JP2018133967A - Power controller and power control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power controller and a power control method capable of increasing the possibility of dealing with reduction request from an external region.SOLUTION: A power controller controls power transmission state between a power management region where power related facility is placed and an external region, and includes a power demand control section. Upon receiving a power demand reduction request in the power management region from an external region, the power demand control section sets an external supply power, i.e., a supply power to an external region, to a top priority supply destination as the supply destination of generated power. In this way, when a reduction request from an external region is received, more electric energy of the generated power that can be transmitted to an external region can be secured, by setting the external supply power to the top priority supply destination. Consequently, the power controller can increase the possibility of dealing with a reduction request.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a power control apparatus and a power control method for controlling a power transmission state between a power management area in which power-related facilities are arranged and an external area.

  There are known a power control apparatus and a power control method for controlling a power transmission state between a power management area where a power-related facility is arranged and an external area. Note that examples of the power-related equipment include power load equipment that consumes power, power generation equipment that generates power, and power storage equipment that stores and discharges power.

The power control apparatus controls power demand and power supply in the power-related facilities, in addition to controlling the power transmission state between the power management area and the external area.
When the power control apparatus receives a request for reducing power consumption in the power management area from the external area, the power control device reduces the power consumption in the power management area in order to respond to the reduction request. And power supply is controlled (Patent Document 1). For example, when there is a margin in the generated power in the power generation facility, the margin for the generated power can be supplied to the external region (reverse power flow, external power supply) to meet the reduction request.

JP 2012-249476 A

  However, in the above-described conventional configuration, when a reduction request is received from the external area, there is a problem that reverse power flow power or external power supply supplied to the external area cannot be secured if the generated power is not sufficient. .

  That is, as the supply destination of the generated power in the power generation facility, first, the power load facility is set, then the power storage facility is set, and finally the external region (reverse power flow power, external supply power) is set. In this way, in the configuration where generated power is used for power consumption in power load facilities and charging power in power storage facilities, less power can be used as reverse power flow or externally supplied power in the generated power. It may not be possible to respond to reduction requests from the domain.

  Therefore, an object of the present invention is to provide a power control apparatus and a power control method that can increase the possibility of responding to a reduction request from an external area.

  One aspect of the present invention is a power control apparatus that controls a power transmission state between a power management area in which power-related facilities are arranged and an external area, and includes a power supply and demand control unit. The power-related equipment includes power load equipment that consumes power, power generation equipment that generates power, and power storage equipment that stores and discharges power.

  When controlling the power demand and power supply in power-related facilities, the power supply and demand control unit receives a request for reducing power demand in the power management area from the external area and sends it to the external area as the supply destination of the generated power in the power generation equipment. The externally supplied power that is the supplied power is set as the highest priority supply destination.

  The power control apparatus configured as described above can transmit the generated power to the external area by setting the external supply power as the highest priority supply destination of the generated power when receiving the reduction request from the external area. More electric power can be secured. Thereby, the power control apparatus can increase the possibility of responding to the reduction request.

  Next, in the power control apparatus described above, the power supply and demand control unit supplies the surplus power obtained by subtracting the reduction request power from the generated power when the reduction request power requested in the reduction request is smaller than the generated power. As a destination, at least a power load facility may be set.

  As a result, surplus power of the generated power can be supplied to the power load equipment, power supplied from the external area to the power load equipment can be reduced, and at least a part of the power supplied to the power load equipment can be supplied with the surplus power. Can be supplemented.

Next, in the power control apparatus described above, the power supply and demand control unit may stop charging the power storage facility when the power consumption in the power load facility is equal to or greater than the surplus power.
As a result, it is not necessary to secure the power required for charging the power storage equipment, and the power demand in the power management area can be reduced. Therefore, it becomes easy to stabilize the power supply and demand in the power management area.

  Next, in the above-described power control device, the power supply and demand control unit performs discharge from the power storage facility and supplies discharge power from the power storage facility when the power consumption in the power load facility is larger than the surplus power. As a destination, at least a power load facility may be set.

Thereby, in addition to the generated power (specifically, surplus power), the discharge power from the power storage facility can be supplied to the power load facility, and it becomes easy to secure the power consumption necessary for the operation of the power load facility.
Next, in the power control apparatus described above, the power supply and demand control unit sets at least the charging power of the power storage facility as a supply destination of the surplus power when the power consumption in the power load facility is smaller than the surplus power. Also good.

Thereby, the surplus power can be stored in the power storage facility, and when the power is insufficient, the power shortage can be solved by discharging from the power storage facility.
Next, in the power control apparatus described above, the power supply and demand control unit stops charging the power storage facility and discharges the power storage facility when the reduction request power requested in the reduction request is equal to or greater than the generated power. It is possible to set at least one of the power consumption in the power load facility and the external supply power as the supply destination of the discharge power from the power storage facility.

  As a result, even if the power required for reduction cannot be secured with the generated power, at least part of the shortage of the power required for subtracting the generated power from the power required for reduction can be compensated by the discharge power of the storage equipment, so that the demand for reduction can be met. The possibility of being able to be increased can be increased.

  Another aspect of the present invention is a power control method for controlling a power transmission state between a power management area in which a power-related facility is arranged and an external area, and controls power demand and power supply in the power-related facility. In this case, when a request for reducing the power demand in the power management area is received from the external area, the external supply power that is the power supplied to the external area is set as the highest priority supply destination as the supply destination of the generated power in the power generation facility. The power-related equipment includes power load equipment that consumes power, power generation equipment that generates power, and power storage equipment that stores and discharges power.

  Since this power control method can secure a larger amount of power that can be transmitted to the external region in the generated power, as with the above-described power control device, it can increase the possibility of responding to a reduction request.

It is explanatory drawing which shows schematic structure of a power management system provided with a power control apparatus. It is explanatory drawing showing an example of the electric power supply-and-demand state of the electric power related installation (a load installation, an electrical storage installation, a power generation installation) in the electric power management area | region when not receiving DR instruction | command. It is a flowchart showing the processing content of DR corresponding | compatible control processing. It is explanatory drawing showing an example of the electric power supply-and-demand state of the power related equipment (a load equipment, an electrical storage equipment, a power generation equipment) in the electric power management area | region at the time of receiving DR command.

Embodiments to which the present invention is applied will be described below with reference to the drawings.
In addition, this invention is not limited to the following embodiment at all, and it cannot be overemphasized that various forms may be taken as long as it belongs to the technical scope of this invention.

[1. First Embodiment]
[1-1. overall structure]
FIG. 1 is an explanatory diagram illustrating a schematic configuration of a power management system 1 including a power control device 20 according to the first embodiment.

  The power management system 1 includes one management device 10 (hereinafter also referred to as “CEMS (Community Energy Management System) 10”) and a plurality of power control devices 20 (hereinafter referred to as “BEMS”) provided in a predetermined management area 9. (Also referred to as “Building Energy Management System) 20”).

  The CEMS 10 performs various operations with a plurality of power company side devices (not shown) and various devices (such as the power control device 20) provided in the management area 9 via a wireless or wired communication path 11 (such as an Internet line). This is a higher-level management device that transmits and receives information and manages the power supply and demand between the commercial power supply 16 and the management area 9 via the power line 17.

  The CEMS 10 is a computer system having a CPU (Central Processing Unit), ROM, RAM, hard disk, input / output interface, and the like. A control program stored in a ROM or the like causes the CPU to function at least as an instruction unit for performing various information calculations, and causes an input / output interface or the like to function as an acquisition unit and an output unit. Is made to function as a storage unit that stores various information input from the power control device 20 or the like.

  The CEMS 10 outputs a demand response command (hereinafter also referred to as “DR command”) to each of the plurality of power control devices 20 as one of various types of information. The DR command is a power demand limitation command including information on the limitation command period and the power reduction amount in the target power management area 30.

  The management area 9 includes at least one power management area 30 (for example, a building) and at least one individual load 34. The power management area 30 and the individual load 34 are connected to a power line 17 for transmitting power. In FIG. 1, three power management areas 30 </ b> A, 30 </ b> B, and 30 </ b> C and one individual load 34 are illustrated, and the other power management areas 30 and individual loads 34 are not illustrated.

The power management area 30 includes a power control device 20 and power-related equipment (load equipment 31, power storage equipment 32, power generation equipment 33).
The power control apparatus 20 includes a power management area 30 in which power related facilities (load equipment 31, power storage equipment 32, power generation equipment 33) are arranged and an external area (commercial power supply 16, other power management area 30, individual load 34). It is a power control device that controls the power transmission state between the two and the power supply / demand state of the power-related equipment in its own power management region 30.

[1-2. Power control device]
The power control device 20 (BEMS 20) is a subordinate management device for the CEMS 10, and controls power consumption / power generation state of power-related facilities (each of the load facility 31, the power storage facility 32, and the power generation facility 33) in the power management area 30. By monitoring, power demand and power supply management (also referred to as power supply / demand management) in the power management area 30 is performed. Further, the power control device 20 manages externally supplied power (reverse power flow) from the power management area 30 to the commercial power supply 16 based on a command from the CEMS 10. Furthermore, the power control device 20 supplies externally supplied power (rescue power) supplied from the power management region 30 to the other power management region 30 based on a request from the power control device 20 in the other power management region 30. Manage.

  The power control device 20 is a computer system having a CPU (Central Processing Unit), ROM, RAM, hard disk, input / output interface, and the like. A control program stored in a ROM or the like causes the CPU to function at least as an instruction unit for performing various information calculations, and causes an input / output interface or the like to function as an acquisition unit and an output unit. Is made to function as a storage unit for storing various information input from an external device (CEMS 10, other power control device 20 or the like).

  The load facility 31 consumes power from lighting fixtures, air conditioning facilities, fountains, EV chargers (electric vehicle chargers), video equipment, personal computers, network servers, copiers, fax machines, etc. installed in the power management area 30 It is a general term for equipment to be used.

  The power storage facility 32 is configured using a device (for example, a secondary battery) that performs a charging operation for storing electric power and a discharging operation for discharging the stored electric power. The power storage facility 32 is not particularly limited as long as it can perform a charging operation and a discharging operation. For example, the power storage facility 32 is not limited to a stationary type, and may be a portable type. Further, a secondary battery loaded on an electric vehicle (EV vehicle) can be used as the power storage facility 32.

  The power generation facility 33 is a power generation facility installed in the power management area 30, and may be a power generation facility using renewable natural energy such as a solar power generation facility or a wind power generation facility, or may be biomass, geothermal Or a power generation facility using a small motor (diesel engine or the like) as a power source.

  The power supply by the power generation facility 33 is not limited to power supply to the power management area 30 in which the power generation facility 33 is installed, but may be power supply to other power management areas 30 or individual loads 34. Further, the power generation facility 33 is configured to be able to adjust the amount of power generation depending on the power generation mode (for example, power generation facility using biomass, geothermal heat, power generation facility using a small generator as a power source, etc.). The power generation amount can be adjusted based on a command from the power control device 20 or the like.

  The power control apparatus 20 that has received the DR command performs DR setting for performing DR control for the restriction command period determined by the DR command in the future supply and demand management period. When the DR set period (restriction command period) arrives, the power control apparatus 20 reduces the power demand according to the power reduction amount determined by the DR command, such as the power related equipment (load equipment 31, power storage equipment 32). , Each of the power generation equipment 33) is controlled.

  Moreover, the power control apparatus 20 transmits / receives various information between CEMS10 and an electric power company side apparatus. For example, the power control device 20 receives a DR command or the like from the CEMS 10 as described above. In addition, the power control device 20 receives various information (power generation amount and the like) related to the power plant from the power company side device.

  Note that the power control device 20 may receive various types of information (such as the amount of power generation) regarding the power plant via the CEMS 10. That is, when the CEMS 10 receives and stores various information (power generation amount, etc.) related to the power plant from the power company side device, the power control device 20 stores various information (power generation amount, etc.) related to the power plant. Can be received via the CEMS 10.

  Furthermore, the power control device 20 transmits and receives various types of information to and from the power control device 20 in another power management area 30 via a communication path (not shown). For example, the power control device 20 can transmit various information (power generation amount, etc.) related to power related facilities (each of the load facility 31, the power storage facility 32, and the power generation facility 33) provided in the other power management region 30 to other power management regions 30. 30 from the power control device 20.

  As described above, the power control device 20 performs power supply and demand management of power-related facilities (each of the load facility 31, the power storage facility 32, and the power generation facility 33) in the power management region 30, and receives, for example, a DR command. If not, the power-related equipment is controlled so that the power supply / demand state as shown in FIG. 2 is obtained. In FIG. 2, load power Pg <b> 1 for supplying generated power PG in the power generation facility 33 to the load facility 31, power storage power Pg <b> 2 for supplying to the power storage facility 32, and external (commercial) The power supply state to be distributed to the power supply 16, the other power management area 30, the individual load 34, etc.) and the external supply power Pg3 to be supplied to the power supply 16 (PG = Pg1 + Pg2 + Pg3).

  At this time, the power control device 20 sets the load power Pg1 as the first priority, the storage power Pg2 as the second priority, and the external supply power Pg3 as the priority when determining the distribution destination of the generated power PG. The third priority. By controlling the power supply and demand state in its own power management area 30 based on such priorities, first the operation of the load facility 31 is ensured, then the power storage to the power storage facility 32 is performed, and a margin on that Electric power is transmitted to the outside as externally supplied power Pg3.

  The externally supplied power Pg3 can be used as, for example, reverse power flow from the power management area 30 to the commercial power supply 16 or rescue power supplied from the own power management area 30 to another power management area 30.

[1-3. DR compatible control process]
The power control apparatus 20 (BEMS 20) includes a control unit 21 that executes various processes as one of functions realized by a computer system. The DR correspondence control process among the various control processes executed by the control unit 21 will be described.

  In the DR correspondence control process, when the power control device 20 (control unit 21) receives a DR command from the management device 10 (CEMS 10), the power-related equipment (load equipment 31, power storage equipment 32, power generation equipment 33) in the power management area 30 is used. Is a process for controlling the power supply and demand situation. When the power control device 20 is activated, the DR correspondence control process is executed as a process in the control unit 21 at a predetermined execution cycle (in this embodiment, every minute).

FIG. 3 is a flowchart showing the processing contents of the DR correspondence control processing.
When the DR support control process is started, first, in S110 (S represents a step), it is determined whether or not a DR command has been received from the CEMS 10, and if an affirmative determination is made, the process proceeds to S120. finish.

  When an affirmative determination is made in S110 and the process proceeds to S120, in S120, the external supply power Pg3 is set as the first priority as the priority order for determining the distribution destination of the generated power PG. That is, the external supply power Pg3 is set as the highest priority supply destination of the generated power PG.

  In the next S130, in comparing the generated power PG and the reduction request power PDR based on the DR command, it is determined whether or not the generated power PG is larger than the reduction request power PDR, and the generated power PG is greater than the reduction request power PDR. Is larger, the determination is affirmative and the process proceeds to S150. If the generated power PG is less than or equal to the reduction request power PDR, the determination is negative and the process proceeds to S140.

  If a negative determination is made in S130 and the process proceeds to S140, charging of the power storage facility 32 is stopped and discharging of the power storage facility 32 is executed in S140. Accordingly, at least one of the power consumption L at the load facility 31 and the external supply power Pg3 (reduction request power PDR) is set as a supply destination of the discharge power from the power storage facility 32. At this time, the discharge power Bout discharged from the power storage facility 32 is a value obtained by subtracting the generated power PG from the total value of the power consumption L of the load facility 31 and the reduction request power PDR (Bout = L + PDR−PG).

  When an affirmative determination is made in S130 and the process proceeds to S150, in S150, the load power Pg1 is set as the second priority as the priority order when the distribution destination of the generated power PG is determined. That is, as the supply destination of the generated power PG, the external supply power Pg3 is set as the first priority, and the load power Pg1 is set as the second priority. In other words, the load power Pg1 is set as the highest priority supply destination of the margin power Pa1 (= PG-PDR) obtained by subtracting the reduction request power PDR (external supply power Pg3) from the generated power PG.

  In next S160, it is determined whether or not the power consumption L of the load facility 31 is equal to or larger than the marginal power Pa1 (= PG−PDR) obtained by subtracting the reduction request power PDR (external supply power Pg3) from the generated power PG. If it determines, it will transfer to S170, and if it determines negative, it will transfer to S210.

When an affirmative determination is made in S160 and the process proceeds to S170, charging of the power storage facility 32 is stopped in S170.
In the next S180, it is determined whether or not the power consumption L of the load facility 31 is equal to the marginal power Pa1 (= PG−PDR) obtained by subtracting the reduction request power PDR (external supply power Pg3) from the generated power PG. Then, the process proceeds to S190. If a negative determination is made, the process proceeds to S200.

  When an affirmative determination is made in S180 and the process proceeds to S190, in S190, the state of the power storage facility 32 is set to a state in which no discharge occurs. Thereby, the electrical storage facility 32 is not charged and is not discharged.

  When a negative determination is made in S180 and the process proceeds to S200, in S200, the state of the power storage facility 32 is set to a discharge state. Thereby, the load facility 31 is set as a supply destination of the discharge power Bout from the power storage facility 32.

  At this time, the discharge power Bout discharged from the power storage facility 32 is a value obtained by subtracting the generated power PG from the total value of the power consumption L of the load facility 31 and the reduction request power PDR (Bout = L + PDR−PG). The power supply and demand state at this time is shown in FIG. In FIG. 4, the generated power PG in the power generation facility 33 is set to be distributed to the load power Pg1 and the externally supplied power Pg3 (PG = Pg1 + Pg3), and the discharge power Bout is supplied to the load facility 31. The power supply state set as the discharge power Pb1 (Bout = Pb1) is shown.

  FIG. 4 shows the power supply / demand state when the total value of the load power Pg1 and the load discharge power Pb1 is equal to the power consumption L (L = Pg1 + Pb1). FIG. 4 illustrates a case where the amount of power that can be discharged by the power storage facility 32 is equal to or greater than the power consumption L of the load facility 31.

  If a negative determination is made in S160 and the process proceeds to S210, charging of the power storage facility 32 with the surplus power Pa1 (= PG−PDR) of the generated power PG is continued in S210. That is, the charging power Bin of the power storage facility 32 is set as the supply destination of the surplus power Pa1. At this time, the charging power Bin charged in the power storage facility 32 is a value obtained by subtracting the power consumption L and the reduction request power PDR of the load facility 31 from the generated power PG (Bin = PG−PDL−L).

If a negative determination is made in S110, or if any of steps S140, S190, S200, and S210 is completed, the present process ends.
The power control device 20 (the control unit 21) that executes such a DR-adaptive control process determines whether or not a DR command has been received. If the DR command is received (Yes in S110), the generated power As the PG distribution destination, the external supply power Pg3 is set as the first priority (S120). And the control part 21 is based on the comparison result of the electric power generation PG and the reduction request electric power PDR, the comparison result of the power consumption L and the margin electric power Pa1 (= PG-PDR), etc. Control the discharge state.

[1-4. effect]
As described above, the power control apparatus 20 (BEMS 20) of the present embodiment includes the control unit 21 that executes the DR correspondence control process.

  When the control unit 21 receives a DR command from the CEMS 10 in controlling power demand and power supply in the power-related equipment (load equipment 31, power storage equipment 32, power generation equipment 33) (positive determination in S110), the power generation equipment 33 As the supply destination of the generated power PG, the reduction request power PDR (external supply power Pg3) is set as the highest priority supply destination (S120).

  When receiving the DR command from the SEMS 10, the power control device 20 sets the reduction request power PDR (external supply power Pg3) as the highest priority supply destination of the generated power PG, so that the external region of the generated power PG It is possible to secure a larger amount of power that can be transmitted to (commercial power supply 16, other power management area 30, and individual load 34).

Therefore, the power control device 20 can increase the possibility of being able to cope with the DR command from the CEMS 10.
Next, when the reduction request power PDR requested by the DR command is smaller than the generated power PG (affirmative determination in S130), the control unit 21 of the power control device 20 determines the reduction request power PDR out of the generated power PG. At least the load facility 31 is set as a supply destination of the subtracted margin power Pa1 (= PG-PDR) (S150).

  Thereby, the surplus power Pa1 in the generated power PG can be supplied to the load facility 31, and the power supplied to the load facility 31 from the commercial power supply 16 can be reduced, and at least a part of the power supplied to the load facility 31 Can be supplemented by the surplus power Pa1.

  Next, when the power consumption L in the load facility 31 is equal to or greater than the surplus power Pa1 (= PG-PDR) (positive determination in S160), the control unit 21 of the power control device 20 charges the power storage facility 32. Stop (S170). Thereby, it is not necessary to secure the power required for charging the power storage facility 32, and the power demand in the power management area 30 can be reduced, so that it becomes easy to stabilize the power supply and demand in the power management area 30.

  Next, when the power consumption L in the load facility 31 is greater than the surplus power Pa1 (= PG-PDR) (the positive determination in S160 and the negative determination in S180), The discharge from the power storage facility 32 is performed, and the load facility 31 is set as a supply destination of the discharge power Bout from the power storage facility 32 (S200).

  Thus, in addition to the generated power PG (specifically, the surplus power Pa1 (= load power Pg1)), the discharge power Bout (load discharge power Pb1) from the power storage facility 32 can be supplied to the load facility 31. This makes it easy to secure the power consumption L necessary for the operation of the load facility 31.

  Next, when the power consumption L in the load facility 31 is smaller than the surplus power Pa1 (No in S160), the control unit 21 of the power control device 20 charges the power storage facility 32 as a supply destination of the surplus power Pa1. Electric power Bin is set (S210).

Thereby, the surplus power Pa1 can be stored in the power storage facility 32, and when the power is insufficient, the power shortage can be solved by discharging from the power storage facility 32.
Next, when the reduction request power PDR requested by the DR command is equal to or greater than the generated power PG (No determination in S130), the control unit 21 of the power control device 20 stops charging the power storage facility 32 and stores the power. Discharging from the facility 32 is performed, and at least one of the power consumption L at the load facility 31 and the external supply power Pg3 (reduction request power PDR) is set as a supply destination of the discharge power from the power storage facility 32 (S140).

  As a result, even when the reduction request power PDR cannot be secured by the generated power PG, at least a part of the shortage obtained by subtracting the generated power PG from the reduction request power PDR can be supplemented by the discharge power Bout of the power storage facility 32. Therefore, the possibility that the DR command can be handled can be increased.

[1-5. Correspondence of wording]
Here, the correspondence between words will be described.
The power control device 20 (BEMS 20) corresponds to an example of a power control device, the control unit 21 corresponds to an example of a power supply / demand control unit, the power management area 30 (30A) corresponds to an example of a power management area, Reference numeral 31 corresponds to an example of a power load facility, the power storage facility 32 corresponds to an example of a power storage facility, and the power generation facility 33 corresponds to an example of a power generation facility.

The commercial power supply 16, the management device 10 (CEMS 10), and the other power management area 30 (30B, 30C) correspond to an example of an external area, and the DR command corresponds to an example of a request for reducing power demand.
[2. Other Embodiments]
As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, In the range which does not deviate from the summary of this invention, it is possible to implement in various aspects.

  In the above-described embodiment, the DR correspondence control process is periodically executed at a predetermined execution cycle. However, the execution timing of the DR correspondence control process is not limited to such a form. For example, the DR correspondence control process may be executed when some condition is satisfied (for example, when a DR command is received). In that case, S110 may be omitted, or S110 may be executed for reconfirmation.

  In FIG. 1, for convenience, one load facility 31, one power storage facility 32, and one power generation facility 33 are illustrated as power-related facilities provided in one power management region 30. The power-related equipment controlled by is not limited to such a form. For example, a configuration in which a plurality of load facilities 31, power storage facilities 32, and power generation facilities 33 are provided in one power management region 30 may be employed.

  Next, in the above embodiment, the contents of S140 and S200 have been described on the assumption that the amount of power that can be discharged by the power storage facility 32 is greater than or equal to the power consumption L of the load facility 31. If the amount of power that can be discharged by the power storage facility 32 is smaller than the power consumption L of the load facility 31 during the execution of S140 or S200, by receiving power supply from the other power management area 30, You may comprise so that the shortage of electric power may be compensated.

  Next, the power control apparatus is not limited to the form (BEMS: Building Energy Management System) in which the power management area to be controlled is a building. For example, a form in which the power management area is a general home (HEMS: Home Energy Management System), a form in which the power management area is a factory (FEMS: Factory Energy Management System), and a form in which the power management area is an apartment (MEMS: Mansion Energy) Management System), a form in which the power management area is store distribution (REMS: Retail Energy Management System), a form in which the power management area is a shopping mall (SEMS: Store Energy Management System), a form in which the power management area is a predetermined area, etc. It may be.

  Next, the function of one component in each of the above embodiments may be shared by a plurality of components, or the function of a plurality of components may be exhibited by one component. Moreover, you may abbreviate | omit a part of structure of each said embodiment. In addition, at least a part of the configuration of each of the above embodiments may be added to or replaced with the configuration of the other above embodiments. In addition, all the aspects included in the technical idea specified from the wording described in the claims are embodiments of the present disclosure.

  In addition to the computer system described above, a host system having the computer system as a component, a program for causing the computer to function as the computer system, a non-transitional actual recording medium such as a semiconductor memory storing the program, and a concentration calculation method The present disclosure can also be realized in various forms.

  DESCRIPTION OF SYMBOLS 1 ... Power management system, 10 ... Management apparatus, 11 ... Communication path, 16 ... Commercial power supply, 17 ... Power line, 20 ... Power control apparatus, 21 ... Control part, 30 (30A, 30B, 30C) ... Power management area | region, 31 ... load equipment, 32 ... power storage equipment, 33 ... power generation equipment, 34 ... individual load.

Claims (7)

A power control device for controlling a power transmission state between a power management area where an electric power related facility is arranged and an external area,
The power-related facility includes a power load facility that consumes power, a power generation facility that generates power, and a power storage facility that stores and discharges power.
In controlling power demand and power supply in the power-related equipment, when a request for reducing power demand in the power management area is received from the external area, a supply destination of generated power in the power generation equipment is supplied to the external area. Provided with a power supply and demand control unit that sets external supply power that is supply power as the highest priority supply destination,
Power control device. When the reduction request power requested by the reduction request is smaller than the generated power, the power supply and demand control unit is at least the power load as a supply destination of marginal power obtained by subtracting the reduction request power from the generated power. Set up the equipment,
The power control apparatus according to claim 1. The power supply and demand control unit, when the power consumption in the power load facility is equal to or greater than the marginal power, stops charging the power storage facility,
The power control apparatus according to claim 2. The power supply and demand control unit performs discharging from the power storage facility when power consumption in the power load facility is greater than the marginal power, and at least the power load as a supply destination of the discharged power from the power storage facility Set up the equipment,
The power control apparatus according to claim 3. The power supply and demand control unit sets at least the charging power of the power storage facility as a supply destination of the surplus power when the power consumption in the power load facility is smaller than the surplus power,
The power control apparatus according to claim 2. The power supply and demand control unit, when the reduction request power requested in the reduction request is equal to or greater than the generated power, stops charging the power storage facility and discharges from the power storage facility. As a supply destination of the discharge power of, set at least one of the power consumption in the power load equipment and the external supply power,
The power control apparatus according to claim 1. A power control method for controlling a power transmission state between an electric power management area where an electric power related facility is arranged and an external area,
The power-related facility includes a power load facility that consumes power, a power generation facility that generates power, and a power storage facility that stores and discharges power.
In controlling power demand and power supply in the power-related equipment, when a request for reducing power demand in the power management area is received from the external area, a supply destination of generated power in the power generation equipment is supplied to the external area. Set the external power supply, which is the power supply, to the highest priority supply destination.
Power control method.

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