JP2014192981A - Server device and energy distribution system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily identify the power generation derivation of the amount of charge, even when charging from a power system where the commercial power and the renewable energy power are mixed.SOLUTION: A server device 70 comprises: an I/O port 71 for receiving each information of reservation time, reserved amount of power supply, and actual amount of power supply from a photovoltaic power generator 10, and for receiving each information of reservation time, reserved amount of power supply, and actual amount of power supply from a charger 50; and a control unit 73 for calculating the actual amount of the photovoltaic power generator 10 by correlating the actual amount of power supply of the photovoltaic power generator 10 and the actual power demand of the charger 50 every unit time, when the actual amount and the actual power demand correspond to each other, and adding the actual amount of power supply of each unit time thus correlated to the actual power demand of the charger 50, after completion of charging.

Description

  The present invention relates to a server device and an energy distribution system.

  Currently, renewable energy power generated by solar power generators, wind power generators, hydroelectric power generators, and the like is added to a power system through which commercial power is transmitted and transmitted to each home.

  However, since the amount of power generated by renewable energy varies depending on the climate and weather, it is necessary to level the power in the power system. Therefore, a smart grid is being studied that attempts to optimize the balance between power demand and supply by installing communication terminals in a facility that discharges or charges / uses electric power to form a network and perform information communication.

  As such a smart grid, conventionally, microgrids formed from communication terminals of power consumers and supply devices and power control devices connected to the communication terminals via the network are connected via the network. A power control system connected to each other has been proposed (see Patent Document 1).

  In the technique of Patent Document 1, the microgrid compares its own power state with the power state in another microgrid, and controls power transactions with another microgrid according to the comparison result. This optimizes the balance between power demand and supply.

JP 2011-229268 A

  In the power control system described above, there are power generation facilities that use renewable energy as well as power generation facilities of electric power companies. Therefore, there is a demand for users to use renewable energy power as much as possible.

  However, the power control system of Patent Document 1 performs power transactions between microgrids in a state where commercial power and renewable energy power are mixed. For this reason, even if it is charged using the power control system, the user does not know how much renewable energy power is charged with respect to the entire charge amount, that is, the problem that the power source of the entire charge amount is unknown. There is.

  Moreover, in the power control system of Patent Document 1, each microgrid must accurately grasp the power demand amount and power supply amount of all facilities in the microgrid. For this purpose, it is necessary to connect all facilities in the microgrid with a communication network.

  However, the power control system of Patent Document 1 uses a power system that is an infrastructure of an electric power company, and it is practically very accurate to specify the power status of all facilities in the microgrid. Have difficulty.

  The present invention has been proposed in view of such circumstances, and even when charging is performed from an electric power system in which commercial power and renewable energy power are mixed, it is possible to easily grasp the power generation origin of the charge amount. It aims at providing a server apparatus and an energy distribution system.

  A server device according to the present invention includes: a first receiving unit that receives information on a reservation time, a reserved power supply amount, and an actually measured power supply amount from a power supply device that supplies renewable energy power to the power system; The second receiving means for receiving each information of the reservation time, the reserved power demand amount, and the actually measured power demand amount from the power demanding device to which power is supplied from, and each information received by the first and second receiving means. Based on the above, the combination creating means for creating a combination of a power supply device that supplies power in the unit time and a power demand device that is supplied with power in the unit time for each unit time, In the created combination, when the actual power supply amount of the power supply device and the actual power demand amount of the power demand device correspond to each unit time, the actual power supply amount By associating the actual power demand with the correlating means, and after completing the charging of the power demand device, adding the actual power supply amount per unit time associated with the actual power demand of the power demand device , Calculating means for calculating the actual amount of the power supply device, and transmitting means for transmitting the actual amount calculated by the calculating means to the power demanding device.

  The energy distribution system according to the present invention supplies a renewable energy power to the server device and a power system, and transmits a plurality of pieces of information such as a reservation time, a reserved power supply amount, and an actually measured power supply amount to the server device. And a plurality of power demand devices that are supplied with power from the power system and transmit information about a reservation time, a reserved power demand amount, and an actually measured power demand amount.

  According to the present invention, even when charging is performed from an electric power system in which commercial power and renewable energy power are mixed, it is possible to easily identify the power generation origin of the charge amount.

1 is a diagram illustrating a schematic configuration of an energy distribution system 1. FIG. It is a figure which shows the charge reservation status of the electric vehicle which is an electric power demand apparatus, and a charging device. It is a figure which shows the discharge reservation status of the solar power generation device which is an electric power supply apparatus, a wind power generator, and a small hydraulic power generation device. It is a time chart which shows the reservation condition of an electric power demand apparatus and an electric power supply apparatus. It is a flowchart which shows a reservation matching process routine. It is a time chart which shows the reservation situation of the electric power demand apparatus and electric power supply apparatus sorted into (a) solar power generation, (b) small wind power generation, and (c) small hydroelectric power generation. It is a figure which shows the condition of the matching of the demand apparatus and supply apparatus in photovoltaic power generation. It is a flowchart which shows a charging / discharging monitoring process routine. It is a flowchart which shows a total charge amount calculation subroutine. It is a flowchart which shows a total discharge amount calculation subroutine. It is a flowchart which shows a charge amount check subroutine. It is a flowchart which shows a discharge amount check subroutine. It is a flowchart which shows a stringing process subroutine. It is a flowchart which shows a stringing process subroutine. It is a figure which shows the matching link in arbitrary unit time (DELTA). It is a flowchart which shows a binding process subroutine. (A) Immediately before and (b) The figure which shows the charge amount and discharge amount which were registered to the tied link in the present unit time (DELTA) t, (c) The charge amount and discharge amount which were bundled in the present unit time (DELTA) t. FIG. It is a figure which shows a demand side sorting link and a supply side sorting link. It is a figure which shows a demand side sorting link and a supply side sorting link. It is a figure which shows a demand side sorting link and a supply side sorting link. It is a figure which shows a monitor screen.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
[System configuration]
FIG. 1 is a diagram illustrating a schematic configuration of an energy distribution system 1. The energy distribution system 1 includes, for example, a plurality of photovoltaic power generation apparatuses 10, a plurality of wind power generation apparatuses 20, a plurality of small hydroelectric generation apparatuses 30, a plurality of electric vehicles 40, a plurality of charging apparatuses 50, and a commercial power source. A facility 60 and a server device 70 are provided.

[Power system 3]
The solar power generation device 10, the wind power generation device 20, the small hydroelectric power generation device 30, the electric vehicle 40, the charging device 50, and the commercial power supply facility 60 are connected to the power system 3. The solar power generation device 10, the wind power generation device 20, and the small hydroelectric power generation device 30 are, for example, personal or private property, and generate power using solar energy, wind power, and hydropower that are renewable energies, respectively. Transmit power to The commercial power supply facility 60 is owned by an electric power company, generates power using thermal power, nuclear power, and the like, and transmits power to the power system 3.

  The power company also owns power generation facilities that use renewable energy, such as solar power generation devices, wind power generation devices, and hydropower generation devices. Each of these power generation facilities owned by the power company merely transmits the generated power to the power system 3 and does not transmit discharge information such as discharge time and discharge amount to the server device 70.

  For this reason, in this embodiment, the renewable energy power generated by the electric power company is regarded as the same “commercial power” as the power generated using thermal power, nuclear power, etc., and the photovoltaic power generator shown in FIG. 10. Differentiated from “renewable energy power” generated by the wind power generator 20 or the like. However, in the future, if each power generation facility owned by the power company can transmit discharge information such as discharge time and discharge amount to the server device 70, the power generated by each power generation facility owned by the power company It may be regarded as “renewable energy power”.

  The electric vehicle 40 and the charging device 50 charge the power transmitted from the power system 3. The electric vehicle 40 and some of the charging devices 50 can be connected to and disconnected from the power system 3. The electric vehicle 40 is disconnected from the electric power system 3 after the completion of charging, and travels on the road using the charged electric power. In addition, the electric vehicle 40 and the charging device 50 are not limited to charging power from the power system 3, and can discharge power to the power system 3.

[Communication network 5]
The solar power generation device 10, the wind power generation device 20, the small hydraulic power generation device 30, the electric vehicle 40, the charging device 50, and the server device 70 are connected to the communication network 5. The solar power generation device 10, the wind power generation device 20, the small hydraulic power generation device 30, the electric vehicle 40, and the charging device 50 transmit registration information corresponding to the user's operation to the server device 70 via the communication network 5.

  The solar power generation device 10, the wind power generation device 20, the small hydroelectric power generation device 30, the electric vehicle 40, and the charging device 50 measure their power status (charge amount, discharge amount, etc.), and the measurement results are transmitted to the communication network 5. Is transmitted to the server device 70.

  On the other hand, the solar power generation device 10, the wind power generation device 20, the small hydraulic power generation device 30, the electric vehicle 40, and the charging device 50 start discharging (power generation) or charging according to the instruction information transmitted from the server device 70. Or stop.

[Detailed configuration of each device]
The solar power generation device 10 performs data communication with a solar power generator 11 that generates power based on sunlight, a measuring instrument 12 that measures a power generation amount (discharge amount) of the solar power generator 11, and a commercial power supply facility 60. And a communication terminal 13.

  The communication terminal 13 sends each information of the discharge time, the discharge amount, the provided energy type (type of renewable energy power to be discharged: solar power generation), and the area identification information via the communication network 5 according to the user's operation. To the server device 70. Moreover, the communication terminal 13 transmits the measurement result by the measuring device 12 to the server device 70 in response to a request from the server device 70, and discharge of the solar power generator 11 based on the instruction information from the server device 70. Control start or stop of discharge. Although not described in detail, the wind power generator 20 and the small hydroelectric power generator 30 include a generator, a measuring instrument, and a communication terminal, as in the case of the solar power generator 10. Different types of information.

  The charging device 50 includes a charger 51 that charges power transmitted from the power system 3, a measuring device 52 that measures the amount of charge charged in the charger 51, and a communication terminal 53 that performs data communication with the commercial power supply facility 60. And.

  The communication terminal 53 receives each information of the charge reservation time, the charge reservation amount, and the required energy type (type of power generation method of renewable energy power desired to be charged) via the communication network 5 according to the user's operation. It transmits to the server device 70. Further, the communication terminal 53 transmits a measurement result by the measuring device 52 to the server device 70 in response to a request from the server device 70, and starts charging of the charger 51 based on instruction information from the server device 70 or Control charging stop. The electric vehicle 40 includes a charging device 50 and has the same function as the charging device 50.

  The server device 70 includes an input / output port 71 for inputting / outputting data to / from a communication network, a storage unit 72 for storing input data and calculation results, and a control unit 73 for performing calculation processing and overall control. I have.

[System Overview]
In the energy distribution system 1 configured as described above, the power supply device Sj (the solar power generation device 10, the wind power generation device 20, and the small hydropower generation device 30) generates power using renewable energy and generates power. Is transmitted to the electric power system 3. For this reason, in the electric power system 3, not only the commercial power generated by the commercial power supply facility 60 of the power company but also the power transmitted from the power supply device is mixed.

On the other hand, the power demand device (electric vehicle 40, charging device 50) charges the power transmitted from the power system 3. Therefore, the power demand apparatus is charging power in which commercial power and renewable energy power are mixed. However, there is a demand in the power demand apparatus for charging renewable energy power as much as possible.
On the other hand, the energy distribution system 1 can be configured so that, when charging of the power demanding device is completed, as shown in FIG. .

[Reservation of charge / discharge plan]
The power supply device and the power demand device register the discharge plan and the charge plan in the server device 70 in advance.
For example, the communication terminal 53 of the charging device 50 transmits information on the reserved charging time, the reserved charging amount, and the required energy type to the server device 70 via the communication network 5 in accordance with a user operation.

  Further, the communication terminal 53 may transmit setting information of “Green priority”, “Price priority”, “Rapid priority”, and “Region priority” to the server device 70. “Green priority” is a mode in which as much renewable energy as possible is charged, and the charging time may be longer. The “rapid priority” is a mode in which when there is little renewable energy in the reserved time zone, the battery is quickly charged with a commercial power supply. “Price priority” is a mode of charging so that the power purchase price is lowered. For example, when the purchase price of renewable energy is high (instead, for example, many points are given), but the purchase price of commercial power is low, the commercial power is preferentially charged. “Region priority” is a mode in which charging is performed so that the amount of electric power charged in the power generation facility in the designated region is maximized.

  On the other hand, the control unit 73 of the server device 70 receives the information transmitted from the power demand device such as the charging device 50 via the communication network 5 at the input / output port 71 and writes the received information in the storage unit 72.

  FIG. 2 is a diagram illustrating a charging reservation status of the electric vehicle 40 and the charging device 50 that are power demand devices. In the server device 70, as shown in the figure, a charge reservation time, a charge reservation amount, and a required energy type are registered for each of the power demand devices C1 to Cn. The required energy type is the highest priority type. For example, wind power or the like may be automatically used if the amount of provision is insufficient even if solar light is requested.

  On the other hand, the communication terminal 13 of the solar power generation device 10 sends each information of the discharge time, the discharge amount, and the provided energy type (type of renewable energy power to be generated) via the communication network 5 in accordance with a user operation. To the server device 70.

FIG. 3 is a diagram illustrating a discharge reservation status of the power supply device (solar power generation device 10, wind power generation device 20, small hydroelectric power generation device 30). In the server device 70, as shown in the figure, a discharge time, a discharge amount, and a provided energy type are registered for each of the power supply devices S1 to Sm.
As a result, the storage unit 72 of the server device 70 stores the reservation status of power generation and charging of all reservation-registered power demand devices and power supply devices.

  FIG. 4 is a time chart showing the reservation status of the power demand device and the power supply device. As shown in the figure, the reservation status of the power demand devices C1 to Cn and the power supply devices S1 to Sm is registered in the server device 70 in units of ΔT in the time period from time Ta to time Tb. When the server device 70 reaches a predetermined time before the time Ta (for example, one hour before), the server device 70 finishes accepting the reservation registration in the time period from the time Ta to the time Tb, and executes the next matching process.

[Matching process during reservation registration]
When the server device 70 completes the charge / discharge reservation registration of the power demand device and the power supply device, the server device 70 performs matching processing between the power demand device and the power supply device. Matching refers to bringing together (combining) the reserved power demand devices and the respective power supply devices that have the same reserved time for each unit time. Here, the control unit 73 of the server device 70 executes the next reservation matching processing routine.

FIG. 5 is a flowchart showing a reservation matching processing routine.
In step S1, the control unit 73 reads the reservation status of the power demand device and the power supply device from the storage unit 72, and sets the reservation status to the energy type (solar power generation, wind power generation, small size) in the reservation time zone (Ta to Tb). Sort by hydropower).

  FIG. 6 is a time chart showing reservation states of power demand devices and power supply devices sorted into (a) solar power generation, (b) small wind power generation, and (c) small hydropower generation. For example, in solar power generation, as shown in FIG. 5A, reservation statuses of the power demand devices C1, C2, C3 and the power supply devices S1, S2 are extracted. In wind power generation and small hydropower generation, predetermined power demand devices and power supply devices are extracted, respectively.

  In FIG. 5 again, in step S2, the control unit 73 follows the preset order of energy types (for example, the order of sunlight, wind power, hydraulic power) in increments of ΔT in the reserved time zone (Ta to Tb). The power demand device and the power supply device registered in the same time zone ΔT are matched.

  FIG. 7 is a diagram illustrating a state of matching between a power demand device and a power supply device in solar power generation. In the time zone ΔT from time (T−ΔT) to time T, the reservation times of the power demanding devices C2 and C3 and the power supply devices S1 and S2 match. For this reason, the control part 73 matches an electric power demand apparatus (C2, C3) and an electric power supply apparatus (S1, S2). Thereby, the matching link which brought together the electric power demand apparatus and the electric power supply apparatus is produced about the said unit time (DELTA) T. As described above, the matching link refers to a relationship in which the power demanding device and the power supply device are arranged and arranged in the corresponding unit time from all the power demanding devices and power supply devices that are reserved and registered. .

  In step S3, the control unit 73 determines whether or not the reservation time zone (Ta to Tb) is matched with all the unit times ΔT when the reservation time zone (Ta to Tb) is engraved with the unit time ΔT. In the case of determination), the process proceeds to step S5, and in the case of negative determination, the process proceeds to step S4.

  In step S4, the control unit 73 shifts the matching target time to the next unit time ΔT, and returns to step S2. And the control part 73 performs a matching process by all unit time (DELTA) T of a reservation time slot | zone (Ta-Tb) by repeatedly performing step S2-S4, and progresses to step S5.

  By the way, as a result of the processing described above, it is possible to match the power interchange amount between the power demanding device and the power supply device every unit time ΔT. However, the unit time ΔT is assumed to be 1 or 2 hours, for example, but even if it is half a day, it is allowed, and therefore lacks real-time properties. If the electric power consumer and the electric power supplier can grasp instantly about where the renewable energy electric power that flows every moment is generated and consumed, the energy distribution system 1 has a great advantage. Therefore, in order to guarantee real-time properties, the unit time ΔT for performing matching is refined.

  That is, in step S5, the control unit 73 divides all the reserved time zones (Ta to Tb) into unit times Δt (for example, 10 minutes, 15 minutes, etc.) that are refined from the unit time ΔT. The power demand device registered in the time zone Δt and the power supply device are rematched, and the process proceeds to step S6.

  In step S6, the control unit 73 determines whether the reserved time zone (Ta to Tb) is matched with all the unit times Δt when the reservation time zone (Ta to Tb) is cut with the unit time Δt. If a negative determination is made, the process proceeds to step S7.

In step S7, the control unit 73 shifts the matching target time to the next unit time Δt, and returns to step S5. And the control part 73 performs a matching process by all unit time (DELTA) t of a reservation time slot | zone (Ta-Tb) by repeatedly performing step S5-S7, and complete | finishes this routine. As a result, a matching link indicating a combination of the power demand device and the power supply device is created for each unit time Δt. This matching link is created for each energy type (solar power generation, wind power generation, small hydropower generation). The matching link is also used in charge / discharge monitoring processing described later.
As described above, ΔT and Δt are separated in this routine because ΔT, which is a reservation time unit, is set to, for example, about 1 hour in order to avoid the complexity of reservation, while the server device 70 determines the amount of discharge. This is because charge / discharge monitoring is executed in units of Δt in order to finely control the charge amount. Furthermore, even in ΔT, it is considered that there is a possibility that the power demand device and the power supply device may change in Δt units.

[Charging / discharging monitoring process when the reservation time is reached]
When the reserved time is reached, the server device 70 monitors the charge / discharge status of the power demand device and power supply device of the matching link every unit time Δt, and links the actually measured charge / discharge amounts. When the electric vehicle 40 or the charging device 50 is not connected to the power system 3 at the time of actual charging / discharging (when the reservation time has been reached), the reservation matching described above is canceled.

  FIG. 8 is a flowchart showing a charge / discharge monitoring processing routine. That is, when the reserved time is reached, the control unit 73 of the server device 70 executes steps S1 to S94 of this routine.

Here, in the energy distribution system 1 shown in FIG. 1, electric power by solar power generation, wind power generation, and small hydroelectric power is distributed as renewable energy power. Therefore, the control unit 73 of the server device 70 executes this routine in a predetermined energy type order (for example, in order of photovoltaic power generation, wind power generation, and small hydropower generation).
Moreover, since the control part 73 has decomposed | disassembled the reservation time slot | zone (Ta-Tb) for every minute unit time (DELTA) t as mentioned above, the charging / discharging condition of an electric power demand apparatus and an electric power supply apparatus for every unit time (DELTA) t. To monitor.
Therefore, in step S1, the control unit 73 sets the first Δt of the reserved time zone (Ta to Tb), which is the first energy type (for example, photovoltaic power generation), as a processing target, and proceeds to the next step S10. move on.

(Step S10: Total charge amount calculation subroutine)
In step S10, the control unit 73 calculates a total charge amount ΣΔetCi, which is the sum of the charge amounts of the respective power demand devices, in the unit time Δt in the reserved time period (Ta to Tb). Here, the following total charge amount calculation subroutine is executed.

FIG. 9 is a flowchart showing the total charge amount calculation subroutine. That is, the control unit 73 of the server device 70 executes Steps S11 to S16.
In step S11, the control unit 73 requests the measured charge amount for each power demand apparatus Ci matched in the time zone [tk−Δt, tk] from time (tk−Δt) to time tk. To do. And the control part 73 acquires the charge amount transmitted from each electric power demand apparatus Ci, calculates total charge amount (SIGMA) et (DELTA) Ci which is the sum total of the acquired charge amount, and progresses to step S12.

  In step S12, the control unit 73 refers to the reservation status of the power demand device and the power supply device stored in the storage unit 72, and is the time (tk) the charge reservation start time of each power demand device Ci? Determine. If the determination is affirmative, the process proceeds to step S13. If the determination is negative, the process proceeds to step S14.

In step S <b> 13, the control unit 73 transmits a command for instructing the power demand device Ci to start charging. At this time, the power demand device Ci (for example, the charging device 50) starts charging when receiving a command from the server device 70. Then, the process proceeds to step S14.
In this way, the server device 70 instructs the power demand devices that have reached the charging start time to start charging all at once. Thereby, the server device 70 can control the start of charging by synchronizing the power demand devices during charge / discharge monitoring even if the power demand devices are not operating in synchronization in the initial state.

  In step S14, the control unit 73 refers to the reservation status of the power demand device and the power supply device stored in the storage unit 72, and determines whether the time (tk) is the charge reservation stop time of the power demand device Ci. judge. If the determination is affirmative, the process proceeds to step S15. If the determination is negative, the process proceeds to step S16.

In step S15, the control unit 73 transmits a command for instructing to stop charging to the power demand apparatus Ci. At this time, the charging device 50 which is the power demand device Ci stops charging when receiving a command from the server device 70. Then, the process proceeds to step S16.
In this way, the server device 70 instructs the power demand devices that have reached the charging stop time to stop charging all at once. Thereby, even if each power demand device is not operating in synchronization in the initial state, the server device 70 can control charging stop by synchronizing each power demand device during charge / discharge monitoring.

In step S16, the control unit 73 determines whether or not the charge amount measured from all the power demanding devices Ci has been acquired. If the determination is affirmative, the process returns to step S20 shown in FIG. 8, and if the determination is negative, the process returns to step S11.
As a result, a total charge amount ΣΔetCj, which is the sum of the charge amounts actually charged in each power demand device in the unit time Δt, is obtained.

(Step S20: Total discharge amount calculation subroutine)
In step S20 shown in FIG. 8, the control unit 73 calculates a total discharge amount ΣΔetSj that is the sum of the discharge amounts of the respective power supply devices Si in the unit time Δt in the reserved time period (Ta to Tb). Here, the following total discharge amount calculation subroutine is executed.

FIG. 10 is a flowchart showing the total discharge amount calculation subroutine. That is, the control unit 73 of the server device 70 executes steps S21 to S26.
In step S21, the control unit 73 requests the measured discharge amount from the power supply device Sj matched in the time zone [tk−Δt, tk]. And the control part 73 acquires the discharge amount transmitted from each electric power supply apparatus Sj, calculates total discharge amount (SIGMA) et (DELTA) Sj which is the sum total of the acquired discharge amount, and progresses to step S22.

  In step S22, the control unit 73 refers to the reservation status of the power supply device stored in the storage unit 72, and determines whether the time (tk) is the discharge reservation start time of each power supply device Sj. If the determination is affirmative, the process proceeds to step S23. If the determination is negative, the process proceeds to step S24.

In step S23, the control unit 73 transmits a command to instruct the start of discharge to the power supply device Sj (for example, the solar power generation device 10). At this time, the solar power generation device 10 starts discharging when receiving a command from the server device 70. Then, the process proceeds to step S24.
In this way, the server device 70 instructs the power supply devices that have reached the discharge start time to start discharge all at once. Thereby, even if each power supply apparatus is not operating in synchronization in the initial state, the server apparatus 70 can control the start of discharge by synchronizing each power supply apparatus during charge / discharge monitoring.

  In step S24, the control unit 73 refers to the reservation status of the power supply device stored in the storage unit 72, and determines whether the time (tk) is the discharge reservation stop time of the power supply device Sj. If the determination is affirmative, the process proceeds to step S25. If the determination is negative, the process proceeds to step S26.

In step S25, the control unit 73 transmits a command for instructing the electric power supply device Sj to stop discharging. At this time, the power supply device Sj stops discharging when receiving a command from the server device 70. Then, the process proceeds to step S26.
In this way, the server device 70 instructs the power supply devices that have reached the discharge stop time to stop discharging at the same time. Thereby, even if each power supply apparatus is not operating in synchronization in the initial state, the server apparatus 70 can control the discharge stop by synchronizing each power supply apparatus during charge / discharge monitoring.

In step S26, the control unit 73 determines whether or not the discharge amount measured from all the power supply devices Sj has been acquired. If the determination is affirmative, the process returns to step S30 shown in FIG. 8, and if the determination is negative, the process returns to step S21.
As a result, a total charge amount ΣΔetCi, which is the sum of the discharge amounts actually discharged in each power supply apparatus in the unit time Δt, is obtained.

(Step S30: Charge amount check subroutine)
In step S30 shown in FIG. 8, the control unit 73 checks the charge amount of each power demanding device Ci. Here, the next charge amount check subroutine is executed.

  FIG. 11 is a flowchart showing a charge amount check subroutine. That is, the control unit 73 of the server device 70 executes steps S31 to S34 in FIG.

  In step S31, the control unit 73 calculates the accumulated charge amount of the power demanding device Ci from time Ta until the current time (time tk) is reached, and proceeds to step S32. Here, the control unit 73 may calculate a cumulative value of the charge amount for each predetermined time transmitted from the power demand device Ci so far, or transmit the cumulative charge amount to the power demand device Ci. You may request.

  In step S32, the control unit 73 determines whether the accumulated charge amount of the power demanding device Ci is larger than the reserved charge amount. If the determination is affirmative, the process proceeds to step S33, and if the determination is negative, the process proceeds to step S34.

  In step S33, the control unit 73 excludes the power demand device Ci from the matching link after the time tk. As a result, the accumulated charge amount matches the reserved charge amount and is not changed thereafter. Then, the process proceeds to step S34.

  In step S34, the control unit 73 determines whether or not the accumulated charge amount of all the power demanding devices Ci matched in Δt and the reserved charge amount are compared, and if the determination is affirmative, the control unit 73 returns and returns to FIG. It progresses to step S40 which shows, and when negative determination is carried out, it returns to step S31. As a result, the cumulative charge amount of each power demand device increases with time, and when it reaches the reserved charge amount, it is not changed as it is.

(Step S40: discharge amount check subroutine)
In step S40 shown in FIG. 8, the control unit 73 checks the discharge amount of each power supply device Sj. Here, the following discharge amount check subroutine is executed.

  FIG. 12 is a flowchart showing a discharge amount check subroutine. That is, the control unit 73 of the server device 70 executes steps S41 to S44 in FIG.

  In step S41, the control unit 73 calculates the cumulative discharge amount of the power supply device Sj from time Ta until the current time (time tk) is reached, and proceeds to step S42. Here, the control unit 73 may calculate the cumulative value of the discharge amount for each predetermined time transmitted from the power supply device Sj so far, or transmit the cumulative discharge amount to the power supply device Sj. You may request.

  In step S42, the control unit 73 determines whether the cumulative discharge amount of the power supply device Sj is larger than the discharge amount. If the determination is affirmative, the process proceeds to step S43. If the determination is negative, the process proceeds to step S44.

  In step S43, the control unit 73 excludes the power supply device Sj from the matching links after time tk. As a result, the accumulated discharge amount matches the discharge amount and is not changed thereafter. Then, the process proceeds to step S44.

  In step S44, the control unit 73 determines whether or not the accumulated discharge amount of all the power supply devices Sj matched in the Δt has been calculated. If the determination is affirmative, the control unit 73 returns and proceeds to step S50 shown in FIG. If a negative determination is made, the process returns to step S41. As a result, the cumulative discharge amount of each power supply apparatus increases with time, and when it reaches the discharge amount, it is not changed as it is.

(Step S50: linking process subroutine)
In step S50 illustrated in FIG. 8, the control unit 73 associates the matching power amount among the total charge amount and the total discharge amount in the unit time Δt. Here, the following linking process subroutine is executed.

13 and 14 are flowcharts showing the linking process subroutine. FIG. 15 is a diagram illustrating a matching link in an arbitrary unit time Δ. That is, the control unit 73 of the server device 70 executes steps S51 to S69 in FIG. 13 to create a linking link.
The link is a sum of the charge amount of each power demand device and the sum of the discharge amount of each power supply device for each unit time among the power demand devices and each power supply device registered in the matching link. This is a combination of those that match.

  In step S51, the control unit 73 determines whether the total charge amount ΣΔetCi of each power demand device Ci matched in the unit time Δt exceeds the total discharge amount ΣΔetSj of each matched power supply device Sj (ΣΔetCi> ΣΔetSj). If the determination is affirmative, the process proceeds to step S52. If the determination is negative, the process proceeds to step S60.

In step S52, the control unit 73 rearranges the charge amounts Ci of the respective power demand devices in descending order (sorting), and proceeds to step S53. As a result, for example, as shown in FIGS. 15 (a) to 15 (b), sorting is performed in descending order of the charge amount Ci of each power demand device. Each power amount shown in FIG. 15 is a numerical value obtained by dividing the reserved charge amount by the reservation time (in units of Δt).
In step S53, the control unit 73 determines whether the cumulative intermediate value of the total charge amount ΣΔetCi matches the total discharge amount ΣΔetSj. The cumulative intermediate value of the total charge amount ΣΔetCi refers to a cumulative value obtained every time the charge amount Ci of each power demanding device is added. If the determination is affirmative, the process proceeds to step S55. If the determination is negative, the process proceeds to step S54.

  In step S54, the control unit 73 divides the charge amount Ci at the time when the accumulated intermediate value of the total charge amount ΣΔetCi exceeds the total discharge ΣΔetSj, and matches the accumulated intermediate value with the total discharge amount ΣetSj. The amount corresponding to the total charge amount and the total discharge amount is used as the matching power amount in step S69.

For example, in FIG. 15B, the cumulative intermediate value of the total charge amount ΣΔetCi is 3.1 kW when C2, C3, C1, and C4 are added in order, and C5 is added, and the total discharge ΣΔetSj (= 3 0.0 kW).
Therefore, as shown in FIG. 15C, the control unit 73 divides the charge amount C3 into 0.2 kW and 0.1 kW, and adds the divided 0.2 kW instead of C5, thereby accumulating. The intermediate value and the total discharge amount ΣetSj are made to coincide with 3.0 kW. As a result, the amount of power that matches the total charge amount and the total discharge amount is determined to be 3.0 kW. Then, the process proceeds to step S55.

  In step S55, the control unit 73 determines whether a matching link exists in the next energy type. If the determination is affirmative, the process proceeds to step S56. If the determination is negative, the process proceeds to step S57. For example, when this routine is intended for solar power generation, it is determined whether there is a matching link even in the next energy type (for example, wind power generation) in the same unit time Δt.

  In step S56, the control unit 73 registers (adds) the difference (ΣΔetCi−ΣΔetSj) of each sum as a part of the total charge amount ΣΔetCi of the same unit time Δt of the next energy type. Then, the process proceeds to step S69.

  In step S57, the control unit 73 determines whether or not a matching link exists in the next unit time Δt. If the determination is affirmative, the process proceeds to step S58, and if the determination is negative, the process proceeds to step S59.

  In step S58, the control unit 73 registers (adds) the difference (ΣΔetCi−ΣΔetSj) of each sum as a part of the total charge amount ΣΔetCi of the next unit time Δt. Then, the process proceeds to step S69.

  In step S59, the control unit 73 sets the difference (ΣΔetCi−ΣΔetSj) of each sum as the amount supplied from the commercial power to each power demand device, and proceeds to step S69. When the present system 1 is linked with the commercial power generation facility (commercial power manager), the server device 70 notifies the commercial power generation facility that the difference power is obtained.

  On the other hand, in step S60, the control unit 73 causes the total charge amount ΣΔetCi of each power demanding device Ci matched in unit time Δt to fall below the total discharge amount ΣΔetSj of each matched power supply device Sj (ΣΔetCi <ΣΔetSj). When the determination is affirmative, the process proceeds to step S61 in FIG. 14, and when the determination is negative, the process proceeds to step S69.

In step S61, the control unit 73 rearranges the discharge amounts Sj of the respective power supply devices in descending order (sorting), and proceeds to step S62.
In step S62, the control unit 73 determines whether the cumulative intermediate value of the total discharge amount ΣΔetSj matches the total charge amount ΣΔetCi. The cumulative intermediate value of the total discharge amount ΣΔetSj refers to a cumulative value obtained every time the discharge amount Sj of each power supply device is added. If the determination is affirmative, the process proceeds to step S64. If the determination is negative, the process proceeds to step S63.

  In step S63, the control unit 73 divides the discharge amount Sj when the cumulative intermediate value of the total discharge amount ΣΔetSj exceeds the total charge ΣΔetCi, and matches the cumulative intermediate value with the total charge amount ΣetCi. The amount in which the total discharge amount and the total charge amount match is used in step S69 as the matching power amount. Then, the process proceeds to step S64.

  In step S64, the control unit 73 determines whether a matching link exists for the next energy type. If the determination is affirmative, the process proceeds to step S65. If the determination is negative, the process proceeds to step S66.

In step S65, the control unit 73 registers (adds) the difference of each sum (ΣΔetSj−ΣΔetCi) as a sum of the total discharge amount ΣΔetSj of the same unit time Δt of the next energy type. Then, the process proceeds to step S69 shown in FIG.
In step S66, the control unit 73 determines whether or not a matching link exists in the next unit time Δt. If the determination is affirmative, the process proceeds to step S67, and if the determination is negative, the process proceeds to step S68.

In step S67, the control unit 73 registers (adds) the difference (ΣΔetSj−ΣΔetCi) of each sum as a part of the total discharge amount ΣΔetCi of the next unit time Δt. Then, the process proceeds to step S69 shown in FIG.
In step S68, the control unit 73 sets the difference (ΣΔetSj−ΣΔetCi) of each sum as the amount supplied from each power supply device to the commercial power, and proceeds to step S69 shown in FIG. In addition, when this system 1 is linked with the commercial power generation facility (commercial power manager), the server device 70 notifies the commercial power generation facility that the difference power is surplus. .

  In step S69, the control unit 73 registers the amount of power that matches each sum as a linking link. For example, in the unit time Δt, when the total charge amount ΣΔetCi and the total discharge amount ΣΔetSj are the same from the beginning (steps S51 → S60 → S69), the total charge amount ΣΔetCi and the total discharge amount ΣΔetSj are registered as linked links.

In addition, when the total charge amount ΣΔetCi exceeds the total discharge amount ΣΔetSj or when the total charge amount ΣΔetCi is less than the total discharge amount ΣΔetSj, the amount of power that matches the total charge amount and the total discharge amount As a linking link.
For example, in the case of FIG. 15C, the total charge amount and the total discharge amount of 3.0 kW match each other. Therefore, the charge amounts C2, C3, C1, C4, C5 (only 2.0 kW) corresponding to each 3.0 kW and the discharge amounts S2, S4, S1, S3 are linked together, and this unit It is registered in the linking link at time Δt. And it returns and progresses to step S70 shown in FIG.

(Step S70: binding process subroutine)
In step S70 shown in FIG. 8, the control unit 73 performs a binding process for clarifying the correspondence between the charge amount and the discharge amount for each power amount that is tied together in the unit time Δt. Here, the combination of the power demand device (charge amount) and the power supply device (discharge amount) once used is preferentially used even in the next unit time Δt. Therefore, in order to “bind” the power demanding device (charge amount) and the power supply device (discharge amount) once used, the following binding processing subroutine is executed.

FIG. 16 is a flowchart showing a binding processing subroutine. FIGS. 17A and 17B are diagrams showing the charge amount and the discharge amount registered in the linking link immediately before (a) and (b) the current unit time Δt, and (c) the charge amount subjected to the bundling process in the current unit time Δt. It is a figure which shows discharge amount.
As shown in FIG. 17B, the charge amounts C1 to C5 and the discharge amounts S1 to S4 are registered in the linking link in the current unit time Δt. In addition, as shown in FIG. 5A, the charge amounts C1, C3, C5 and the discharge amounts S1 to S4 are registered in the tied link in the immediately preceding unit time Δt, and the charge amount and the discharge amount are already registered. Bundling processing has been completed. The result of the binding process in the immediately preceding unit time Δt is referred to in the binding process in the current unit time Δt.

In step S71, the control unit 73 creates the demand-side sorting link and the supply-side sorting link by rearranging the charge amounts Ci and discharge amounts Sj registered in the association link in the current unit time Δt in descending order. To do.
18 to 20 are views showing the demand side sorting link and the supply side sorting link. As shown in FIG. 18 (a), the discharge amounts Ci are arranged in the demand side sorting link, and the discharge amounts Si are arranged in descending order on the supply side sorting link. Then, the process proceeds to step S72.

In step S72, the control unit 73 selects the maximum charge amount Ci from the demand side sorting link, and proceeds to step S73. In the case of FIG. 18A, the charge amount C2 (1.0 kW) is selected.
In step S73, the control unit 73 determines whether there is binding information for the selected charge amount Ci in the immediately preceding unit time Δt. If the determination is affirmative, the process proceeds to step S77. If the determination is negative, the control unit 73 proceeds to step S74. move on.
For example, as shown in FIG. 17A, the charge amount C2 is not subjected to a binding process in the immediately preceding unit time Δt, and thus there is no binding information. For this reason, a negative determination is made in this step, and the process proceeds to the next step S74.

  In step S74, the control unit 73 determines whether there is a record in which the charge amount Ci has already moved to the end of the demand side sorting link. If the determination is affirmative, the process proceeds to step S80. If the determination is negative, the process proceeds to step S75. move on.

  In step S75, the control unit 73 moves (registers) the charge amount Ci to the tail end of the demand side sorting link, and records that it has moved. For example, the amount of charge C2 has not been recorded so far at the end of the demand side sorting link. For this reason, the charge amount C2 is moved to the tail end of the demand side sorting link as shown in FIG. Then, the process proceeds to step S76.

In step S76, the control unit 73 determines whether or not the entire charge amount Ci of the demand-side sorting link in the unit time Δt has been processed. If the determination is affirmative, the control unit 73 returns and proceeds to step S90 shown in FIG. If a negative determination is made, the process returns to step S72.
For example, in the case of FIG. 18B, the charge amounts C1 to C5 remain unprocessed in the demand-side sorting link. For this reason, it returns to step S72 and the charge amount C3 which is the maximum charge amount Ci is selected. As shown in FIG. 17 (a), the charge amount C3 has the binding information in the immediately preceding unit time Δt. For this reason, the process of the following step S77 is performed.

In step S77, the control unit 73 selects a discharge amount Sj as a binding destination of the charge amount Ci in the immediately preceding unit time Δt.
For example, in the case of FIG. 18B, the binding amount of the charge amount C3 in the immediately preceding unit time Δt is the discharge amounts S2 and S3 as shown in FIG. 17A. Here, for example, the discharge amount S2 is selected. Then, the process proceeds to step S78.

  In step S78, the control unit 73 determines whether or not the selected discharge amount Sj exists in the linking link (or supply-side sorting link) at the unit time Δt. If the determination is affirmative, the process proceeds to step S81. If a negative determination is made, the process proceeds to step S79. For example, as shown in FIG. 17B, the discharge amount S2 exists in the linking link at the unit time Δt, and thus also exists in the supply-side sorting link after step S71. For this reason, an affirmative determination is made in this step, and the process proceeds to step S81.

In step S79, the control unit 73 determines whether or not the entire discharge amount Sj of the binding destination in the immediately preceding unit time Δt has been processed for the charge amount Ci, and if the determination is affirmative, the process proceeds to step S80, and a negative determination is made. If so, the process returns to step S77 to process another discharge amount Sj.
For example, the binding destination in the unit time Δt immediately before the charge amount C3 is the discharge amounts S2 and S3. If only the discharge amount S2 is processed, the process returns to step S77, and if both the discharge amounts S2 and S3 are processed, the process proceeds to step S80.
In step S80, the control unit 73 selects the maximum discharge amount Sj from the supply-side sorting link, and proceeds to step S81.

In step S81, the control unit 73 determines whether or not the charge amount Ci selected in step S72 matches the discharge amount Sj selected in the latest step S77 or S80. The process proceeds to step S82, and if the determination is negative, the process proceeds to step S83.
In step S82, the control unit 73 removes the charge amount Ci from the demand-side sorting link and the discharge amount Sj from the supply-side sorting link, and establishes a link for binding the charge amount Ci and the discharge amount Sj to each other. . Then, the process proceeds to step S76 described above.

In step S83, the control unit 73 divides the larger one of the selected charge amount Ci and discharge amount Si. Here, the larger one is divided into an amount of electric power in which the charge amount Ci and the discharge amount Si coincide with each other and an extra (difference) electric energy.
Further, the control unit 73 removes the charge amount Ci from the demand-side sorting link and the discharge amount Sj from the supply-side sorting link, and the charge amount Ci and the discharge amount Sj for the matching power amounts, as in step S82. Create a link to tie each other together. The control unit 73 registers the difference power amount in the corresponding sorting ring. Then, the process proceeds to step S76 described above.

  For example, in the case of FIG. 18B, the charge amount C3 (0.9 kW) and the discharge amount S2 (1.5 kW) do not match. For this reason, the larger discharge amount S2 is divided into a corresponding amount of power of 0.9 kW and an excess amount of power of 0.6 kW. Then, as shown in FIG. 18 (c), 0.9 kW of the charge amount C3 and the discharge amount S2 is removed from each sorting link, and a link is attached to tie them together. Furthermore, 0.6 kW of the discharge amount S2, which is the difference power amount, is newly registered in the supply-side sorting link (second from the top). Then, the process returns to step S72 via step S76.

  In the case of FIG. 18C, the maximum charge amount C1 is selected from the demand-side sorting link (step S77). The charge amount C1 is tied to the discharge amount S1 in the immediately preceding unit time Δt, and the charge amount C1 (0.5 kW) and the discharge amount S1 (0.5 kW) match (Yes determination in step S81). For this reason, as shown in FIG. 19 (d), the charge amount C1 and the discharge amount S1 are removed from each sorting link, and a link for tying them together is established (step S82). And it returns to step S72 again via step S76.

  Further, in the case of FIG. 19D, the maximum charge amount C4 is selected from the demand side sorting link (step S77). As shown in FIG. 17 (a), the charge amount C4 is not tied to the discharge amount Si in the immediately preceding unit time Δt (negative determination in step S73). Therefore, as shown in FIG. Move to the tail of the side sorting link (step S75). And it returns to step S72 again via step S76.

In the case of FIG. 19 (e), the maximum charge amount C5 is selected from the demand-side sorting link (step S77). As shown in FIG. 17A, the charge amount C5 is tied to the discharge amount S4 in the immediately preceding unit time Δt.
Of the charge amount C5 (0.2 kW) and the discharge amount S4 (0.7 kW), the larger discharge amount S4 is a matching power amount of 0.2 kW and an extra power amount of 0.5 kW. Divided into minutes. And as shown in FIG.19 (f), 0.2kW of charge amount C5 and discharge amount S4 is removed from each sorting link, and the link for tying up mutually is extended. Furthermore, 0.5 kW of the discharge amount S4, which is the difference power amount, is newly registered in the supply-side sorting link (second from the top). Then, the process returns to step S72 via step S76.

  In the case of FIG. 19F, the maximum charge amount C2 is selected from the demand side sorting link (step S77). The charge amount C2 has a record of moving to the tail end of the demand side sorting link (from FIG. 18A to FIG. 18B). For this reason, the maximum discharge amount S2 is selected from the supply-side sorting link through an affirmative determination in step S74 (step S80).

  Of charge amount C2 (1.0 kW) and discharge amount S2 (0.6 kW), the larger charge amount C2 is 0.6 kW which is a matching power amount and 0.4 kW which is an extra power amount. Divided into minutes. Then, as shown in FIG. 19 (g), the charge amount C2 and the discharge amount S2 of 0.6 kW are removed from each sorting link, and a link for tying them together is provided. Further, 0.4 kW of the discharge amount C2, which is the difference power amount, is newly registered in the demand side sorting link (second from the top). Then, the process returns to step S72 via step S76.

In the case of FIG. 19 (g), the maximum charge amount C4 is selected from the demand-side sorting link, and there is a record that this charge amount C4 has moved to the tail of the demand-side sorting link (FIG. 19 (d) e)). For this reason, the maximum discharge amount S4 is selected from the supply-side sorting link.
As shown in FIG. 20 (h), the amount of electric power 0.4 kW corresponding to the amount of charge C4 and the amount of discharge S4 is removed from each sorting link and a link for tying them together is provided. Furthermore, 0.1 kW of the discharge amount S4, which is the difference power amount, is newly registered in the supply-side sorting link (second from the top). Again, it returns to step S72 via step S76.

In the case of FIG. 20 (h), the maximum charge amount C2 is selected from the demand side sorting link, and there is a record that this charge amount C2 has moved to the tail end of the demand side sorting link (from FIG. 18 (a) ( b)). For this reason, the maximum discharge amount S3 is selected from the supply-side sorting link.
As shown in FIG. 20 (i), the amount of electric power 0.3 kW corresponding to the amount of charge C2 and the amount of discharge S3 is removed from each sorting link and a link for tying them together is provided. Furthermore, 0.1 kW of charge amount C2, which is the difference power amount, is newly registered in the demand side sorting link. Again, it returns to step S72 via step S76.

  In the case of FIG. 20 (i), the maximum charge amount C2 is selected from the demand-side sorting link, and there is a record that this charge amount C2 has moved to the tail end of the demand-side sorting link (from FIG. 19 (a) ( b)). For this reason, the maximum discharge amount S4 is selected from the supply-side sorting link. Since the charge amount C2 and the discharge amount S4 have the same power amount, as shown in FIG. 20J, the charge amount C2 is removed from each sorting link, and a link for tying them together is established (step S82).

In the case of FIG. 20J, there is no information on the demand side sorting link and the supply side sorting link. At this time, all the discharge amounts Sj of the binding destination in the unit time Δt immediately before the charge amount Ci are processed (Yes determination in step S76). Therefore, this routine is ended, and the process returns to step S90 shown in FIG.
As a result, as shown in FIG. 20 (j), each charge amount Ci and each discharge amount Sj are completely bound in the unit time Δt. That is, in the unit time Δt, it becomes clear which power amount (charge amount Ci) of the discharge amount Sj discharged from each power supply device is charged by which power demanding device.

[After Step S90]
In step S90 shown in FIG. 8, the control unit 73 determines whether or not the above-described steps S1 to S70 have been performed for all energy types. If the determination is affirmative, the process proceeds to step S92. If the determination is negative, the control unit 73 proceeds to step S91. move on. In Step S91, control part 73 shifts to processing of the following energy classification, and returns to Step S10 again.
For example, in the unit time Δt, when steps S1 to S70 are performed on the photovoltaic power generation, the above-described steps are performed on the next wind power generation power. And if each step mentioned above about all the energy classifications is implemented, it will progress to Step S92.

  In step S92, the control unit 73 determines whether or not the time unit has been completed from time Ta to time Tb in increments of Δt. If the determination is affirmative, the process proceeds to step S94. If the determination is negative, the process proceeds to step S93. In step S93, the control unit 73 shifts to the next process of time unit Δt and returns to step S10 again. As a result, the above-described steps are executed for all energy types in the reserved time zone (time Ta to time Tb).

  In step S94, for each energy type, the control unit 73 sums up the discharge amount Si bundled in all unit times Δt of the reserved time period (Ta to Tb) with respect to the charge amount Ci of each power demand device. Is calculated. This sum is the actual charge amount for each energy type, that is, for each renewable energy.

  For example, with respect to the photovoltaic power generation, the control unit 73 calculates the sum of all the discharge amounts Sj bound to the charge amount Ci of the charging device 50 in all the unit times Δt in the reserved time period (Ta to Tb). The actual charge amount is calculated for each solar power generation device 10. Moreover, the control part 73 is the result about the sum total of all the discharge amount Sj tied to the charge amount Ci of the charging device 50 in all the unit time (DELTA) t of a reservation time slot | zone (Ta-Tb) about wind power generation electric power. The amount of charge is calculated for each wind power generator 20. The controller 73 similarly calculates other energy types such as small hydroelectric power. As a result, among the total charging amount of the charging device 50, the actual charging amount of each solar power generation device 10, the actual charging amount of each wind power generation device 20, the actual charging amount of each small hydroelectric power generation device 30, and the like are calculated.

In addition, the control unit 73 calculates the sum of the charge amounts Ci bundled in all the unit times Δt of the reserved time period (Ta to Tb) with respect to the discharge amount Sj of each power supply device for each energy type. To do.
As a result, for example, the actual discharge amount supplied to each electric vehicle 40 and the actual charge amount supplied to each charging device 50 among the total discharge amount of the solar power generation device 10 are calculated. Similarly, the actual discharge amount supplied to each electric vehicle 40 and the actual charge amount supplied to each charging device 50 among the total discharge amount of the wind power generator 20 are calculated.

  The control unit 73 transmits the actual charge amount and the actual discharge amount calculated in step S94 to each power demand device and each power supply device via the input / output port 71. In each power demand device, the actual charge amount for each power supply device with respect to the total charge amount is displayed. In each power supply device, the actual discharge amount for each power demand device with respect to the total discharge amount is displayed.

  For example, when the communication terminal 53 of the charging device 50 receives the actual charge amount by solar power generation from the server device 70, the communication terminal 53 can display the ratio of the actual charge amount by solar power generation to the total charge amount on the monitor. The communication terminal 53 may calculate and display a clean energy power index (best energy monitor) using the total charge amount and the actual charge amount. The best energy represents energy that has no environmental load that does not actually exist.

FIG. 21 is a diagram illustrating a monitor screen of the communication terminal 53 of the charging device 50. This monitor screen is also provided on the electric vehicle 40. On the monitor screen, “charging rate”, “power generation forecast”, and “best energy monitor” are displayed.
“Charge rate” represents the ratio (%) of the current charge amount to the maximum capacity of the charging device 50. The “power generation forecast” is an index determined by weather information, and is 100% if clear and 0% if the weather is so bad that solar power generation is impossible. If the weather is worse as the numerical value of “power generation prediction” is lower, the photovoltaic power generated in the charging device 50 may be automatically suppressed. This saves the user trouble.

  “Best energy monitor” is an index (best energy equivalent amount ratio BR) indicating how much renewable energy is used. For example, the best power generation method, renewable energy, thermal power generation, and nuclear power generation are derived from power generation, and the rating (weighting) is set to 100, 90, 60, 20 for example.

The best energy equivalent amount ratio BR is obtained by the communication terminal 53 according to the following equation, for example.
BR = B / Σ (charge amount derived from each power generation) (%)
However, B = Σ (charge amount derived from each power generation × rating) / 100 (kWh).
The charge amount derived from each power generation corresponds to the actual charge amount transmitted from the server device 70 for each energy type. In addition, the calculation formula of BR, such as a rating value, is not limited to the above, but it is sufficient to know how much renewable energy is used.

Further, as shown in FIG. 21, “Green priority”, “Rapid priority”, “Price priority”, and “Point priority” are displayed on the monitor screen of the communication terminal 53. In addition, “area priority” (not shown) is also displayed on this monitor screen.
“Green priority” is a mode in which as much renewable energy as possible is charged, and the charging time may be longer. The “rapid priority” is a mode in which when there is little renewable energy in the reserved time zone, the battery is quickly charged with a commercial power supply.
“Price priority” is a mode of charging so that the power purchase price is lowered. For example, when the purchase price of renewable energy is high (more points are given) but the purchase price of commercial power is low, the commercial power is preferentially charged.
“Point priority” is a mode in which charging is performed so as to increase points. The points here are points given to the user when purchasing renewable energy, and the points differ depending on the energy type. Thus, in “point priority”, the renewable energy generated at the time of reservation execution is selected and charged with the highest point. “Region priority” is a mode in which charging is performed so that the amount of electric power charged in the power generation facility in the designated region is maximized.

  As described above, in the energy distribution system 1 according to the present embodiment, the server device 70 uses the information registered in advance to connect the charging device 50 that is a power demand device and the solar power generation device 10 that is a power supply device. Match. And the server apparatus 70 measures the charge amount of the matched charging device 50, and the discharge amount of the solar power generation device 10, and links | relates when a response | compatibility with demand and supply is taken.

  As a result, the server device 70 calculates the sum of the discharge amount of the solar power generation device 10 associated with the charge amount of the charging device 50, so that the solar power generation device 10 occupies the charge amount of the charging device 50. The amount of discharge can be determined. Therefore, even when the user charges the charging device 50 using the power system 3 in which commercial power and renewable energy power are mixed, how much renewable energy power is present in the total charging amount of the charging device 50, that is, The power generation origin can be easily grasped.

  Moreover, even if the energy distribution system 1 does not grasp all the charge / discharge information of all the power supply devices that supply power to the power system 3 and all the power demand devices that are supplied with power from the power system 3, Since it is only necessary to be able to communicate between the device that wants to share power and the server device 70, the system can be easily constructed.

In addition, this invention is not limited to embodiment mentioned above, It can apply also to what was changed in the design within the range of the matter described in the claim.
For example, the server device 70 simply matched a plurality of power demand devices and a plurality of power supply devices in the same time zone during the matching process at the time of reservation registration (step S2 in FIG. 5), but the same You may match in order from the highest priority in the time zone. The priority order may be, for example, the order in which the registration order is early or the order in which the amount of power to be distributed is large.

  In the above-described embodiment, the solar power generation device 10, the wind power generation device 20, and the small hydroelectric power generation device 30 are cited as the power supply device, but the electric vehicle 40 or the charging device 50 may be used. At this time, the electric vehicle 40 may be connected to a household power connection device, discharge the power stored in the storage battery, and supply the power to the power system 3.

  Moreover, the electric vehicle 40 (the charging device 50 is also acceptable) can confirm whether or not the charging device 50 and the partner charging device 50 (the electric vehicle 40 are also acceptable) are connected to the power system 3 at the start of charging / discharging. In this case, the electric vehicle 40 performs a normal operation if the electric vehicle 40 and the other party are connected to the power system 3, and performs the following operation if the electric vehicle 40 is not connected.

  The electric vehicle 40 communicates with the connecting charging device 50 at the start of charging / discharging. At this time, the electric vehicle 40 on the charging side checks the amount of power including the required energy type of the charging device 50 on the discharging side. When the charging device 50 is not charging the required charge amount, the electric vehicle 40 cannot satisfy the priority settings (“Green priority”, “Price priority”, “Rapid priority”, “Region priority”). The monitor screen may be displayed to call attention.

Furthermore, when the electric vehicle 40 is charged from the charging device 50 in a state where it is completely disconnected from the electric power system 3 (when the electric vehicle 40 and the charging device 50 are directly connected), the required energy by the electric vehicle 40 The reservation including the type is valid, but the reservation by the charging device 50 may be invalidated.
The electric vehicle 40 charges the amount of charge corresponding to the reserved energy type among the amount of power discharged from the charging device 50.

  When the electric energy of the required energy type (for example, solar power generation) is insufficient, the electric vehicle 40 is charged with power of another energy type (for example, wind power generation) as in the network connection in the above-described embodiment. These energy types may be used from data stored in each device, or may directly inquire the server device 70. And after completion of charging / discharging, the electric vehicle 40 and the charging device 50 may transmit the charge amount or the discharge amount, and the content of the energy type to the server device 70.

  In the above-described embodiment, the server device 70 controls the start / stop of charging / discharging of each power demand device and each power supply device, but is not limited thereto. For example, each power demand device and each power supply device itself may control the start / stop of charge / discharge. In the above-described embodiment, the server device 70 has prioritized solar power generation, but instead performs priority processing on another energy type such as wind power generation, and solar power generation when the power is insufficient. Other power may be processed.

DESCRIPTION OF SYMBOLS 1 Energy distribution system 10 Photovoltaic power generation device 11 Photovoltaic generator 12,52 Measuring device 13,53 Communication terminal 20 Wind power generation device 30 Small hydroelectric power generation device 40 Electric vehicle 50 Charging device 51 Power storage device 60 Commercial power supply equipment 70 Server device 71 Input Output port 72 Storage unit 73 Control unit

Claims (4)

First receiving means for receiving information on a reservation time, a reserved power supply amount, and an actually measured power supply amount from a power supply device that supplies renewable energy power to the power system;
A second receiving means for receiving each information of a reservation time, a reserved power demand amount, and an actually measured power demand amount from a power demand device to which power is supplied from the power system;
Based on each information received by the first and second receiving means, for each unit time, a power supply device that supplies power in the unit time, a power demand device that supplies power in the unit time, A combination creating means for creating a combination of
In the combination created by the combination creating means, when the measured power supply amount of the power supply device corresponds to the measured power demand amount of the power demand device for each unit time, the measured power supply amount and the measured power demand A linking means for linking the quantity;
After completing the charging of the power demanding device, by adding the actual power supply amount per unit time linked to the actual power demand amount of the power demanding device, arithmetic means for calculating the actual amount of the power supply device;
Transmitting means for transmitting the actual amount calculated by the calculating means to the power demand device;
A server device comprising: The combination creating means creates a combination of the power supply device and the power demand device for each type of the renewable energy power,
The linking means links the measured power supply amount of the power supply device and the measured power demand amount of the power demand device for each type of the renewable energy power,
The server device according to claim 1, wherein the calculation unit calculates the actual amount of the power supply device for each type of the renewable energy power. The server device according to claim 1, wherein the combination creating unit creates a combination of the power supply device and the power demand device in order from a power supply device and a power demand device with higher priority. The server device according to any one of claims 1 to 3,
A plurality of power supply devices that supply renewable energy power to the power system, and transmit each information of a reservation time, a reserved power supply amount, and an actually measured power supply amount to the server device;
A plurality of power demand devices that are supplied with power from the power system and transmit each information of reservation time, reserved power demand amount, actual power demand amount,
Energy distribution system with