management method for performing power management of a customer facility in a power management area including a plurality of customer facilities provided with a storage battery as one of electrical facilities connected to a system power source, A shared usage ratio that is a ratio between the maximum storage capacity of the storage battery and a shared power amount provided as a shared power amount in the power management area, and a flag indicating whether the shared power amount is provided as shared And a demand processing step of referring to a storage battery management table shown for each consumer facility and obtaining power that can be reversely flowed to a system power supply based on the flag of each consumer facility. And

  Another configuration of the present invention is a computer that controls the operation of a power management system that performs power management of a customer facility in a power management area including a plurality of customer facilities that are connected to a system power supply and have a storage battery as one of the electrical facilities. A shared use ratio that is a ratio of a maximum storage capacity of the storage battery and a shared power amount provided as a shared power amount in the power management area, and the shared power amount The electric power that can be reversely flowed with respect to the system power supply based on the flag of each of the consumer facilities with reference to the storage battery management table indicated for each of the consumer facilities with a flag indicating whether or not to provide the common facility This is a program for functioning as a demand processing means for obtaining.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design and the like within a scope not departing from the gist of the present invention.

  DESCRIPTION OF SYMBOLS 1,1A ... Power management system, H, H-1 to Hn ... Customer facility, 10, 10-1 to 10-n ... Operation terminal, 12 ... 1st communication interface, 14 ... 1st communication part, 16 ... Control part, 18 ... 2nd communication part, 20 ... 2nd communication interface, 22 ... Memory | storage part, 30, 30-1-30-n ... Storage battery system, 50 ... Distribution board, 60 ... Demand equipment, 70 ... Electric power Meter, CP ... System power supply, SP ... Solar power generation system, NW ... Network, 200 ... Host server, 210 ... Transmission unit, 212 ... Reception unit, 214 ... Demand processing unit, 216 ... Power storage plan deriving unit, 220 ... Transmission Information storage unit 230 ... Reception information storage unit 240 ... Equipment information storage unit 300 ... Power information provider

Claims (6)

A power management system that performs power management in a power management assembly including a plurality of customer facilities equipped with storage batteries,
Providing a predetermined amount of electric power stored in the storage battery set for each consumer facility to other consumer facilities in the power management assembly depending on whether or not the user of the consumer facility is accepted. A power management system comprising a demand processing unit. A provision acceptance table in which a numerical value indicating the predetermined power amount set for each customer facility and an acceptance flag indicating whether or not to accept provision of the predetermined power amount are associated and stored; ,
The demand processing unit
2. The power management system according to claim 1, wherein it is determined whether or not the user has accepted the provision of the predetermined power amount with reference to the acceptance flag of the provision acceptance table. The power management system according to claim 2, wherein the acceptance flag can be arbitrarily changed by a user of the customer facility. Corresponding to each of whether or not to provide the predetermined power amount, if the predetermined power amount is included, or if the predetermined power amount is not included, a storage plan for each storage battery is determined for each customer facility. The power management system according to any one of claims 1 to 3, further comprising a power storage plan deriving unit derived from the power storage plan. A power management method for performing power management within a power management assembly including a plurality of customer facilities equipped with storage batteries,
Providing a predetermined amount of electric power stored in the storage battery set for each consumer facility to other consumer facilities in the power management assembly depending on whether or not the user of the consumer facility is accepted. A power management method characterized by including a demand processing step. A program that causes a computer to execute an operation of a power management system that performs power management in a power management assembly including a plurality of customer facilities equipped with storage batteries,
The computer,
Providing a predetermined amount of electric power stored in the storage battery set for each consumer facility to other consumer facilities in the power management assembly depending on whether or not the user of the consumer facility is accepted. Program to function as demand processing means.

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