JP2018093719A - Power management device, power management method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve appropriate adjustment of electric power corresponding to a planned value simultaneous equal-amount correspondingly to an electric power management area in which a plurality of user facilities exist.SOLUTION: The power management device includes: a user facility classification unit which classifies a plurality of user facilities in an electric power management area to belong to at least either one of a first user facility group and a second user facility group; an electric power control unit which controls electric power equipment in the user facility belonging to a first user facility group so that a power generation plan developed correspondingly to the electric power management area is attained and controls electric power equipment in the user facility belonging to the second user facility group so that a demand plan developed correspondingly to the electric power management area is attained.SELECTED DRAWING: Figure 5

Description

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

  Under the plan value simultaneous amount system, the electric power company submits a power supply plan for power generation (reverse power flow) and demand (forward power flow) to the general power transmission and distribution business. It is required to be the same amount at the same time. In this case, if an imbalance occurs where the actual value is excessive or deficient with respect to the planned value, costs will be incurred for the adjustment of imbalance on the general transmission / distribution company side. Settlement corresponding to imbalance (imbalance settlement) is performed with general power transmission and distribution companies.

  As an electric utility, it is necessary to adjust the power so that payment by imbalance settlement does not occur. Therefore, the following power management apparatus is known. In other words, the power management apparatus calculates the sum of the value obtained by multiplying the power value procured from the renewable energy power generation facility by the first price coefficient and the value obtained by multiplying the power value procured from another power generation facility by the second price coefficient. The third price factor is multiplied by the difference between the procurement function, which is a function, and the planned power value procured from the renewable energy power generation facility minus the actual power value procured from the renewable energy power generation facility. Based on the imbalance function which is a function, the ratio of the electric power value procured from the renewable energy power generation facility is obtained (for example, refer to Patent Document 1).

JP 2015-230544 A

For example, a power management system called a TEMS (Town Energy Management System) or a CEMS (Community Energy Management System) that performs power control on a plurality of customer facilities in a predetermined power management area is known. For example, when an electric power company manages such a power management system, the electric power company may contract with a general power transmission and distribution company for a plan value simultaneous amount system in units of power management areas. In this case, since a power supply plan corresponding to the entire power management area is formulated, it is required to realize the same amount of plan values in the power management area.
However, Patent Document 1 merely describes a configuration for obtaining a ratio of electric power values procured from a renewable energy power generation facility by taking a single solar power generation facility as an example. For this reason, depending on the technique described in Patent Document 1, the adjustment corresponding to the same amount of the plan value is appropriately performed in response to the generated power and the variation in the demand power among a plurality of customer facilities in the power management area. It is difficult.

  The present invention has been made in view of such circumstances, and can appropriately adjust power corresponding to the same amount of planned values corresponding to a power management area where a plurality of customer facilities exist. For the purpose.

One aspect of the present invention for solving the above-described problem is that the plurality of customer facilities in the power management area belong to at least one of the first customer facility group and the second customer facility group. A consumer facility classification unit for performing classification, and controlling power facilities in a customer facility belonging to the first consumer facility group so that a power generation plan formulated corresponding to the power management area is achieved, A power management apparatus comprising: a power control unit that controls power equipment in a customer facility belonging to the second consumer facility group so that a demand plan formulated corresponding to a power management area is achieved.
Moreover, 1 aspect of this invention for solving the subject mentioned above belongs to at least any one of a 1st consumer facility group and a 2nd consumer facility group about the some consumer facility in an electric power management area. The customer facility classification unit for performing the classification as described above, and the power facility in the customer facility belonging to the first consumer facility group is controlled so that the power generation plan formulated corresponding to the power management area is achieved. A power control unit that controls power equipment in a consumer facility belonging to the second consumer facility group so that a demand plan formulated corresponding to the power management area is achieved, and the demand The home facility classification unit is provided when the actual power generation amount of the first consumer facility group has not reached the planned value of the power generation plan assigned to the first consumer facility group. In the case where the actual value of the demand amount of the second consumer facility group has not reached the difference between the planned value and the actual value or the planned value of the demand plan assigned to the second consumer facility group When there is a divergence between the planned value and the actual value, power that reclassifies any customer facility belonging to a group different from the group in which the divergence has occurred to belong to the group in which the divergence occurs It is a management device.

  One aspect of the present invention is a customer facility classification step of classifying a plurality of customer facilities in a power management area so as to belong to at least one of a first customer facility group and a second customer facility group. And control the power equipment in the customer facility belonging to the first consumer facility group so that the power generation plan formulated corresponding to the power management area is achieved, and formulated corresponding to the power management area The power management method performs a power control step of controlling power equipment in a customer facility belonging to the second consumer facility group so that the demand plan is achieved.

  One aspect of the present invention is a consumer that classifies a computer so as to belong to at least one of a first consumer facility group and a second consumer facility group with respect to a plurality of customer facilities in a power management area. The facility classification unit controls power facilities in a customer facility belonging to the first consumer facility group so that a power generation plan formulated corresponding to the power management area is achieved, and corresponds to the power management area. It is a program for functioning as a power control unit that controls power equipment in a customer facility belonging to the second consumer facility group so that the demand plan formulated in this way is achieved.

  As described above, according to the present invention, it is possible to appropriately adjust the power corresponding to the same amount of the planned value corresponding to the power management area where a plurality of customer facilities exist. It is done.

It is a figure which shows the structural example of the power management system in 1st Embodiment. It is a figure which shows the structural example of the electric equipment about the consumer facility in 1st Embodiment. It is a figure which shows the structural example of the controller in a customer facility in 1st Embodiment. It is a figure which shows the structural example of the power management apparatus in 1st Embodiment. It is a flowchart which shows the example of a process sequence which the power management apparatus in 1st Embodiment performs in relation to simultaneous plan amount control. It is a flowchart which shows an example of the customer facility classification | category process which the power management apparatus in 1st Embodiment performs. It is a flowchart which shows the example of a process sequence which the power management apparatus in 2nd Embodiment performs as a power generation plan corresponding | compatible group consumer facility power control. It is a flowchart which shows the example of a process sequence which the power management apparatus in 2nd Embodiment performs as a consumer plan electric power control in a demand plan corresponding group. It is a flowchart which shows an example of the customer facility classification | category process which the power management apparatus in 3rd Embodiment performs. It is a figure which shows the example of a mode of the group setting in 4th Embodiment. It is a flowchart explaining the process sequence example of the power management apparatus in 5th Embodiment. It is a flowchart explaining the process sequence example of the power management apparatus in 5th Embodiment.

<First Embodiment>
FIG. 1 shows an example of the overall configuration of a power management system in the present embodiment. The power management system according to the present embodiment collectively manages power in customer facilities such as houses, commercial facilities, and industrial facilities corresponding to a plurality of customer facilities in a predetermined region. Such a power management system corresponds to, for example, TEMS (Town Energy Management System), CEMS (Community Energy Management System), and the like.

The power management system according to the present embodiment performs power management for the electrical equipment for each customer facility 100 in a certain range of area shown as the power management area 10 in FIG. The customer facility 100 corresponds to, for example, a house, a commercial facility, or an industrial facility.
In addition, the area | region which the power management area 10 of this embodiment respond | corresponds may be formed by one area range, and may be formed by the some area range geographically dispersed.

In the present embodiment, the customer facility 100 includes a power generation device that generates power using a solar battery, and a storage battery. Further, the customer facility 100 may be provided with either a solar battery or a storage battery. Further, the customer facility 100 may be provided with neither a solar battery nor a storage battery.
The power generator and the storage battery provided in the customer facility 100 are grid-connected to the commercial power source. Accordingly, the customer facility 100 including the power generation device or the storage battery causes the power generated by the power generation device to be output or the power output from the storage battery due to the discharge to the power system (distribution network) of the commercial power source to flow backward. Power can be sold through.

  For example, the power management area 10 of the present embodiment has a contract corresponding to the plan value simultaneous amount system with a general power transmission and distribution company. That is, the operator of the power management area 10 formulates a power supply plan as the power management area 10 every predetermined unit planned time (for example, 30 minutes), and sends the formulated power reception plan to the general power transmission and distribution company. hand in. In addition, when the actual power supply in the power management area 10 is excessive or insufficient (imbalance) with respect to the power supply plan, the settlement corresponding to the imbalance between the electric power company and the general power transmission and distribution company. (Imbalance settlement) is performed.

The power reception plan in the present embodiment includes a power generation plan and a demand plan. The power generation plan is a plan value for the power management area 10 as a whole for the power to be reversely flowed through the distribution network. The demand plan is a plan value for the power management area 10 as a whole for power purchased from the distribution network in a forward current.
Under the plan value simultaneous amount system to which this embodiment corresponds, it is required that the results are achieved as planned for each of the power generation plan and the demand plan. That is, in the plan value simultaneous equal amount system to which this embodiment corresponds, it is required that the actual power flow reversely flowing from the power management area 10 is not excessive or deficient with respect to the power generation plan. It is required that there is no excess or deficiency in the actual power supply that receives the power flow.
In the present embodiment, the generated power refers to power that is caused to flow backward in the distribution network. In addition, demand power refers to power that flows forward from the distribution network.

In addition, the customer facility 100 in the power management area 10 of the present embodiment is classified so as to belong to any one of the three groups of the power generation plan corresponding group GP1, the demand plan corresponding group GP2, and the intermediate group GP3. Such group classification is performed by the power management apparatus 300.
The power generation plan correspondence group GP1 is a set of customer facilities 100 controlled to achieve the power generation plan.
The demand plan corresponding group GP2 is a set of customer facilities 100 controlled to achieve the demand plan.
The intermediate group GP3 is a set of customer facilities 100 that are controlled so that the power difference between the reverse power flow and the forward power flow is equal to or less than a certain value, that is, the generated power and the demand power are equal.

  As described above, the customer facility 100 includes a power generator and a storage battery, a solar cell and a storage battery, and a solar facility and a storage battery. There is. Among these, the customer facility 100 that is not provided with either a solar battery or a storage battery may be included in the demand plan corresponding group GP2. For the customer facility 100 that is not provided with either a solar battery or a storage battery, adjustment by charging / discharging operation of the storage battery cannot be performed. Then, what is necessary is just to enable it to compensate for the excess and deficiency with respect to the supply-and-demand plan which arises by the customer facility 100 which neither a solar cell nor a storage battery equips with the other customer facility 100 provided with a storage battery in the demand plan corresponding group GP2.

  In the present embodiment, the customer facility 100 belonging to the power generation plan corresponding group GP1 is the customer facility 100 classified as having a large amount of generated power. In addition, the customer facility 100 belonging to the demand plan corresponding group GP2 is the customer facility 100 classified as one with less generated power. In addition, the customer facility 100 belonging to the intermediate group GP3 is a customer facility 100 classified as a balance between generated power and demand power.

  The customer facility 100 can communicate with the power management apparatus 300 by being connected to the network NW.

  The power management apparatus 300 performs power control for the electrical equipment in the entire customer facility 100 belonging to the power management area 10. For this reason, the power management apparatus 300 of the figure is connected so as to be able to communicate with each of the customer facilities 100 via the network NW. Thereby, the power management apparatus 300 can control the operation | movement of the electric equipment with which the customer facility 100 is provided.

  FIG. 2 shows a configuration example of electrical equipment in the customer facility 100. The customer facility 100 in the figure includes a power meter 101, a distribution board 102, a power generation device 103, a storage battery 104, a load 105, a communication modem 106, and a customer facility controller 200. That is, this figure shows an example of a customer facility 100 that includes both a power generation device and a storage battery.

The power meter 101 measures demand power and generated power. That is, the power meter 101 measures received power. The received power is, for example, a difference between demand power and generated power.
In the customer facility 100, the power supplied to the distribution board 102 from the commercial power line DL on the general power transmission / distribution company side is the demand power. On the other hand, the power output from the power generation device 103 or the storage battery 104 and supplied from the distribution board 102 to the commercial power supply line DL via the power meter is generated power. When the forward current corresponding to the demand power is set to the forward direction, the received power is measured as a positive value if the generated power corresponding to the reverse tide is small compared to the demand power corresponding to the forward power. If the generated power is large, the received power is measured as a negative value.

  The distribution board 102 distributes and supplies the power supplied from the commercial power source to the storage battery 104, the load 105, and the like. Moreover, the distribution board 102 can output the electric power output from the power generator 103 to the commercial power supply line DL via the power meter 101 for reverse power flow.

  The power generation apparatus 103 is a facility that generates power by receiving sunlight. The power generation device 103 includes a solar cell and a PCS (Power Conditioning System). The power generation device 103 receives sunlight to generate electric power, and converts the electric power obtained by the electric power generation into alternating current by the PCS and outputs the alternating current.

The electric power generated by the power generation apparatus 103 can be supplied as a power source for the load 105. Further, the power generated by the power generation apparatus 103 can be charged in the storage battery 104.
In addition, the power generated by the power generation apparatus 103 can be reversely flowed by being output from the distribution board 102 via the power meter 101 to the commercial power supply line DL.

  The storage battery 104 is a facility for accumulating electric power input for charging, and discharging and outputting the accumulated electric power. The storage battery 104 includes, for example, a storage battery and an inverter. The storage battery accumulates (charges) power and outputs (discharges) the accumulated power. The inverter converts power for charging the storage battery from alternating current to direct current, and converts power output from the storage battery by discharge from direct current to alternating current. That is, the inverter performs bidirectional conversion of power input / output by the storage battery 104.

The storage battery 104 can be charged by inputting commercial power supplied through the distribution board 102. In addition, the storage battery 104 can be charged by inputting power generated by the power generation device 103.
Further, the storage battery 104 can supply the stored power as a power source for the load 105. Moreover, the storage battery 104 can be made to reverse-flow by outputting the accumulate | stored electric power to the commercial power supply line DL via the power meter 101 from the distribution board 102. FIG.

The load 105 collectively indicates predetermined devices and facilities that consume power for their own operation in the customer facility 100. It should be noted that the types and number of devices and equipment as loads included in each customer facility 100 may be different.
The load 105 can operate by inputting commercial power supplied from the distribution board 102. Further, the load 105 can operate by inputting power generated by the power generation device 103. Further, the load 105 can operate by inputting the power output from the storage battery 104.

  The communication modem 106 communicates with the power management apparatus 300 via the network NW.

The customer facility controller 200 controls electrical facilities (the power generation device 103, the storage battery 104, the load 105, the communication modem 106, and the like) in the customer facility 100.
Further, the customer facility controller 200 can input information on power consumption measured by the power meter 101, and can use the input power consumption information for various controls.

  FIG. 3 shows a configuration example of the customer facility controller 200 provided in the customer facility 100. The customer facility controller 200 shown in FIG. 1 includes an external communication interface 201, an external correspondence transceiver 202, an institution communication interface 203, an institution correspondence transceiver 204, a power collection unit 205, a control unit 206 and a storage unit 207.

The external communication interface 201 performs communication via the network NW via the communication modem 106, for example.
The external compatible transmission / reception unit 202 uses the external communication interface 201 to control data transmission / reception via the network NW.

The in-facility communication interface 203 communicates with electrical equipment and the like in the customer facility 100 in which the in-facility communication interface 203 is provided.
The in-facility correspondence transmission / reception unit 204 controls transmission / reception of data to / from the electrical equipment in the customer facility 100 via the in-facility communication interface 203.

  The power collection unit 205 collects power-related information in the customer facility. For example, the power collecting unit 205 can collect received power information measured by the power meter 101. The power collecting unit 205 may collect power generated by the power generation device, remaining amount (accumulated power) or charge / discharge power of the storage battery 104, load power (power consumption) due to the load 105, and the like.

  The control unit 206 executes various controls corresponding to functions as the customer facility controller 200. The control unit 206 transmits information on the generated power and the demand power collected by the power collection unit 205 to the power management apparatus 300.

Note that the power meter 101 may be a smart meter, for example, which may transmit information on the measured received power to the power management apparatus 300 via the communication line NL via the network NW. In this case, it is not necessary for the power collection unit 205 to collect the received power measured by the power meter 101.
The storage unit 207 stores various types of information used by the control unit 206.

  FIG. 4 shows a configuration example of the power management apparatus 300. The power management apparatus 300 in the figure includes a communication unit 301, a control unit 302, and a storage unit 303.

  The communication unit 301 communicates with the customer facility controller 200 in the customer facility 100 via the network NW.

The control unit 302 controls the operation of the electrical equipment of each customer facility 100 in the power management area 10. The control unit 302 of this embodiment includes a customer facility classification unit 321 and a power control unit 322.
The customer facility classification unit 321 includes, for a plurality of customer facilities in the power management area 10, a power generation plan corresponding group GP1 (an example of a first customer facility group) and a demand plan corresponding group GP2 (an example of a second customer facility group). ) And the intermediate group GP3 (an example of a third customer facility group).
Moreover, the customer facility classification | category part 321 classifies a group for every fixed time. Specifically, the customer facility classification unit 321 performs group classification for each unit planned time (for example, 30 minutes).

The power control unit 322 controls the power equipment in the customer facility 100 belonging to the power generation plan corresponding group GP1 so that the power generation plan formulated corresponding to the power management area 10 is achieved.
In addition, the power control unit 322 controls power equipment in the customer facility 100 belonging to the demand plan corresponding group GP2 so that the demand plan formulated corresponding to the power management area 10 is achieved.
In addition, the power control unit 322 controls the power equipment in the customer facility 100 belonging to the intermediate group so that the difference in power between the forward flow and the reverse flow as the intermediate group is equal to or less than a certain level.

  The storage unit 303 stores information used by the control unit 302 in power management. The storage unit 303 of the present embodiment stores power generation plan information 331, demand plan information 332, customer facility basic information 333, and customer facility classification information 334.

  The power generation plan information 331 is information indicating the power generated by the formulated power generation plan. The demand plan information 332 is information indicating power demand according to the formulated demand plan.

The customer facility basic information 333 includes basic information for each customer facility 100 in the power management area 10. The customer facility basic information corresponding to one customer facility 100 includes a customer facility ID that uniquely indicates the corresponding customer facility 100, a power facility provided in the corresponding customer facility 100, and a corresponding customer facility 100. Includes information such as the address of the controller 200 in the customer facility.
For each customer facility 100, the customer facility classification information 334 indicates which group of the power generation plan corresponding group GP1, the demand plan corresponding group GP2, and the intermediate group GP3 is classified by the customer facility classification unit 321. It is the information shown. Specifically, the customer facility classification information 334 is information in which a group ID indicating a classified group is associated with each customer facility ID, for example.

  The power management apparatus 300 of the present embodiment having the above-described configuration is configured to achieve both the power generation plan and the demand plan formulated corresponding to the power management area 10 (simultaneous planned value simultaneous control). ). With reference to the flowcharts of FIGS. 5 and 6, an example of a processing procedure executed by the power management apparatus 300 according to the present embodiment in association with the planned value simultaneous amount control will be described.

In FIG. 5, the customer facility classification unit 321 waits until the adjustment start time is reached (step S101—NO). Under the simultaneous plan value simultaneous amount system to which this embodiment corresponds, for example, the generated power and the demand power are totaled every unit planning time of 30 minutes, and the power generation plan for each unit planning time is calculated based on the totaled result. Develop a demand plan. The adjustment start time corresponds to the timing at which the unit plan time is started.
When the adjustment start time is reached (step S101—YES), the customer facility classification unit 321 executes customer facility classification processing (step S102).

The flowchart of FIG. 6 shows an example of the customer facility classification process as step S102. The customer facility classification unit 321 acquires the received power for each customer facility 100 in the power management area 10 (step S201).
At this time, the customer facility classification unit 321 transmits a received power request to the customer facility controller 200 for each customer facility 100. In response to receiving the received power request, the customer facility controller 200 transmits the received power information input from the power meter 101 to the power management apparatus 300 by the power collecting unit 205. The customer facility classification unit 321 acquires information on received power transmitted from the customer facility controller 200 of each customer facility 100 in this way.

As described above, when the forward flow corresponding to the demand power is set to the positive direction, if the generated power is small with respect to the demand power, the received power shows a positive value, and if the generated power is large with respect to the demand power, The received power shows a negative value. That is, in this case, the larger the received power value is, the larger the demand power is, and the smaller the received power value is, the more the generated power is.
Therefore, the customer facility classification unit 321 executes the following classification process based on the received power (step S202). In other words, the customer facility classification unit 321 assumes that the customer facility 100 in the power management area 10 has a large amount of generated power with respect to the demand power and a lot of demand power with respect to the generated power. Then, the generated power and the demand power are classified so as to correspond to any one of the three types (ie, the absolute value of the received power is equal to or less than a certain value). The customer facility classification unit 321 causes the customer facility 100 classified as having a large amount of generated power relative to the demand power to belong to the power generation plan corresponding group GP1. Moreover, the customer facility classification | category part 321 makes the customer facility 100 classified as a thing with much demand power with respect to generated power belong to the demand plan corresponding | compatible group GP2. Moreover, the customer facility classification | category part 321 makes the customer facility 100 classified as what the generated power and demand power have balanced belong to intermediate | middle group GP3.
The customer facility classification unit 321 is not particularly limited as an algorithm for classifying the customer facility 100 into any one of the three groups as described above. For example, the customer facility classification unit 321 may perform classification based on the threshold value of received power set for each of the three groups. Alternatively, the customer facility classification unit 321 may perform classification by a classification algorithm using machine learning.

  As a guideline, the absolute value of the difference between the average of the actual demand power and the average of the actual generated power in the previous unit planning time is about 2/3 of the PCS rating. The customer facilities 100 that are less than or equal to about ½ can be classified as belonging to the intermediate group GP3. Alternatively, a customer facility 100 whose absolute value of the difference between the actual power demand and the actual power generation in the previous unit planned time is less than the PCS rating or about 2/3 or less is assigned to the intermediate group GP3. Can be classified as belonging.

  The customer facility classification unit 321 stores the classification result obtained by the classification process in step S202 so as to update the customer facility classification information 334 (step S203).

  Returning to FIG. After the customer facility classification process in step S102, the power control unit 322 performs power generation plan corresponding group target power control (step S103), demand plan corresponding group target power control (step S104), and intermediate group target power control (step S105). ).

As the power generation plan corresponding group target power control in step S103, the power control unit 322 performs control so that, for example, a power generation plan formulated corresponding to the current unit planned time is achieved. For this purpose, the power control unit 322 acquires information on received power from the customer facility 100 belonging to the power generation plan corresponding group GP1 every predetermined time (for example, several minutes). The power control unit 322 determines the difference (reception difference) between the generated power value (actual generated power value) obtained based on the acquired received power and the generated power value (plan generated power value) indicated in the power generation plan. Is calculated. The power control unit 322 controls the charging / discharging operation of the storage battery 104 in the customer facility 100 belonging to the power generation plan corresponding group GP1 so that the calculated reception difference is eliminated.
That is, when the actual generated power value tends to be larger than the planned generated power value with respect to the calculated reception difference, the power control unit 322 stores the storage battery 104 in all or some of the customer facilities 100 of the power generation plan corresponding group GP1. The power generated by the power generation device 103 is charged. As a result, the actual generated power value can be suppressed and can be made equal to the planned generated power value.
On the other hand, when the actual generated power value tends to be smaller than the planned generated power value with respect to the calculated reception difference, the power control unit 322 stores the storage battery 104 in all or some of the customer facilities 100 of the power generation plan corresponding group GP1. Execute discharge to increase the generated power. As a result, the actual generated power value can be increased to be equal to the planned generated power value.
In addition, in controlling the charging / discharging operation of the storage battery 104 as described above, the power control unit 322 instructs the customer facility controller 200 in the customer facility 100 to control the charging / discharging operation of the storage battery 104.

Moreover, as the demand plan corresponding group target power control in step S104, the power control unit 322 performs control so that, for example, a demand plan formulated corresponding to the current unit planned time is achieved. For this reason, the power control unit 322 acquires information on received power from the customer facility 100 belonging to the demand plan corresponding group GP2 every predetermined time (for example, several minutes). The power control unit 322 determines the difference (reception difference) between the demand power value (actual demand power value) obtained based on the acquired received power and the demand power value (planned demand power value) indicated in the demand plan. Is calculated.
The power control unit 322 controls the charging / discharging operation of the storage battery 104 in the customer facility 100 belonging to the demand plan corresponding group GP2 so that the calculated receipt difference is eliminated.
That is, when the actual demand power value tends to be larger than the planned demand power value with respect to the calculated receipt difference, the power control unit 322 stores the storage battery 104 in all or some of the customer facilities 100 in the demand plan corresponding group GP2. Do not charge or discharge. Thereby, the charging power to the storage battery 104 is reduced, the actual demand power value is suppressed, and can be made equal to the planned demand power value.
On the other hand, when the actual demand power value tends to be smaller than the planned demand power value with respect to the calculated receipt difference, the power control unit 322 stores the storage battery 104 in all or some of the customer facilities 100 in the demand plan corresponding group GP2. Execute charging and increase power demand. As a result, the actual demand power value can be increased to be equal to the planned demand power value.

Further, as the intermediate group target power control in step S105, the power control unit 322 performs control so that the absolute value of the received power is equal to or less than a certain value for the entire intermediate group. Specifically, in the present embodiment, it is only necessary to perform control so that the received power becomes a control target value.
In the following description, a case where the control target value for received power is zero is taken as an example.
As a specific example of the control for this, for example, the power control unit 322 acquires information on received power from each customer facility 100 belonging to the intermediate group GP3 every predetermined time (for example, several minutes). The power control unit 322 controls the charge / discharge operation of the storage battery 104 so that the acquired absolute value of the received power becomes zero for each customer facility 100 belonging to the intermediate group GP3.
That is, when the demand power tends to be larger than the generated power, the storage battery 104 is not charged or discharged. Thereby, the charging power to the storage battery 104 is reduced, the demand power is suppressed, and the received power can be brought close to zero.
On the other hand, when the generated power tends to be larger than the demand power, if the actual demand power value tends to be smaller than the planned demand power value with respect to the calculated receipt difference, the storage battery 104 is charged. , Increase power demand. Thereby, demand power can be increased with respect to generated power, and received power can be made close to zero.
Such control is realized by the power control unit 322 instructing the customer facility controller 200 of the customer facility 100 to cause the customer facility controller 200 to perform the charge / discharge operation of the storage battery 104. .
In addition, it is good also as a value which gave the offset with respect to the normal value about the control target value of received electric power according to having become the state where the difference of generated electric power and demand electric power becomes large. That is, as a specific example, assuming that the control target value in normal times is 0 kW and the demand power is larger than the generated power, an offset value corresponding to the generated power is given. The received power may be easily brought close to zero by controlling the generated power of .5 kW as the control target value. Further, when the offset value is given in this way, in order to efficiently operate so as not to reverse from the offset side, the PCS of the storage battery 104 is intermittently at the maximum rating so that the generated power offset value is set from 0 kw. May be operated.

When power control as these steps S103, S104, and S105 is being executed, the power control unit 322 determines whether or not the unit planning time started in response to step S101 has ended (step S106). . The power control unit 322 continues the power control of steps S103, S104, and S105 as long as the unit planning time has not ended (step S106—NO).
When the unit plan time ends (step S106—YES), the processing shown in FIG.

  Thus, in this embodiment, after the classification of a group is updated according to the electric power state in each customer facility 100 for every unit plan time, the electric power control corresponding to every group is performed. Thereby, in the power management area 10 of the present embodiment, control corresponding to the same amount of plan values can be realized and the formulated power generation plan and demand plan can be achieved.

Here, the same amount control of this embodiment is also possible, for example, by classifying the customer facility 100 in the power management area 10 into two groups, a power generation plan corresponding group GP1 and a demand plan corresponding group GP2. .
However, especially when the customer facility 100 is a low-voltage one such as a general household, the influence of fluctuations in the output of the power generation device 103 due to the weather and time zone is large, and the power consumed in the customer facility 100 is also various. Of home appliances (air conditioners, cooking utensils, dryers, etc.) vary greatly.
Furthermore, in one customer facility 100, when the power output from the power generation device 103 and the total power consumption are close to each other, for example, in a unit planned time of 30 minutes, the power output from the power generation device 103 is performed for a few minutes. Since the power to be generated is larger than the total power consumption, reverse power flow is performed, but the total power consumption is larger than the power output from the power generator 103 for the next several minutes, and power is purchased by forward power flow. Is likely to occur. In addition, the difference between the generated power in the reverse power flow and the demand power in the forward power flow is small.
In such a situation, it may be difficult to control the charging / discharging operation of the storage battery 104 and perform power control corresponding to the power generation plan corresponding group GP1 or the demand plan corresponding group GP2 in accordance with the entire situation. For example, as a result of controlling the generated power to be 2 kW corresponding to a slight error with respect to the planned value, it is likely that the actual result will be a demand of 1 kW. In such a state, for example, not only readjustment in the power generation plan correspondence group GP1, but also readjustment on the demand plan correspondence group GP2 side may be necessary depending on the case, and the control becomes complicated. .

Therefore, in the present embodiment, an intermediate group GP3 is provided in addition to the power generation plan corresponding group GP1 and the demand plan corresponding group GP2. The intermediate group GP3 includes the customer facility 100 in which the power output from the power generation apparatus 103 and the total power consumption are close as described above.
In addition, the intermediate group GP3 is controlled so that the absolute value of the difference between the generated power and the demand power is always zero. For this purpose, it is only necessary to control the customer facility 100 so that the power output from the power generation device 103 is equal to the total power consumption, and such control is easy.
In addition, since the power generation plan corresponding group GP1 in this case can be a set of customer facilities 100 in which the amount of generated power is significant with respect to the demand power, the generated power of the power generation plan corresponding group GP1 is defined as a power generation plan. It becomes easy to control to be equivalent. Similarly, since the demand plan corresponding group GP2 in this case can be a set of customer facilities 100 in which the amount of demand power is remarkable with respect to the generated power, the demand power of the demand plan corresponding group GP2 can be used as the demand plan. It becomes easy to control so that it becomes the same amount.
In other words, in the present embodiment, by providing the intermediate group GP3, it is possible to easily realize the simultaneous plan value and amount control corresponding to each of the power generation plan and the demand plan.

Second Embodiment
Next, the second embodiment will be described. In the case of the previous first embodiment, for the power generation plan corresponding group GP1, the power management device 300 monitors the power state of the customer facility 100 belonging to the power generation plan corresponding group GP1, and the power generation plan is achieved. The charge / discharge operation of at least some of the customer facilities 100 in the power generation plan correspondence group GP1 was controlled. Similarly, for the demand plan corresponding group GP2, the power management apparatus 300 monitors the power state of the customer facility 100 belonging to the demand plan corresponding group GP2, and the demand plan corresponding group GP2 The charging / discharging operation of at least some of the customer facilities 100 was controlled.

  On the other hand, in the present embodiment, the power management apparatus 300 sets a control target value for the generated power to each of the customer facilities 100 belonging to the power generation plan corresponding group GP1 so that the power generation plan is achieved. Set. The customer facility controller 200 in the customer facility 100 controls the charging / discharging operation of the storage battery 104 so that the generated power is in accordance with the instructed control target value.

  Similarly, the power management apparatus 300 sets a control target value for demand power for each of the customer facilities 100 belonging to the demand plan corresponding group GP2 so that the demand plan is achieved. The customer facility controller 200 in the customer facility 100 controls the charging / discharging operation of the storage battery 104 so that the power demand is in accordance with the instructed control target value.

  For the intermediate group GP3, as in the first embodiment, for example, the customer facility controller 200 in each customer facility 100 has a difference between the generated power and the demand power of zero according to an instruction from the power management apparatus 300. The charge / discharge operation of the storage battery 104 is controlled so that

  The overall flow of processing executed by the power management apparatus 300 in the present embodiment for simultaneous control of the planned value is the same as in FIG. In addition, the power management apparatus 300 executes the processing shown in the flowchart of FIG. 7 below as the power generation plan corresponding group target power control in step S103, and shows the demand plan corresponding group target power control in step S104 in the flowchart of FIG. Execute the process.

First, the power generation plan corresponding group target power control shown in FIG. 7 will be described. The power control unit 322 acquires the power generation plan corresponding to the current unit planned time started in response to Step S101 from the power generation plan information 331 stored in the storage unit 303 (Step S301).
In addition, the power control unit 322 acquires actual generated power and actual demand power corresponding to the current time for each customer facility 100 belonging to the power generation plan corresponding group GP1 (step S302).

The power control unit 322 is based on the power generation plan acquired in step S301, the actual generated power corresponding to the current time for each customer facility 100 belonging to the power generation plan corresponding group GP1 acquired in step S302, and the actual demand power. A control target value for the generated power for each customer facility 100 is determined (step S303).
The power control unit 322 transmits the control target value determined for each customer facility 100 in step S303 to the corresponding customer facility 100 (step S304).
In response to the reception of the control target value, the customer facility controller 200 of each customer facility 100 belonging to the power generation plan corresponding group GP1 performs charge / discharge control of the storage battery 104 so that the generated power becomes the control target value. As a result, the planned value simultaneous amount control corresponding to the power generation plan as the power management area 10 is executed.

In addition, the process of the same figure may be performed once corresponding to every unit plan time, and may be performed for every fixed time which further divided the unit plan time.
In step S302, a predicted value of generated power and demand power in a period to be controlled may be acquired, and in step S303, a control target value may be determined based on the predicted value.

Next, the demand plan corresponding group target power control shown in FIG. 8 will be described. The power control unit 322 acquires a demand plan corresponding to the current unit planned time started corresponding to step S101 from the demand plan information 332 stored in the storage unit 303 (step S401).
In addition, the power control unit 322 acquires the actual generated power and the actual demand power corresponding to the current time for each customer facility 100 belonging to the demand plan corresponding group GP2 (step S402).

The power control unit 322 is based on the demand plan acquired in step S401 and the actual generated power and the actual demand power corresponding to the current time for each customer facility 100 belonging to the power generation plan corresponding group GP1 acquired in step S402. A control target value for power demand for each customer facility 100 is determined (step S403).
The power control unit 322 transmits the control target value determined for each customer facility 100 in step S403 to the corresponding customer facility 100 (step S404).
In response to receiving the control target value, the customer facility controller 200 of each customer facility 100 belonging to the demand plan corresponding group GP2 performs charge / discharge control of the storage battery 104 so that the demand power becomes the control target value. As a result, the plan value simultaneous amount control corresponding to the demand plan as the power management area 10 is executed.

Note that the processing in the figure may be performed once corresponding to each unit planned time as in the processing in FIG. 7, or is performed at regular time intervals that further divide the unit planned time. It may be a thing.
In step S402, the power control unit 322 acquires predicted values of generated power and demand power during the period to be controlled, and in step S403, determines a control target value based on the predicted value. Good.

<Third Embodiment>
Subsequently, the third embodiment will be described. In previous 1st Embodiment, the power management apparatus 300 performed the group classification | category of the customer facility 100 based on the generated electric power and the demand power for every customer facility 100. FIG. On the other hand, in this embodiment, group classification is performed based on the remaining amount (accumulated power) of the storage battery 104 for each customer facility 100.

  The overall flow of processing executed by the power management apparatus 300 in the present embodiment for simultaneous control of the planned value is the same as in FIG. In addition, the power management apparatus 300 executes the process shown in the flowchart of FIG. 9 below as the customer facility classification process in step S102. In addition, in the following description, in order to make the description simple and easy to understand, a case where the storage battery 104 is provided in each of the customer facilities 100 is taken as an example.

  The customer facility classification unit 321 acquires the remaining amount of the storage battery 104 for each customer facility 100 in the power management area 10 (step S601). At this time, the customer facility classification unit 321 requests the customer facility controller 200 of each customer facility 100 to notify the remaining battery level. The customer facility controller 200 transmits information indicating the remaining amount of the storage battery 104 to the power management area 10 in response to the request. The customer facility classification unit 321 acquires the remaining amount of the storage battery 104 of each customer facility 100 in this way.

Therefore, the customer facility classification unit 321 executes the following classification process based on the acquired remaining amount (step S602). In other words, the customer facility classification unit 321 includes, for the customer facility 100 in the power management area 10, a storage battery 104 that has a large remaining capacity, a storage battery 104 that has a small remaining capacity, The remaining amount is classified so as to correspond to any one of three types, that is, a middle amount that is neither too much nor too little.
The customer facility classification unit 321 causes the customer facility 100 classified as having a large remaining amount of the storage battery 104 to belong to the power generation plan corresponding group GP1. When the actual power generation is insufficient with respect to the power generation plan, it may be necessary to discharge from the storage battery 104. However, as the remaining amount of the storage battery 104 increases, it is easier to deal with such a situation.
Moreover, the customer facility classification | category part 321 makes the customer facility 100 classified as a thing with little remaining capacity of the storage battery 104 belong to the demand plan corresponding | compatible group GP2. When the actual power demand is insufficient with respect to the demand plan, the storage battery 104 may need to be charged. However, the smaller the remaining amount of the storage battery 104, the easier it is to cope with such a situation.
Moreover, the customer facility classification | category part 321 makes the customer facility 100 classified as what the remaining amount of the storage battery 104 is intermediate belong to intermediate group GP3.

The customer facility classification unit 321 is not particularly limited as an algorithm for classifying the customer facility 100 into any one of the three groups as described above. For example, the customer facility classification unit 321 may perform classification based on a threshold value for the remaining amount of storage battery set corresponding to each of the three groups. Alternatively, the customer facility classification unit 321 may perform classification by a classification algorithm using machine learning.
The customer facility classification unit 321 stores the classification result obtained by the classification process in step S602 so as to update the customer facility classification information 334 (step S603).

<Fourth embodiment>
Subsequently, a fourth embodiment will be described. The power management apparatus 300 according to the present embodiment classifies the customer facilities 100 in the power management area 10 as follows.
First, in the present embodiment, further subdivided groups are set in each of the power generation plan corresponding group GP1, the demand plan corresponding group GP2, and the intermediate group GP3.

  FIG. 10 shows an example of group setting in this embodiment. The customer facility classification unit 321 of the power management apparatus 300 according to the embodiment first converts the customer facility 100 into a power generation plan based on the generated power and the demand power for each customer facility 100 as in the first embodiment. Classification is made so as to belong to any one of the corresponding group GP1, the demand plan corresponding group GP2, and the intermediate group GP3.

  In addition, the customer facility classification unit 321 acquires the remaining amount of the storage battery 104 for each customer facility 100. The customer facility classification unit 321 further subdivides the generation plan correspondence group GP1, the demand plan correspondence group GP2, and the intermediate group GP3 based on the acquired remaining amount of the storage battery 104 for each customer facility 100 as follows. Group.

In other words, the customer facility classification unit 321 includes the first power generation plan corresponding subgroup GP1-1 having a large remaining amount of the storage battery 104 and the storage battery 104 having a small remaining amount for the customer facility 100 belonging to the power generation plan corresponding group GP1. It classify | categorizes into 2 power generation plan corresponding subgroup GP1-2.
In addition, the customer facility classification unit 321 includes the first demand plan-compatible subgroup GP2-1 having a large remaining amount of the storage battery 104 and the storage battery 104 having a small remaining amount for the customer facility 100 belonging to the demand plan corresponding group GP2. It classify | categorizes into 2 demand plan corresponding | compatible subgroup GP2-2.
Further, the customer facility classification unit 321 includes the first intermediate subgroup GP3-1 having a large remaining amount of the storage battery 104 and the second intermediate subgroup having a small remaining amount of the storage battery 104 for the customer facility 100 belonging to the intermediate group GP3. It is classified as GP3-2.

The power control unit 322 according to the present embodiment corresponds to the power generation plan corresponding group GP1, for example, an algorithm corresponding to each of the first power generation plan corresponding subgroup GP1-1 and the second power generation plan corresponding subgroup GP1-2. Thus, the control target value for each customer facility 100 may be set to perform power control.
Similarly, the power control unit 322 corresponds to the demand plan corresponding group GP2, for example, for the first demand plan corresponding subgroup GP2-1 and the second demand plan corresponding subgroup GP2-2, by an algorithm corresponding to each. A control target value for each customer facility 100 may be set to perform power control.
Similarly, the power control unit 322 corresponds to the intermediate group GP3, for example, for the first intermediate subgroup GP3-1 and the second intermediate subgroup GP3-2, for each customer facility 100 by an algorithm corresponding to each. A control target value may be set to perform power control.

  In the above embodiment, for example, one power management apparatus 300 performs power management for all customer facilities included in one TEMS or CEMS. However, in each group, a function equivalent to that of the power management apparatus 300 of the above embodiment is given to the customer facility controller 200 of a certain customer facility. Then, the customer facility controller 200 may perform power control in steps corresponding to the own group among steps S103, S104, and S105 in the group.

  When the power management area 10 is provided with a power generation facility shared between the customer facilities 100, the power control may be performed after the power generation facility is included in the power generation plan corresponding group GP1.

  A feed-in tariff (FIT) system is known. Under a contract by FIT, if the power generator 103 can generate a reverse power flow during power generation, the purchase price of power will be reduced. Therefore, when the power generation plan corresponding group GP1 includes the FIT contract customer facility 100, the FIT contract customer facility 100 is output by the power generation apparatus 103 without performing control by charging and discharging of the storage battery 104. You may cope by making electric power the maximum.

  In the above embodiment, the case where the power generation apparatus 103 includes a solar battery is taken as an example. However, for example, the power generation apparatus 103 may be a power generation apparatus that generates power using renewable energy, such as wind power generation or geothermal power generation.

<Fifth Embodiment>
Subsequently, a fifth embodiment will be described. In the embodiment described above, the customer facility classification unit 321 of the power management apparatus 300 includes a plurality of customer facilities (for example, a first customer facility group (power generation plan corresponding group GP1), a second customer facility group (demand The case has been described in which the group belonging to the plan correspondence group GP2) or the third customer facility group (intermediate group GP3)) can be classified at regular intervals. For example, by classifying every fixed time (unit planned time; 30 minutes), according to changes in power usage (demand) over time, changes in the remaining amount of storage battery, changes in power generation, etc. The classification can be performed again for each customer facility. In this embodiment, a case will be described in which the customer facility classification unit 321 reclassifies some of the customer facilities of the group classified last time into different groups when performing classification at regular intervals. In this embodiment, the description of the parts common to the above-described embodiment will be omitted, and the parts having different functions and operations will be described.

  When performing classification again, the customer facility classification unit 321 does not reach the actual value of the power generation amount of the first consumer facility group with respect to the plan value of the power generation plan assigned to the first consumer facility group. When the actual value of the demand amount of the second consumer facility group has not reached the difference between the planned value and the actual value or the planned value of the demand plan assigned to the second consumer facility group When there is a divergence between the planned value and the actual value in, any customer facility belonging to a group different from the group in which the divergence occurs is reclassified to belong to the group in which the divergence occurs.

  In addition, when reclassifying, the customer facility classification unit 321 determines the degree of power generation or power demand allocated to the group among any customer facilities belonging to a group different from the group in which the divergence occurs. Reclassify in order from the customer facility with the smallest.

  In addition, when performing reclassification, the customer facility classification unit 321 includes the capacity of the storage battery in the customer facility and the customer among the customer facilities belonging to a group different from the group in which the deviation occurs. Reclassify the customer facility according to the order according to the relationship with the generated power or demand power of the facility.

  Moreover, the customer facility classification | category part 321 makes the difference of the electric power of the said 1st consumer facility group, the said 2nd consumer facility group, and a forward tide flow and a reverse tide flow below fixed about a some consumer facility. As described above, when classification is performed so as to belong to any one of the third consumer facility groups that are targets controlled by the power control unit, and reclassification is performed, any of the third consumer facility groups The customer facility is classified so as to belong to the same group as the customer facility whose degree of deviation exceeds a predetermined standard.

Next, a processing procedure example of the power management apparatus according to the fifth embodiment will be described with reference to the flowchart of FIG.
In this figure, Step S101 and Steps S103 to S106 are the same as those in the flowchart shown in FIG. 5, but the contents of the processing in Step S102 are partly different, and also include Step S150 in FIG. It is different from the flowchart.
In step S101, if the adjustment start time has not arrived, the customer facility classification unit 321 determines again whether or not the adjustment start time has arrived after the lapse of the fixed wait time (step S101-NO). When the adjustment start time is reached (step S101—YES), the customer facility classification unit 321 executes customer facility classification processing (step S102A). The customer facility classification process in this step is executed from step S201 to step S203 in the flowchart of FIG. 6 in the same manner as the flowchart shown in FIG. 5, but in this embodiment, when reclassification is performed, The contents of the classification process in step S202 are partially different.

  FIG. 12 is a flowchart for explaining the operation of the power management apparatus when reclassification is performed in step S202 of FIG. When performing step reclassification, the customer facility classification unit 321 has not yet achieved the actual value of the power generation amount of the first customer facility group with respect to the plan value of the power generation plan assigned to the first customer facility group. It is determined whether or not there is (step S2021). When the actual value of the power generation amount of the first consumer facility group has not reached the planned value of the power generation plan assigned to the first consumer facility group (step S2021-YES), that is, the first consumer When the actual value of the power generation amount of the first customer facility group has not reached the planned value of the power generation plan assigned to the facility group, the customer facility classification unit 321 determines the demand of the second customer facility group. It is determined whether or not the actual power value has not reached the plan value of the demand plan for demand power (step S2022). When the actual value of the demand power of the second consumer facility group has not reached the plan value of the demand plan of demand power, that is, for the plan value of the demand plan assigned to the second consumer facility group If the actual power demand value of the second consumer facility group cannot be reached, the consumer facility classification unit 321 performs reclassification for both the first consumer facility group and the second consumer facility group. (Step S2023). If the actual value of each of the first customer facility group and the second customer facility group does not reach the planned value, the plan cannot be achieved for any group, so reclassify both groups. Thus, classification can be made for the purpose of achieving the plans for both groups.

On the other hand, in step S2022, when the actual value of the second consumer facility group does not reach the planned value (step S2022), that is, when the actual value has achieved the planned value, the customer facility The classification unit 321 classifies some of the customer facilities in the second customer facility group so as to belong to the first customer facility group (step S2024). Since the second customer facility group has achieved the planned value, it can be considered that there is a surplus in power demand, and some of the customer facilities in the second customer facility group become the first customer facility group. Even if it belongs, it is thought that there is little influence on achievement of the planned value of the second consumer facility group. Therefore, by classifying some of the customer facilities of the second customer facility group so as to belong to the first customer facility group, it is possible to increase the number of customer facilities that generate power in the first customer facility group. . As a result, the difference between the planned value and the actual value when the actual power generation amount of the first consumer facility group has not reached the planned value of the power generation plan assigned to the first consumer facility group. And the planned value of the first consumer facility can be achieved.
Here, the customer facility classifying unit 321 includes the degree of demand power (for example, the magnitude of demand power (kW) or the amount of power of demand power (of the demand power) among any of the customer facilities belonging to the second customer facility group. You may make it reclassify in an order from a customer facility with the magnitude | size of kWh). For example, among the customer facilities of the second consumer facility group, the customer facility having the smallest actual power demand value may be classified as belonging to the first consumer facility group, and the actual power demand value is A plurality (for example, a predetermined number) of customer facilities may be classified in order from the smallest customer facility so as to belong to the first consumer facility group.
In this way, by classifying the customer facilities in order from the customer facility having the smallest actual power demand value, the impact on the entire customer facility group (particularly the plan in the second customer facility group). It is possible to perform reclassification with a reduced value).
Further, the customer facility classification unit 321 performs reclassification according to the order according to the relationship between the capacity of the storage battery in the customer facility belonging to the second consumer facility group and the demand power of the customer facility, not the degree of the demand power. May be performed.
For example, the customer facility classification unit 321 can reclassify a customer facility having a larger difference between the remaining amount of the storage battery and the demand power so as to preferentially belong to the first consumer facility group. In such a case, among the customer facilities belonging to the second customer facility group shown in (A) to (D) below, (A) is given the highest priority, and (A), (B), ( Reclassify customer facilities according to the order of C) and (D).
(A) Customer facilities with low power demand and a large amount of remaining storage battery Priority is given because power demand is a smaller category than other customer facilities in the second customer facility group, and it is difficult to respond to increased demand due to charging. Can be classified into the first customer facility group (B) a customer facility with a small demand power and a small amount of remaining storage battery The demand power is a smaller category than other customer facilities in the second customer facility group, Since there is room to increase demand by charging as needed, depending on the size of the difference, it can be classified into the first consumer facility group. (C) Consumer facilities with large demand and large storage battery power demand This category is larger than other customer facilities in the second customer facility group, and can be classified into the first customer facility group in some cases while remaining in the second customer facility group as much as possible (D Customer facilities with large demand power and low remaining battery capacity Demand power is a category larger than other customer facilities in the second consumer facility group, and can be further increased by charging as needed. So keep it as the second consumer facility group

  On the other hand, when the actual value of the power generation amount of the first consumer facility group has not yet reached the planned value of the power generation plan assigned to the first consumer facility group in step S2021 (step S2021-NO), That is, when the actual value of the power generation amount of the first customer facility group has reached the planned value of the power generation plan assigned to the first customer facility group, the customer facility classification unit 321 includes the second It is determined whether or not the actual value of the demand power of the customer facility group has not reached the plan value of the demand plan for demand power (step S2025).

When the actual value of the demand power of the second consumer facility group has not reached the planned value of the demand plan of the demand power (step S2025-YES), that is, the demand allocated to the second consumer facility group When the actual power demand value of the second consumer facility group has not reached the planned value of the plan, the customer facility classification unit 321 selects a part of the customer facilities of the first consumer facility group. Classification is performed so as to belong to the two consumer facility group (step S2026). Since the first customer facility group has achieved the planned value, it can be considered that there is a surplus in the generated power, and some of the customer facilities in the first customer facility group become the second customer facility group. Even if it belongs, it is thought that there is little influence on achievement of the planned value of the first consumer facility group. Therefore, by classifying some of the customer facilities in the first customer facility group so as to belong to the second customer facility group, it is possible to increase the power demand in the second customer facility group, The planned value of the home facility can be achieved.
Here, the customer facility classification unit 321 includes the degree of generated power (for example, the magnitude of generated power (kW), or the amount of generated power (of the generated power) among any of the customer facilities belonging to the first customer facility group. You may make it reclassify in an order from a customer facility with the magnitude | size of kWh). For example, among the customer facilities in the first customer facility group, the customer facility having the smallest actual power generation value may be classified so as to belong to the second consumer facility group. A plurality (for example, a predetermined number) of customer facilities may be classified in order from the smallest customer facility so as to belong to the second consumer facility group.
In this way, by classifying the customer facilities having the smallest actual value of generated power so as to belong to the second customer facility group in order, the impact on the entire customer facility group (particularly the plan in the first customer facility group). It is possible to perform reclassification with a reduced value).
Further, the customer facility classification unit 321 performs reclassification according to the order according to the relationship between the capacity of the storage battery in the customer facility belonging to the first consumer facility group and the generated power of the customer facility, not the degree of the demand power. May be performed.
For example, the customer facility classification unit 321 can reclassify a customer facility having a larger difference between the chargeable amount of the storage battery and the generated power so as to belong to the second consumer facility group preferentially. In such a case, among the customer facilities belonging to the first customer facility group shown in (a) to (d) below, (a) is given the highest priority, and (a), (b), ( c) Reclassify customer facilities according to the order of (d).
(A) Customer facility with small generated power and large chargeable amount of storage battery (low remaining capacity) This is a category where the generated power is smaller than other customer facilities in the first consumer facility group, and power generation increases due to discharge (B) Consumer facilities where the generated power is small and the rechargeable amount of the storage battery is small (the remaining capacity is large). The generated power is the first demand. Since it is a smaller category than other customer facilities in the house facility group and there is room to contribute to power generation by discharging as necessary, it can be classified into the second consumer facility group depending on the magnitude of the difference (c ) Consumer facilities with large generated power and a large chargeable amount of storage battery (low remaining capacity) This is a category where generated power is larger than other customer facilities in the first consumer facility group. Can be classified as a second customer facility group while remaining in the customer facility group (d) A customer facility with a large amount of generated power and a small amount of rechargeable storage battery (a large remaining capacity) Since it is a larger category than other customer facilities in the house facility group, and it is possible to further increase the amount of power generation by discharging as necessary, keep it as the first consumer facility group as much as possible

  On the other hand, when the actual value of the demand power of the second consumer facility group does not reach the planned value of the demand plan of the demand power (step S2025 -NO), the customer facility classification unit 321, When the actual power demand value of the second customer facility group has reached the planned value of the demand plan assigned to the two customer facility group, the customer facility classification unit 321 Since both the group and the second customer facility group have achieved the planned value, reclassification is not performed. However, when the difference between the planned value and the actual value in the first customer facility group exceeds a predetermined reference value, the customer facility classification unit 321 is a part of the customers in the first customer facility group. The facility may be classified so as to belong to the second consumer facility group. Thereby, the difference between the planned value and the actual value in the first consumer facility group can be reduced. Further, the customer facility classifying unit 321 may select a part of the customers in the second customer facility group when the difference between the planned value and the actual value in the second customer facility group exceeds a predetermined reference value. You may make it classify | categorize a facility so that it may belong to a 1st consumer facility group. Thereby, the difference between the planned value and the actual value in the second consumer facility group can be reduced.

  Returning to FIG. 11, when the unit plan time has ended in step S106 (step S106—YES), it is determined whether or not to end the power control (step S150), and when the power control is not ended (step S106). (S150-NO), the process proceeds to step S101, where it is determined whether or not the adjustment start time has been reached (step S101). If the power control is to be terminated (step S150-YES), the process is terminated.

  In the fifth embodiment described above, when reclassification is performed, any customer facility belonging to the third consumer facility group is reclassified to the first consumer facility group or the second consumer facility group. May be. For example, when the actual value of generated power has not reached the planned value in the power generation plan, any customer facility belonging to the third consumer facility group belongs to the first consumer facility group. May be reclassified. Moreover, when the actual value of the demand power has not reached the planned value in the demand plan, any customer facility belonging to the third customer facility group belongs to the second consumer facility group. May be reclassified. Thus, when reclassifying the customer facility of the third consumer facility group so as to belong to the first consumer facility group or the second consumer facility group, the third consumer facility group is the first consumer facility group. Since it does not belong to any of the second customer facility group, the customer facility as a whole can be reclassified while reducing the influence that the actual results deviate from the plan.

  In the above-described fifth embodiment, when reclassification is performed, the customer facility classification unit 321 performs reclassification including a prediction result of performing photovoltaic power generation prediction and a prediction result of performing power demand prediction. You may make it perform. In this case, for example, when it is predicted that the demand power increases in the customer facility of (B) described above and the demand power decreases in the customer facility shown in (C), (B) and (C) You may change the priority. Also, for example, when it is predicted that the generated power will increase at the customer facility (b) described above and the generated power will decrease at the customer facility shown in (c), the priority of (b) and (c) You may change the order.

  It should be noted that a program for realizing the functions as the power management apparatus 300 and the customer facility controller 200 described above is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system. The processing as the power management apparatus 300 and the customer facility controller 200 described above may be performed by executing the processing. Here, “loading and executing a program recorded on a recording medium into a computer system” includes installing the program in the computer system. The “computer system” here includes an OS and hardware such as peripheral devices. Further, the “computer system” may include a plurality of computer devices connected via a network including a communication line such as the Internet, WAN, LAN, and dedicated line. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. As described above, the recording medium storing the program may be a non-transitory recording medium such as a CD-ROM. The recording medium also includes a recording medium provided inside or outside that is accessible from the distribution server in order to distribute the program. The code of the program stored in the recording medium of the distribution server may be different from the code of the program that can be executed by the terminal device. That is, the format stored in the distribution server is not limited as long as it can be downloaded from the distribution server and installed in a form that can be executed by the terminal device. Note that the program may be divided into a plurality of parts, downloaded at different timings, and combined in the terminal device, or the distribution server that distributes each of the divided programs may be different. Furthermore, a “computer-readable recording medium” holds a program for a certain period of time, such as a volatile memory (RAM) inside a computer system that becomes a server or client when the program is transmitted via a network. Including things. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

10 power management area, 100 customer facility, 101 power meter, 102 distribution board, 1
03 power generator, 104 storage battery, 105 load, 106 communication modem, 200 controller in customer facility, 201 external communication interface, 202 external transmission / reception unit,
203 In-facility communication interface, 204 In-facility compatible transmission / reception unit, 205 Power collection unit, 206 Control unit, 207 Storage unit, 300 Power management device, 301 Communication unit, 302
Control unit, 303 storage unit, 321 customer facility classification unit, 322 power control unit, 331
Power generation plan information, 332 demand plan information, 333 customer facility basic information, 334 customer facility classification information

Claims (18)

A customer facility classification unit that classifies the plurality of customer facilities in the power management area so as to belong to at least one of the first customer facility group and the second customer facility group;
The power facility in the customer facility belonging to the first consumer facility group is controlled so that the power generation plan formulated in correspondence with the power management area is achieved, and formulated in correspondence with the power management area. A power management apparatus comprising: a power control unit that controls power equipment in a customer facility belonging to the second consumer facility group so that a demand plan is achieved. The customer facility classification unit
Classifying the plurality of customer facilities so as to belong to any one of the first customer facility group, the second customer facility group, and the third customer facility group;
The power control unit
The power equipment in the customer facility belonging to the third consumer facility group is controlled so that the difference in power between the forward flow and the reverse flow as the third consumer facility group is equal to or less than a certain level. The power management apparatus described. The customer facility classification unit
Of the plurality of consumer facilities, a consumer facility classified as having a large amount of generated power belongs to the first consumer facility group, and a customer facility classified as having a large amount of demand power is the second The power management apparatus according to claim 1 or 2, which belongs to a customer facility group. The customer facility classification unit
The power management apparatus according to claim 2, wherein among the plurality of customer facilities, a customer facility classified as a balance between generated power and demand power belongs to the third consumer facility group. The customer facility classification unit
Of the plurality of customer facilities, a customer facility classified as having a large remaining amount of storage battery belongs to the first consumer facility group, and among the plurality of customer facilities, the remaining amount of storage battery The power management apparatus according to claim 1 or 2, wherein a customer facility classified as having a small amount belongs to the second consumer facility group. The customer facility classification unit
The customer facility classified into the thing in the middle state where the remaining amount of a storage battery is not too much among the plurality of customer facilities belongs to the third consumer facility group. Power management device. The customer facility classification unit
The customer facility belonging to the first consumer facility group and the customer facility belonging to the second consumer facility group are further classified into groups subdivided according to the remaining amount of storage battery. Item 4. The power management apparatus according to Item 3. The customer facility classification unit
The power management apparatus according to claim 4, wherein the customer facilities belonging to the third consumer facility group are further classified into groups that are subdivided according to the remaining amount of the storage battery. The power management apparatus according to any one of claims 1 to 8, wherein the customer facility classification unit performs the classification at regular intervals. The power control unit
Control charging / discharging of the storage battery in the customer facility belonging to the first customer facility group so that the power generation plan is achieved, and demand belonging to the second customer facility group so that the demand plan is achieved The power management apparatus according to any one of claims 1 to 9, which controls charging / discharging of a storage battery in a home facility. The power control unit
The charging / discharging of the storage battery in the consumer facility belonging to the third consumer facility group is controlled so that the difference between the forward flow and the reverse flow as the third consumer facility group becomes a certain value or less. , 6 or 8, The power management apparatus according to any one of the above. The power control unit
Determining a control target value of power control for each customer facility belonging to the first customer facility group for achieving the power generation plan;
Determining a control target value of power control for each customer facility belonging to the second customer facility group for allowing the demand plan to be achieved;
The power management apparatus according to any one of claims 1 to 11, wherein power control according to the determined control target value is performed in each customer facility. A customer facility classification unit that classifies the plurality of customer facilities in the power management area so as to belong to at least one of the first customer facility group and the second customer facility group;
The power facility in the customer facility belonging to the first consumer facility group is controlled so that the power generation plan formulated in correspondence with the power management area is achieved, and formulated in correspondence with the power management area. A power control unit that controls power equipment in a customer facility belonging to the second customer facility group so that a demand plan is achieved;
The customer facility classification unit
Deviation between the planned value and the actual value when the actual power generation amount of the first consumer facility group has not reached the planned value of the power generation plan assigned to the first consumer facility group, or There was a discrepancy between the planned value and the actual value when the actual value of the demand amount of the second consumer facility group did not reach the planned value of the demand plan assigned to the second consumer facility group In this case, the power management apparatus reclassifies any customer facility belonging to a group different from the group in which the divergence occurs so as to belong to the group in which the divergence occurs. The customer facility classification unit
When reclassification is performed, reclassification is performed in order from the customer facility belonging to a group different from the group in which the divergence has occurred, from the customer facility with the smallest power generation or power demand allocated to the group. The power management apparatus according to claim 13. The customer facility classification unit
When performing reclassification, among any customer facilities belonging to a group different from the group in which the divergence occurs, the relationship between the capacity of the storage battery in the customer facility and the generated power or demand power of the customer facility The power management apparatus according to claim 13, wherein the customer facilities are reclassified according to an order according to the conditions. The customer facility classification unit
The plurality of customer facilities are controlled by the power control unit such that the difference in power between the first customer facility group, the second customer facility group, and the forward and reverse power flows is equal to or less than a certain value. Classifying it to belong to any one of the third consumer facility groups
When reclassifying, any customer facility belonging to the third consumer facility group is classified so as to belong to the same group as the customer facility whose degree of deviation exceeds a predetermined standard. The power management apparatus according to any one of the above. A customer facility classification step for classifying the plurality of customer facilities in the power management area so as to belong to at least one of the first customer facility group and the second customer facility group;
The power facility in the customer facility belonging to the first consumer facility group is controlled so that the power generation plan formulated in correspondence with the power management area is achieved, and formulated in correspondence with the power management area. A power management method for executing a power control step of controlling power equipment in a consumer facility belonging to the second consumer facility group so that a demand plan is achieved. Computer
A customer facility classification unit that classifies a plurality of customer facilities in the power management area so as to belong to at least one of the first customer facility group and the second customer facility group,
The power facility in the customer facility belonging to the first consumer facility group is controlled so that the power generation plan formulated in correspondence with the power management area is achieved, and formulated in correspondence with the power management area. A program for functioning as a power control unit for controlling power equipment in a customer facility belonging to the second customer facility group so that a demand plan is achieved.

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