JP6743953B2 - Energy management system, energy management method and computer program - Google Patents

Description

The present invention relates to an energy management system that manages an operating state of power equipment including at least one type of target equipment of a power generator and a power storage device, an energy management method executed in this system, and a computer applied to the system. Regarding the program.

As this type of energy management system, there is known a system that uses a mathematical programming method to calculate an operation plan of a power device included in a power facility (see Patent Document 1, etc.).
This energy management system sets a constraint condition including a device condition modeled by a variable for each time step of an electric power facility to be managed, and the objective function regarding, for example, cost is minimized under the set constraint condition. Thus, the solution (operation plan) of the variable of the electric power facility for each time step is calculated by the mathematical programming method.

The operation plan calculated by the energy management system is specifically a relatively long-term operation plan based on the predicted value of the amount of power generation and demand, and the energy management system operates in accordance with the calculated operation plan. Instruct the power equipment.
Therefore, the expected conditions that meet the objective function may not be achieved due to an incorrect forecast of power generation or demand.

As a solution to the above, it is conceivable to repeat the operation plan calculation in anticipation of a long-term future with a short-term cycle of the order of seconds or milliseconds. Is very difficult in terms of processing load.
Therefore, for target equipment such as power generators and power storage devices that can adjust power, control is executed based on the current power supply and demand status and the current output power of the target equipment, and disturbances that cannot be predicted by the operation plan are real-time. There is known a technique for compensating for the above (see Patent Document 1, Non-Patent Documents 1 and 2).

JP, 2009-141993, A

Yasuhiro Kojima, Masanobu Furuoshio, Shizuka Nakamura "Development and Verification Study of Supply and Demand Control Function for Microgrid", Denkigaku B, Volume 128, No. 2 (2008) Kayomi Hayashi, Yuichi Shimazaki, Hideyuki Kondo, Yuto Nagata, Tatsuya Iisaka, Toru Katsuno, Yosuke Nakanishi "Development of Supply and Demand Control System for Microgrid", 2013 IEEJ Power and Energy Division Conference (2013)

In all of the conventional control technologies that compensate an operation plan in real time, the characteristics of the target equipment to be used in the power equipment are specified in advance, and then the characteristics corresponding to the specified type of the target equipment (power storage device Unlike the aircraft, it is possible to recharge and it is necessary to manage the remaining charge.) By preparing a specialized algorithm for each, a method is adopted to bring the current situation including disturbances closer to the operation plan.
Therefore, in the conventional control technology, when changing the type of target equipment, such as changing from an existing power storage device to a different power storage device, charging is possible or primary energy that is the basis of power generation is limited. However, there is a drawback in that an algorithm corresponding to the characteristics such as whether or not is required, and it is not possible to easily and flexibly deal with the change of the target equipment.

In view of such conventional problems, the present invention appropriately adjusts the deviation from the operation plan regardless of the type of the target equipment in the energy management system that controls the power equipment based on the operation plan and manages the power supply and demand. The purpose is to

(1) A system according to an aspect of the present invention is an energy management system that manages power supply and demand based on an operation plan, and is a current power supply and demand state and at least one of a power generation device and a power storage device 1 or Based on the acquisition unit that acquires the output power of the power equipment including the target equipment that is a plurality of devices, and the acquired current power supply and demand status and the output power that are acquired, conform to the planned value of the operation plan as much as possible. And a control unit that executes the process of calculating the output command value of the target facility using an integrated algorithm that does not distinguish the type of the target facility.

(8) Another aspect of the present invention is a computer program for causing a computer to function as an energy management system that manages power supply and demand based on an operation plan, wherein the computer has a current power supply and demand state and power generation. Based on the acquired current power supply and demand state and the acquired output power, and an acquisition unit that acquires the output power of the power equipment including the target equipment that is at least one type of one or a plurality of devices and power storage devices The process of calculating the output command value of the target facility that conforms to the planned value of the operation plan as much as possible is caused to function as a control unit that uses an integrated algorithm that does not distinguish the type of the target facility.

(9) Another aspect of the present invention is an energy management method for managing power supply and demand based on an operation plan, which is a current power supply and demand state and one or more of at least one of a power generation device and a power storage device. A step of acquiring an output power of an electric power equipment including a target equipment that is a device, and based on the acquired current power supply and demand state and the output power, the method of applying the planned value of the operation plan as much as possible. Executing the process of calculating the output command value of the target equipment by using an integrated algorithm that does not distinguish the type of the target equipment.

According to the present invention, it is possible to appropriately adjust the deviation from the operation plan regardless of the type of the target equipment.

It is a block diagram showing the whole electric power system composition illustrated as an embodiment of the present invention. It is a block diagram which shows the structural example of an energy management system. It is a flow chart which shows an example of the contents of processing of a dynamic redistribution control part. It is a flowchart which shows an example of the calculation algorithm of a required charging amount. It is explanatory drawing which shows the calculation formula of a plan deviation rate. It is a control block diagram of the electric power calculation part which calculates the electric power distributed to a target facility. It is an explanatory view showing an example of a rule of electric power distribution. It is a flow chart which shows an example of calculation processing of an output command value. 5 is a graph (first half) showing a simulation result of dynamic redistribution control. 5 is a graph (second half) showing a simulation result of dynamic redistribution control.

<Outline of Embodiment of the Present Invention>
Hereinafter, the outline of embodiments of the present invention will be listed and described.
(1) A system according to an embodiment of the present invention is an energy management system that manages power supply and demand based on an operation plan, and includes a current power supply and demand state and a plurality of devices including both a power generation device and a power storage device. An acquisition unit that acquires output power of an electric power facility including a certain target facility, and the target facility according to a deviation from a planned value of the operation plan, based on the acquired current power supply and demand state and the output power that have been acquired. And a control unit that executes the process of calculating the output command value by using an integrated algorithm that includes a control block having a priority order that can be set according to the number of target facilities.

According to the energy management system of the present embodiment, the control unit executes the process of calculating the output command value of the target equipment by using the integrated algorithm including the control block of the priority order that can be set according to the number of the target equipment. Therefore, the deviation from the operation plan can be appropriately adjusted regardless of the type of the target equipment.
Therefore, even if the type of the target equipment used for the power equipment is changed, it is not necessary to reinvent a specialized algorithm unlike the conventional control technology, and it is easy and flexible to change the type of the target equipment. Can respond.

(2) In the energy management system according to the present embodiment, the integrated algorithm applies the target to the control block having a priority order dynamically determined according to a degree of deviation of the current output power from the planned value. By allocating the equipment, it is possible to employ an algorithm for allocating the electric power to be reduced or increased with respect to the current power supply and demand state to each of the plurality of target equipments.
If this algorithm is adopted , the target equipment is assigned to the priority control block that is dynamically determined according to the degree of deviation from the planned value, so control that is as compatible as possible with a long-term operation plan should be executed. You can

(3) For example, when the electric power received from the electric power company is less than the target electric power, the control unit may sequentially from the target electric power to the received electric power in order from the power storage device having a large degree of insufficient charge amount with respect to the planned value. The power receiving surplus that is less than or equal to the subtracted value may be distributed to the charging of the power storage device.

In this case, since the surplus power reception is distributed to the charging of the power storage device in order from the power storage device with the larger degree of insufficient charge amount with respect to the planned value, the period during which the amount of charge of the power storage device returns to the planned value is shortened and Based energy management can be restored early.

(4) Further, when the surplus power remains after the distribution of the power reception surplus, the control unit sequentially performs the surplus from the power generation device or the power storage device in which the excess degree of the output power with respect to the planned value is large. The electric power may be distributed to the reduction of the power generation amount of the power generation device or the reduction of the discharge amount of the power storage device.

In this case, since the surplus power is distributed to the decrease in the power generation amount of the power generation device or the decrease in the discharge amount of the power storage device in order from the power generation device or the power storage device in which the excess degree of the output power with respect to the planned value is large, Alternatively, the period for returning from the state in which the power storage device is discharged to the planned value is shortened, and the energy management based on the operation plan can be quickly recovered.

(5) Further, when the electric power received from the electric power company is equal to or higher than the target electric power, the control unit sequentially supplies the electric power in order from the power generation device or the power storage device in which the degree of lack of the output power with respect to the planned value is large. The electric power to be increased in the equipment may be distributed to the increase in the power generation amount of the power generation device or the increase in the discharge amount of the power storage device.

In this case, the power to be increased in the power facility is distributed to the increase in the power generation amount of the power generation device or the increase in the discharge amount of the power storage device in order from the power generation device or the power storage device having a large degree of insufficient output power with respect to the planned value. , It is possible to prevent the received power from the power company from exceeding the target power.
Further, the period for returning to the planned value from the state in which the power generation amount of the power generation device or the discharge amount of the power storage device is short is shortened, and the energy management based on the operation plan can be quickly recovered.

(6) In the energy management system of the present embodiment, when the control section allocates the output reserve capacity of the target facility, which has a margin to further increase the current output power, to charging, the calculation target of the output reserve capacity. It is preferable to include the power generation device and exclude the power storage device from the calculation target of the output reserve capacity.

In this way, when a plurality of power storage devices are included in the power facility, the discharge power of one power storage device is used for the charge power of the other power storage device, which prevents unnecessary power transfer that is not in the operation plan. can do.

(7) In the energy management system of the present embodiment, when the control section allocates the output reserve capacity of the target equipment having a margin to further increase the current output power for charging, the calculation target of the output reserve capacity. In addition, it is preferable that the output capacity of the power storage device including the power generation device and the power storage device in which the command according to the operation plan is discharge is set to the upper limit of the discharge amount specified in the operation plan.

By doing this, when a plurality of power storage devices are included in the power facility, it is possible that one target storage battery is discharged to exceed the planned value and the other target storage battery is charged with charging power. It is possible to prevent this, and it is possible to suppress wasteful power transfer as much as possible.

(8) The computer program of the present embodiment relates to a program for causing a computer to execute the processing performed by the energy management system described above.
Therefore, the computer program of the present embodiment has the same effects as those of the energy management system described above.

(9) The energy management method of the present embodiment relates to a management method performed by the above energy management system.
Therefore, the energy management method of this embodiment has the same effects as the above-described energy management system.

<Details of the embodiment of the present invention>
Hereinafter, details of an embodiment of the present invention will be described with reference to the drawings. Note that at least a part of the embodiments described below may be arbitrarily combined.
[Overall system configuration]
FIG. 1 is a block diagram showing the overall configuration of a power system according to an embodiment of the present invention.

As shown in FIG. 1, the power system of the present embodiment is an energy management system (hereinafter, also referred to as “EMS”) that manages operating states of a power facility 1 to be managed and various power facilities included in the power facility 1. 2) is included.
The power facility 1 of the present embodiment is, for example, a power facility installed in a factory, and includes a distribution network including distribution lines 3 wired in the factory, load devices 4 and 5 connected to the distribution lines 3, and power storage. The device 6 and the power generators 7 and 8 are provided.

The load device 4 is, for example, an adjustable load device capable of adjusting power consumption such as lighting and an air conditioner. The load device 5 is composed of a non-adjustable load device such as a production machine of a factory in which power adjustment is impossible or is not permitted even if it is possible.
These load devices 4 and 5 are connected to the distribution line 3 via a device such as a smart tap (not shown) or a smart distribution board capable of controlling and measuring power information.

The power storage device 6 is, for example, a redox flow (RF) battery, a lithium ion battery, a molten salt battery, a lead storage battery, or the like. The power storage device 6 is connected to the distribution line 3 via the DC/AC converter 11.
The power generation device 7 is, for example, a natural energy power generation device that converts natural energy such as sunlight and wind power into electric energy. The power generation device 8 is a power generation device that converts combustion energy such as gas or diesel oil or energy due to chemical change such as a fuel cell into electric energy. These power generators 7 and 8 are connected to the distribution line 3 via the DC/AC converter 11, respectively.

In the power facility 1 of the present embodiment, the distribution line 3 is connected to the commercial power source 14 via the smart meter (power meter) 15. Therefore, the power facility 1 can be grid-connected to the commercial power supply 14.

The EMS 2 can communicate with various types of power equipment of the power equipment 1 via the communication line 16 by a wired LAN (Local Area Network) or another communication method. The communication between the EMS 2 and the power equipment may be wireless communication such as wireless LAN.
The EMS 2 can transmit a plurality of types of control commands E1 to E3 to the communicable power equipment included in the power equipment 1. The EMS 2 can receive the current information S1 indicating the operation status of the power equipment 1 from those power equipment with which communication is possible.

For example, the EMS 2 can connect or disconnect the smart tap to which the load devices 4 and 5 are connected by the control command E1. The EMS 2 can also adjust the power consumption of the load device 4 capable of adjusting the power consumption according to the control command E1.
The EMS 2 can connect or disconnect the DC/AC converter 11 of the power storage device 6 according to the control command E2.

In addition, the EMS 2 can adjust the charging power or the discharging power with respect to the power storage device 6 connected to the distribution line 3 according to the control command E2.
The EMS 2 can connect or disconnect the DC/AC converters 11 of the power generators 7 and 8 according to the control command E3. The EMS 2 can also adjust the power generation amount of the power generation device 8 capable of adjusting the power generation amount according to the control command E3. For the power generation device 7 capable of suppressing the output, the power generation amount can be adjusted by the control command E3.

The EMS 2 stores the current information S1 including the connection status (on/off) of the various converters 10 to 12 included in the power equipment 1 and the smart tap, the operating status of each device 4 to 8 and the power value for a predetermined time ( It is collected every 1 second, for example.
The current information S1 also includes the current power demand of the power facility 1. The current power demand can be calculated by summing the received power (measurement value of the smart meter 15) and the generated power at the current time. The current power demand may be calculated by summing the current power consumption (actual operation results) of the load devices 4 and 5.

[Structure of energy management system]
FIG. 2 is a block diagram showing a configuration example of the energy management system 2.
As shown in FIG. 2, the EMS 2 is configured by a computer device including a control device 21 and a storage device 22. The control device 21 is an information processing device including a CPU (Central Processing Unit) and the like. The storage device 22 includes a memory such as a RAM (Random Access Memory) and the like, and a large-capacity storage unit such as an HDD (Hard Disk Drive) and the like.

A communication device 23, an input device 24, and a display device 25 are connected to the computer device that constitutes the EMS 2.
The communication device 23 communicates with various types of power equipment included in the power equipment 1 by a wired LAN, a wireless LAN, or another communication method. The input device 24 is composed of a mouse, a keyboard and the like for an administrator of the power equipment 1 to input an operation. The display device 25 includes a liquid crystal display or the like for presenting the image output by the control device 21 to the administrator.

The control device 21 reads and executes a computer program stored in the storage device 22 to execute communication control for the communication device 23, device control for the input device 24 and the display device 25, and various controls such as energy management described later. I do.
For example, the communication device 23 transmits the control commands E1 to E3 to the communicable power equipment included in the power equipment 1 based on the communication control of the control device 21, and outputs the current information S1 indicating the operating status of the power equipment 1 as power. It is received from the equipment and transferred to the control device 21.

The communication device 23 can be connected to a public communication network such as the Internet, and can also communicate with another server device (not shown) connected to the public communication network.
The input device 24 transmits an operation signal according to an operation input of the administrator to the control device 21 based on device control related to the input of the control device 21.
The display device 25 displays an image signal including a still image or a moving image input from the control device 21 on the screen of the device itself, based on device control related to the output of the control device 21.

As shown in FIG. 2, the control device 21 of the EMS 2 includes a planning unit 30 and a dynamic redistribution control unit 40 as functional portions related to energy management for the electric power equipment 1.
The plan making unit 30 is a functional unit that calculates an operation plan of the power facility 1 for a relatively long period (for example, 48 hours). The dynamic redistribution control unit 40 is a functional unit that executes control on a predetermined control target according to the disturbance during execution of the operation plan.

In the present embodiment, it is assumed that the dynamic redistribution control unit 40 controls the operation plan calculation result performed by the plan planning unit 30.
However, the dynamic redistribution control unit 40 can control not only the result of the operation plan output by the plan planning unit 30 but also the operation plan or schedule manually input.

The dynamic redistribution control unit 40 transmits the control commands E2 and E3 to the output value of the predetermined target facility that is the control target, based on the received operation plan, the current state of the facility, and the state of demand power.
The dynamic redistribution control unit 40 calculates the output value of the predetermined target equipment so that the received power of the target equipment becomes less than or equal to the target power and the operation plan can be maintained as much as possible, and the calculated output value is used as the target equipment. Send.

The communication device 23 may also send the operation plan created by the planning unit 30 and the control commands E2 and E3 created by the dynamic redistribution control unit to the server device of the administrator via a public communication network such as the Internet. it can.
The server device of the administrator can also communicate with other computer terminals via the public communication network. Therefore, the administrator (user) of the energy management system 2 accesses the server device from another computer terminal, so that not only the contents of the operation plan generated by the planning unit 30 but also the dynamic redistribution control unit 40 You can browse the created control commands.

[Challenges and solutions for long-term planning of EMS]
The plan planned by the control device 21 is a relatively long-term operation plan of the power facility calculated based on the predicted value of the power generation/demand amount. The operation plan by the control device 21 has the following two main problems.

Issue 1: There are cases in which the intended conditions, which are the objectives of the plan, cannot be achieved due to incorrect forecasts of power generation and demand.
Problem 2: As a solution to Problem 1, it is conceivable to repeat the operation plan calculation in anticipation of a long-term future with a short-term cycle of the order of seconds or milliseconds. However, such rescheduling calculation with high frequency is very difficult in terms of processing load.

Therefore, in the present embodiment, the dynamic redistribution control unit 40 sets the current facility in the power facility 1 for the target facility whose power is adjustable (for example, the power storage device 6 and the power generation device 8 in which the generated power is adjustable in FIG. 1). The output command value is calculated based on the power supply and demand state and the current output power of the target facility.

On the other hand, when a plurality of target facilities such as the power storage device 6 and the power generation device 8 are included in the power facility 1, when the plurality of target facilities are controlled independently, the optimum output distribution is obtained for the plurality of target facilities. Sometimes it doesn't. Therefore, it is necessary to determine the output of the target equipment based on a plan that is optimal over the long term and overall.

Therefore, in the present embodiment, the dynamic redistribution control unit 40 allocates the output of the power storage device 6 and the power generation device 8 according to the priority order that is dynamically set according to the deviation from the planned value.
As a result, the EMS 2 that appropriately responds to unplanned disturbance is realized while complying with the operation plan calculated by the plan making unit 30 as much as possible.

In addition, in the present embodiment, the remaining charge amount of the power storage device 6 may be deviated from the plan due to the dynamic reallocation control, but it is operated as planned as much as possible.
Hereinafter, the content of the control performed by the dynamic redistribution control unit 40 (hereinafter, referred to as “dynamic redistribution control”) will be described. Prior to the description, first, the definition of terms used in the dynamic redistribution control will be described. To do.

[Definition of terms in dynamic reallocation control]
“Target generator”: The generator 8 that can control the output (generated power) of the target equipment controlled by the dynamic redistribution controller 40. As an example of the target generator, for example, a gas generator or the like can be considered.
“Target storage battery”: The power storage device 6 that can control the output (discharge power) of the target equipment that is the control target of the dynamic redistribution control unit 40. Examples of the target storage battery include chemical batteries such as electric double layer capacitors, flywheels and heat pumps.

“Received power”: The current power value (instantaneous value) purchased from the power company.
"Contracted power": It is an average power value for 30 minutes that must not be exceeded by the contract with the power company.
“Target power”: Power that has a predetermined margin taken into account so that contract power≧target power, and is defined as power that must not be exceeded in dynamic redistribution control.
"Receiving power capacity": Power that is calculated by (target power-power received).

"Output surplus": It is electric power that has room for increasing the output of at least one of the target generator and the target storage battery.
"Chargeable power": Power that can charge the target storage battery from at least one of the received power, the target power, and the remaining output power.
"Power capable of reducing output": Power that can reduce the output of at least one of the target generator and the target storage battery from at least one of the received power and the target power.

"Power output increase": Power that is required to increase the output of at least one of the target generator and the target storage battery in consideration of the received power and the target power.
“Charge required amount”: The amount of electric power that must be charged to the target storage battery in order to protect the remaining charge amount of the target storage battery given by the plan.
"Plan deviation rate": The output power of the target generator (generated power) and the output power of the target storage battery (discharged power) are numerical values indicating the deviation from the planned value.

[Outline of processing contents of real-time controller]
FIG. 3 is a flowchart showing an example of processing contents of the dynamic redistribution control unit 40.
As shown in FIG. 3, the dynamic redistribution control unit 40 uses the plan value acquired from the plan planning unit 30 as input information, and a predetermined calculation cycle in which each process from step ST11 to step ST15 can be evaluated almost in real time. The output command value obtained as a result of the calculation is output in each calculation cycle.

That is, the dynamic redistribution control unit 40 inputs the planned value by the planning unit 30→determines the state of each power facility (step ST11)→calculates the required charging amount (step ST12)→updates the planned deviation rate (step ST13). )->Calculation of electric power distributed to the target equipment (step ST14)->Calculation of output command value (step ST15).
The operation cycle of the dynamic redistribution control unit 40 is extremely short as compared with the replanning period (for example, 15 minutes) of the planning unit 30 and is set to, for example, 1 to 10 seconds.

The process of step ST11 of FIG. 3 (state determination of each power facility) is whether or not the power facility included in the operation plan is the target facility of the dynamic redistribution control, and whether the target facility is in the operating state. It is performed by determining whether or not.
The dynamic redistribution control unit 40 calculates the next required charging amount when the power equipment included in the operation plan is the target equipment of the dynamic redistribution control and the state variable of the target equipment is the operation. (Step ST12) is executed.

The contents of the process (calculation of the required charging amount) in step ST12 of FIG. 3 are described in FIG.
The details of the process of step ST13 of FIG. 3 (update of the plan deviation rate) are described in FIG.
The power calculation unit 41 that performs the process of step ST14 of FIG. 3 (calculation of power to be distributed to the target equipment) is described in FIG. 6, and the rule of power distribution is described in FIG. 7.
The contents of the processing (calculation of the planned value) of step ST15 of FIG. 3 are described in FIG. Therefore, the contents of the dynamic redistribution control will be specifically described below with reference to FIGS. 4 to 8.

[Calculation of required charging amount]
FIG. 4 is a flowchart showing an example of a calculation algorithm of the required charging amount.
As shown in FIG. 4, the dynamic redistribution control unit 40 first takes over the value of the required charging amount of the previous step as the “required charging amount” of the current step (step S10).
Next, the dynamic redistribution control unit 40 subtracts the output value (discharged power) of the target storage battery in the previous step from the value of the inherited required charging amount (step S12).

Next, the dynamic redistribution control unit 40 determines whether the operation plan in the plan planning unit 30 has been updated (step S14).
If the above determination result is affirmative, the dynamic redistribution control unit 40 resets the value of the required charging amount to "0" (step S16), and shifts the processing to step S18. If the above determination result is negative, the dynamic redistribution control unit 40 shifts the processing to step S18 without resetting the value of the required charging amount.

Then, in step S18, the dynamic redistribution control unit 40 adds the output plan value for the target storage battery in the current step to the value of the required charge amount, and adopts the value after the addition as the value of the required charge amount in the current step. To do.
When the power facility 1 has a plurality of target chargers, the dynamic redistribution control unit 40 performs the process of FIG. 4 for each target charger to obtain the value of the required charging amount of each target charger. The required charging amount of this embodiment has the following meanings depending on whether the value is a negative value or 0 or more.

When the value of "necessary charge"<0:
The target storage battery needs to be charged. The absolute value of the required charging amount value represents the required charging amount.
When the value of "necessary charge" ≥ 0:
The target storage battery does not need to be charged. The absolute value of the required charge amount value represents the amount of electric power that can reduce the required amount of charge, that is, the amount of electric power that can be discharged.

[Update of plan deviation rate]
FIG. 5 is an explanatory diagram showing a formula for calculating the planned deviation rate.
When the value of the required charging amount in the current step is obtained, the dynamic redistribution control unit 40 uses the calculation formulas (1) and (2) shown in FIG. 5 to target power generators and target storage batteries included in the power facility 1. For, calculate the "plan deviation rate" in the current step.

Specifically, when the required charging amount <0, that is, when the target storage battery needs to be charged, the dynamic redistribution control unit 40 obtains the planned deviation rate by the following equation (1).
Plan deviation rate = (planned output value-actual output value + required charging amount)/maximum possible output range (1)
When the required charging amount≧0, that is, when the target storage battery does not require charging or the target generator, the dynamic redistribution control unit 40 obtains the planned deviation rate by the following equation (2). ..
Plan deviation rate = (planned output value-actual output value)/maximum possible output width (2)

Here, unlike (1), in (2), the necessary charge amount is not added by the numerator, but in this embodiment, when the remaining charge amount exceeds the plan, the discharge is intentionally performed as planned. The intent is not to perform control to set the remaining charge level of. When it is desired to control the remaining charge amount as planned, the equations (1) and (2) are the same.
Further, the division by the maximum outputable width is performed for the purpose of normalizing the equipment having different output capabilities, and therefore may be omitted. Alternatively, division may be performed by different standards for the purpose of normalizing the standards not limited to the output capability.

When the planned deviation rate calculated by the above calculation formula is a value in the positive direction with 0 as a reference, it means a degree of power generation that is less than the planned value.
That is, as the planned deviation rate is a positive value and its absolute value is larger, the power generation amount is smaller than the plan, and the output (power generation amount) may be increased in the next step.

Further, when the planned deviation rate calculated as described above is a value in the negative direction with 0 as a reference, it means a degree of excessive power generation or insufficient charging as compared with the plan.
In other words, when the target facility is the target generator, the more the plan deviation rate is negative and the larger its absolute value is, the target generator is generating more power than planned, and the output is reduced in the next step. Means good.

In addition, when the target equipment is the target storage battery, the negative value of the plan deviation rate and the larger its absolute value means that the target charger is less charged than the plan, and even if the charging is increased in the next step. It means good.
In addition, when the planned deviation rate of the target equipment is 0, it means that the target equipment is outputting as planned and the output should be maintained also in the next step.

[Functional configuration of power calculator]
FIG. 6 is a control block diagram of the power calculation unit 41 that calculates the power to be distributed to the target equipment. The power calculation unit 41 in FIG. 6 is one of the functional blocks used by the dynamic redistribution control unit 40.
As illustrated in FIG. 6, the power calculation unit 41 includes a control block B1 for the target equipment A1 and a control block B2 for the target equipment A2 in order from the highest priority (upper side of FIG. 6). ing.

The control block B1 with the higher priority has a limiter that narrows the range of the input power to a range in which the target equipment A1 can output within the control cycle.
The power to be distributed first is input to the limiter of the control block B1. In the control block B1, the current output power of the target equipment A1 is added to the output power of the limiter, and the output command value for the target equipment A2 is calculated.

The control block B2 having the lower priority has a limiter that limits the range of the input power to a range in which the target equipment B1 can output within the control cycle.
To the limiter of the control block B2, the remaining power after power is distributed to the control block B1 (power value obtained by subtracting the output power of the limiter of the control block B1 from the power to be initially distributed) is input. In the control block B2, the current output power of the target equipment A2 is added to the output power of the limiter, and the output command value for the target equipment A2 is calculated.

As indicated by a “balloon” in FIG. 6, the power calculation unit 41 of the dynamic redistribution control unit 40 determines a priority order according to the type of the plan deviation rate, and based on the determined priority order, a plurality of targets are selected. It is determined which target equipment of the equipment is assigned to which control block B1, B2.
Although FIG. 6 exemplifies the case of the two control blocks B1 and B2, the actual power calculation unit 41 corresponds to the number of target facilities (one or three or more). Control blocks are arranged in order from the higher priority to the lower priority.

As shown in FIG. 6, in the power calculation unit 41 of the present embodiment, the type of the target equipment is not preset in the control blocks B1 and B2 that calculate the output command value of the target equipment A1 and A2, and the priority order is set. Either the target generator or the target storage battery can be assigned according to
That is, the power calculation unit 41 of the dynamic redistribution control unit 40 performs processing for calculating the output command value of the target equipments A1 and A2 such as whether the target equipments A1 and A2 are target generators or target storage batteries. The integrated algorithm is configured in that the types are not distinguished.

FIG. 7 is an explanatory diagram showing an example of a power distribution rule applied to the power calculation unit 41.
As shown in FIG. 7, in the present embodiment, the following three types of rules 1 to 3 are set as the power distribution rules applied to the power calculation unit 41.

Allocation rule 1: When the electric power to be distributed is "chargeable electric power" In this case, the "input electric power" to the electric power calculation unit 41, the "target equipment" and the "priority order" of the electric power distribution are as follows.
Input power: Rechargeable power (negative value)
Target facilities: Target storage batteries that require charging Priority: Order in which the plan deviation rate increases in the negative direction

As described above, when the power to be distributed to the target equipment is “chargeable power”, the “input power” to the power calculation unit 41 is the chargeable power (negative value), and the “target equipment” is charged. It becomes the required target storage battery.
In this case, the power calculation unit 41 sets the priority order of power distribution in the descending order of the plan deviation rate (in the descending order of the shortage of the charge amount). Specifically, the power calculation unit 41 allocates the target equipment having a larger absolute value of the planned deviation rate in the negative direction to the control block B1, and allocates the target equipment having a smaller absolute value to the control block B2.

Allocation rule 2: When the electric power to be distributed is the “power capable of reducing output” In this case, the “input electric power” to the electric power calculation unit 41, the “target equipment” and the “priority order” of the electric power distribution are as follows.
Input power: Rechargeable power (negative value)
Target facilities: Target generators and target storage batteries that do not require charging Priority: Order in which the plan deviation rate is in the negative direction

As described above, when the power to be distributed to the target facility is the “power that can be reduced in output”, the “input power” to the power calculation unit 41 is the chargeable power (negative value), and the “target facility” is the target. It becomes a target storage battery that does not require a generator and charging.
In this case, the power calculation unit 41 sets the priority order of power distribution in the descending order of the planned deviation rate (in the descending order of the power generation amount or the discharge amount). Specifically, the target equipment having a larger absolute value of the plan deviation rate in the negative direction is assigned to the control block B1, and the target equipment having a smaller absolute value is assigned to the control block B2.

Allocation rule 3: When the power to be distributed is the “output increased power” In this case, the “input power” to the power calculation unit 41, the “target equipment” and the “priority” of the power distribution are as follows.
Input power: Output power increase (positive value)
Target equipment: All target generators and target storage batteries Priority: The order in which the planned deviation rate increases in the positive direction.

As described above, when the power to be distributed to the plurality of target facilities is the “output increased power”, the “input power” to the power calculation unit 41 is the output increased power (positive value), and the “target facility” is All target generators and target storage batteries.
In this case, the power calculation unit 41 sets the priority order of power distribution in the order in which the plan deviation rate is positive in the positive direction (the order in which the amount of power generation or the amount of discharge is insufficient). Specifically, the target equipment having the larger absolute value of the plan deviation in the positive direction is assigned to the control block B1, and the target equipment having the smaller absolute value is assigned to the control block B2.

[Calculation of output command value for target equipment]
FIG. 8 is a flowchart showing an example of an output command value calculation process executed by the dynamic redistribution control unit 40. In the following example, it is assumed that the control purpose is to reduce the received power to the target power or less.
As shown in FIG. 11, the dynamic redistribution control unit 40 first determines whether or not the inequality of “target power>received power” is satisfied in the current power state (step S20).

If the determination result of step S20 is affirmative, it means that the received power is less than the contracted power (≧target power), so that the received power purchased from the commercial power supply 14 has a margin.
Therefore, in this case, the dynamic redistribution control unit 40 substitutes the "power receiving capacity" into the "chargeable power" (step S36). This process means that the received power currently being purchased is applied to the rechargeable power.

After that, the dynamic redistribution control unit 40 distributes the rechargeable power (=remaining power reception) to the target storage battery that needs to be charged (step S38).
Specifically, the dynamic redistribution control unit 40 executes the power distribution in step S38 according to the distribution rule 1 (see FIG. 7) described above. According to the distribution rule 1, the rechargeable power (=remaining power reception capacity) is distributed to the target storage batteries in the descending order of the planned deviation in the negative direction (that is, in the descending order of the shortage of the charge amount with respect to the planned value).

Next, the dynamic redistribution control unit 40 determines whether or not the chargeable power after distribution is a negative value (=in a chargeable state) (step S40).
When the determination result of step S40 is affirmative, it means that the received power still has a margin even after the chargeable power (=remaining power reception) is distributed to the target storage battery.
Therefore, in this case, the dynamic redistribution control unit 40 substitutes "remainder of chargeable power" into "output reduction possible power" (step S42). This process means that the surplus of the chargeable power after the allocation is further applied to the output reduceable power.

Then, the dynamic redistribution control unit 40 distributes the output-reducible power to the target generator and the target storage battery (step S44).
Specifically, the dynamic redistribution control unit 40 executes the power distribution in step S44 according to the distribution rule 2 (see FIG. 10) described above. In the distribution rule 2, the power that can be reduced in output is distributed to the target generator or the target storage battery in the order in which the planned deviation rate is large in the negative direction (that is, in the order in which the excess degree of the output power is large with respect to the planned value).

After executing the process of step S44, the dynamic redistribution control unit 40 shifts the process to before step S24.
When the determination result of step S40 is negative, it means that there is no margin in the received power after the rechargeable power (=remaining power reception) is distributed to the target storage battery.
Therefore, in this case, the dynamic redistribution control unit 40 shifts the processing to before Step S24 without performing the processing of Step S42 and Step S44 (allocation of the power that can reduce the output).

If the determination result in step S20 is negative, it means that the received power is equal to or close to the contract power (≧target power), and therefore the received power purchased from the commercial power supply 14 has no margin. ..
Therefore, in this case, the dynamic redistribution control unit 40 substitutes 0 for "chargeable power" (step S22). This process means that there is no power receiving capacity (=0), and zero power value is applied to the chargeable power.

After that, the dynamic redistribution control unit 40 determines whether or not the inequality of "target power+output surplus of target generator>received power" is satisfied in the current power state (step S24).
If the determination result of step 24 is affirmative, it means that there is still a margin in the generated power of the target generator included in the power facility 1.

Therefore, the dynamic redistribution control unit 40 adds the "output capacity of equipment" to the "chargeable power" (step S26). This process means that if there is room to increase the output power of at least one of the target generator and the target storage battery, the output power is increased and used for charging.
However, when the target storage battery is included as a target for calculation of this “output surplus of facility”, when the power facility 1 includes a plurality of target storage batteries, the discharge power of one target storage battery is the charging power of the other target special electricity site. Therefore, useless power transfer with power loss occurs.

Therefore, it is preferable to employ only the target generators excluding the target storage battery as the target of calculation of the "equipment output capacity" in step S26.
In this way, if the target of calculation of the "output capacity of equipment" in step S26 is limited to only the target generator and the target storage battery is excluded from the calculation target, the discharge power of one target storage battery is It is possible to prevent wasteful power transfer which is allocated to charging power. However, in the case where the plan schedules the power transfer as described above, the target storage battery may be included in the calculation target.

In addition, when the target storage battery is included as the calculation target of the “output capacity of equipment” in step S26, it is conditional that the command by the plan is discharging and the previous output (discharge amount) is less than or equal to the planned value. It is preferable. Then, with respect to the target storage battery, the output capacity may be calculated with the planned value as the upper limit.
With this configuration, it is possible to prevent the one target storage battery from being charged with the charging power of the other target storage battery until the target storage battery performs the discharge exceeding the planned value. However, this does not apply if it is required to operate the remaining charge of the storage battery as planned.

After that, the dynamic redistribution control unit 40 allocates the rechargeable power (=the output capacity of the equipment) to the target storage battery (step S28), and substitutes the “distributed rechargeable power” into the “output increase power” ( (Step S30), the process proceeds to step S34.

If the result of the determination in step S24 is negative, the received power exceeds the target power (No in step S20), but the generated power of the target generator included in the power facility 1 has no margin. Means
Therefore, in this case, the dynamic redistribution control unit 40 substitutes (received power-target power) for the output increased power (step S32). This process means that the target generator or the target storage battery is caused to output the power that is insufficient with the received power.

Then, the dynamic redistribution control unit 40 distributes the output increased power to the target generator and the target storage battery (step S34).
Specifically, the dynamic redistribution control unit 40 executes the power distribution in step S34 according to the distribution rule 3 (see FIG. 7) described above. According to the distribution rule 3, the output increase power is distributed to the target generator and the target storage battery in the order in which the planned deviation rate is large in the positive direction (that is, in the descending order of the output power shortage with respect to the planned value).
After executing step S34, the dynamic redistribution control unit 40 ends the process.

[Effect of EMS]
According to the EMS 2 of the present embodiment, when the dynamic redistribution control unit 40 calculates the output command value of the target equipment for the purpose of maintaining the power supply and demand balance, the degree of deviation of the current output power from the planned value ( Specifically, according to the priority order dynamically determined according to the “plan deviation rate”), an algorithm for allocating the power to be reduced or increased with respect to the current power supply and demand state to a plurality of target facilities, respectively. Adopted (see FIGS. 6 and 7).
Therefore, it is possible to execute control that is as compatible as possible with a long-term operation plan by using the priority order that is dynamically determined according to the degree of deviation from the planned value.

According to the EMS 2 of the present embodiment, the process of calculating the output command value of the target equipment is executed by using the integrated algorithm (specifically, the power calculation unit 41 of FIG. 6) that does not distinguish the type of the target equipment. The deviation from the operation plan can be appropriately adjusted regardless of the type of target equipment.
Therefore, even if the type of the target equipment used for the power equipment 1 is changed, the same integrated algorithm can be continuously used. Therefore, unlike the conventional control technique, it is not necessary to reset the control parameter and the algorithm, and it is possible to easily and flexibly deal with the change of the type of the target equipment.

According to the EMS 2 of the present embodiment, when the received power from the electric power company is less than the target power, the dynamic redistribution control unit 40 sequentially sets the target power to the target power in descending order of the charge amount with respect to the planned value. The power receiving surplus less than or equal to the subtracted value of the received power is distributed to the charging of the target storage battery (see distribution rule 1 in FIG. 7 and step S38 in FIG. 8).
Therefore, the period during which the charge amount of the target storage battery returns to the planned value can be shortened as much as possible, and the energy management based on the operation plan can be recovered early.

According to the EMS 2 of the present embodiment, when the surplus power remains after the distribution of the power reception surplus, the dynamic redistribution control unit 40 sequentially starts from the target generator or the target storage battery having a large excess degree of the output power with respect to the planned value. The surplus power is distributed to the decrease in the power generation amount of the target generator or the discharge amount of the target storage battery (see distribution rule 2 in FIG. 10 and step S44 in FIG. 11).
Therefore, it is possible to shorten the period in which the power generation amount of the target generator or the discharge amount of the target storage battery returns to the planned value as short as possible, and it is possible to recover the energy management based on the operation plan at an early stage.

According to the EMS 2 of the present embodiment, when the received power from the power company is equal to or higher than the target power, the dynamic redistribution control unit 40 has the target generator or the target storage battery having a large degree of insufficient output power with respect to the planned value. In this order, the power to be increased in the power equipment is distributed to the increase in the power generation amount of the target generator or the increase in the discharge amount of the target storage battery (see distribution rule 3 in FIG. 7 and step S34 in FIG. 8).

Therefore, the supply and demand balance including the received power can be maintained in a desired state based on the target power.
Further, in this case, the period for returning from the state in which the power generation amount of the target generator or the discharge amount of the target storage battery is insufficient to the planned value can be shortened as much as possible, and the energy management based on the operation plan can be quickly recovered. ..

[Simulation result of dynamic redistribution control]
9 and 10 are graphs showing simulation results of the dynamic redistribution control of this embodiment. 12 shows the simulation result of the first half part, and FIG. 13 shows the simulation result of the second half part.

This simulation result is a graph when simulating the dynamic redistribution control of the present embodiment with respect to the virtual electric power facility 1 including two generators A and B and two electric storage devices A and B, respectively. The enumeration is as follows.

Simulation period: 4500s
Control cycle of dynamic redistribution control: 10 s
Target power: 4500kW
Receivable electric energy is reset at 1800 s (30 minutes) Demand power fluctuation: 5000 kW + square wave is assumed However, square wave period is 1000 s, amplitude is 1100 kW between peak-peak

Characteristics of generator A Output range: 300-700kW
Response speed: +1.2 kW/s, -2.5 kW/s
Plan value: 0-1200s=500kW, 1201-4500s=350kW

Characteristics output of generator B: 300-700kW
Response speed: +1.2 kW/s, -2.5 kW/s
Plan value: 0-2000s=350kW, 2001-4500s=600kW

Characteristics of storage battery A Output range: -500 to 500 kW (- means charging)
Response speed: +1000 kW/s, -1000 kW/s
Plan value: 0-1500s=-200kW, 1501-4500s=300kW
Charge/discharge efficiency: 80%

Characteristics of storage battery B Output range: -250 to 250 kW (-means charging)
Response speed: +500kW/s, -500kW/s
Plan value: 0-2500s=200kW, 2501-4500s=-100kW
Charge/discharge efficiency: 80%

In FIG. 12 and FIG. 13, in the first graph from the top, “demand power” is shown by a chain line, “received power” is shown by a thin solid line, and “target power” is shown by a broken line.
In the second graph from the top, the “receivable power amount” is indicated by a thick solid line. The “receivable power amount” is an average value of the cumulative value of the received power, and a negative value means that the power can be received, and a positive value means that the power facility needs to generate electricity. Since the contract power is counted in units of 30 minutes, the contract power is protected if the receivable power amount at the time of resetting in 30 minutes is a negative value.

The graph from the third row from the top is a graph of the facility output (if negative, charging) of the target facility.
In this graph, the facility output of "generator A" is shown by a dashed-dotted line, the facility output of "generator B" is shown by a thin solid line, the facility output of "storage battery A" is shown by a thick solid line, and "storage battery" The equipment output of "B" is shown with a broken line.

The fourth graph from the top is a graph of the operation plan of the target facility (charging if negative).
In this graph, the operation plan of "generator A" is shown by a chain line, the operation plan of "generator B" is shown by a thin solid line, the operation plan of "storage battery A" is shown by a thick solid line, and "storage battery" The operation plan of "B" is shown by a broken line.

The fifth graph from the top is a graph of the required charging amount of the target equipment.
In this graph, the required charging amount of "generator A" is shown by a chain line, the required charging amount of "generator B" is shown by a thin solid line, and the required charging amount of "storage battery A" is shown by a thick solid line. , The required charging amount of “storage battery B” is indicated by a broken line.

The sixth graph from the top is a graph of the planned deviation rate of the target facility.
In this graph, the planned deviation rate of "generator A" is shown by a dashed line, the planned deviation rate of "generator B" is shown by a thin solid line, and the planned deviation rate of "storage battery A" is shown by a thick solid line. , The planned deviation rate of “storage battery B” is indicated by a broken line.

As shown in the first graph, in this simulation, it was decided that the demand power drastically changes with a rectangular wave having a period of 1000 s and an amplitude of 1100 kW.
Therefore, as shown in the graph in the second stage, the receivable power amount temporarily decreases at the time when the demand power sharply decreases (T=500s, 1500s, etc.). Moreover, at the time when the demand power increases rapidly (T=1000s, 2000s, etc.), the receivable power amount temporarily increases.

However, in the present embodiment, since the facility output is adjusted by the dynamic redistribution control so as to protect the contracted power, even if the amount of power that can be received changes due to a sudden change in demand power, it immediately returns to around 0, and The amount of available power does not become positive at the time of reset.
For example, as shown in the third graph, the storage batteries A and B have a very high response speed as compared with the generators A and B, and therefore, at the time of a change in the demand power, the equipment output rapidly changes according to the change. Fluctuations, which contributes to stabilizing the amount of power that can be received.

Further, although the generators A and B have a slower response speed than the storage batteries A and B, at the time of the change in the demand power, the facility output gently changes according to the change to stabilize the receivable power amount. Have contributed.

As shown in the fourth graph, the operation plan of the storage battery A is -200 kW in the time zone of 0 to 1500 s. Therefore, when only the operation plan is followed, the storage battery A is basically controlled so that the facility output has a negative value (charge).
However, at the time of T=1000 s, in response to the sudden increase in the demand power, the storage battery A increases the facility output so as to once change to discharge, and then decreases the facility output so as to change to charge.

[Other modifications]
The embodiments disclosed this time are to be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the claims, and is intended to include meanings equivalent to the claims and all modifications within the scope.
For example, in the above-described embodiment, the case where the power facility 1 that is the management target of the EMS 2 includes the power generation device 8 and the power storage device 6 capable of adjusting the power is illustrated, but either the power generation device 8 or the power storage device 6 is illustrated. The power facility 1 may include one or more power facilities of one type.

Specifically, the power facility 1 to be managed by the EMS 2 of the present embodiment does not include the power storage device 6, but includes a plurality of types of power generation devices 8 such as a gas power generator and other types of power generators 8. It may be equipment.
On the contrary, the power equipment 1 may be a power equipment that does not include the power generation device 8 but includes a plurality of types of power storage devices 6 such as a chemical battery and another type of storage battery.

One of the features of the EMS 2 according to the above-described embodiment is that the operation plan and the control are integrated. However, even if the operation plan is not actually calculated, the planned value is assumed to allow the dynamic distribution control unit 40 to operate. It can also be operated independently.
Since the EMS 2 according to the above-described embodiment realizes the supply and demand balance of the power facility 1, the power system 1 does not necessarily have to be connected to the power system 14.

In the above-described embodiment, the case where the management target of the EMS 2 is the power facility 1 is illustrated. However, if the EMS 2 controls “heat amount” instead of “electric power”, the EMS 2 of the above-described embodiment is It can also be applied to the energy management system of utilization equipment.
Since both the electric power and the heat quantity are “energy”, the EMS 2 of the present embodiment capable of managing the supply and demand of the heat quantity includes the invention in which “electric power” in the claims is replaced with “energy”. ..

That is, the EMS 2 of this embodiment may be, for example, the following EMS.
"An EMS that manages energy supply and demand based on operation plans,
An acquisition unit that acquires the current energy supply and demand state and the output energy of the energy facility including the target facility that is at least one type of one or more of the energy generation device and the energy storage device, and the acquired current state Based on the energy supply and demand state and the output energy, the process of calculating the output command value of the target equipment that conforms to the planned value of the operation plan as much as possible, using an integrated algorithm that does not distinguish the type of the target equipment. And a control unit that executes the EMS. "

1 Electric power equipment 2 Energy management system (EMS)
3 distribution line 4 load device 5 load device 6 power storage device 7 power generation device 8 power generation device 11 DC/AC converter 14 commercial power supply 15 smart meter (watt hour meter)
16 communication line 21 control device 22 storage device 23 communication device (acquisition unit)
24 input device 25 display device 30 planning unit 40 dynamic redistribution control unit (control unit)
41 Power calculator (integrated algorithm)

Claims (9)

An energy management system for managing power supply and demand based on an operation plan,
An acquisition unit that acquires the current power supply and demand state and the output power of the power facility including the target facility that is a plurality of devices including both the power generation device and the power storage device,
Based on the acquired current power supply and demand state and the output power, the process of calculating the output command value of the target equipment according to the deviation from the planned value of the operation plan is set according to the number of the target equipment. An energy management system comprising: a control unit that executes using an integrated algorithm including control blocks of possible priorities . The integration algorithm is
By allocating the target equipment to the control block having a priority order dynamically determined according to the degree of deviation of the current output power from the planned value, the current power supply/demand state is decreased or increased. The energy management system according to claim 1, wherein the energy management system is an algorithm for allocating a power amount to each of the target facilities. The control unit, when the received power from the power company is less than the target power,
The energy management system according to claim 2, wherein a power receiving margin equal to or less than a subtraction value of the received power from the target power is distributed to charging of the power storage device in order from the power storage device having a large degree of insufficient charge amount with respect to the planned value. .. If the surplus power remains after the distribution of the power receiving surplus,
4. The surplus power is distributed to a decrease in the power generation amount of the power generation device or a decrease in the discharge amount of the power storage device in order from the power generation device or the power storage device having a larger excess degree of the output power with respect to the planned value. Energy management system described in. The control unit, when the received power from the power company is equal to or higher than the target power,
In order from the power generation device or the power storage device in which the degree of lack of the output power with respect to the planned value is large, the power to be increased in the power equipment is increased in the power generation amount of the power generation device or the discharge amount of the power storage device. The energy management system according to any one of claims 2 to 4, wherein the energy management system is distributed. The control unit, when the output surplus of the target equipment having a margin to further increase the current output power is used for charging,
The energy management system according to claim 5, wherein the power generation device is included in the calculation target of the output surplus, and the power storage device is excluded from the calculation target of the output surplus. The control unit, when the output surplus of the target equipment having a margin to further increase the current output power is used for charging,
The output power of the power storage device, including the power generation device and the power storage device in which the operation plan command is discharge, is included in the calculation target of the output power reserve, and the discharge amount specified by the plan value is set as an upper limit. The energy management system according to Item 5. A computer program for causing a computer to function as an energy management system for managing power supply and demand based on an operation plan, the computer including:
An acquisition unit that acquires the current power supply and demand state and the output power of the power facility including the target facility that is a plurality of devices including both the power generation device and the power storage device,
Based on the acquired current power supply and demand state and the output power, the process of calculating the output command value of the target equipment according to the deviation from the planned value of the operation plan is set according to the number of the target equipment. A computer program that functions as a control unit that executes using an integrated algorithm that includes control blocks of possible priorities . An energy management method for managing power supply and demand based on an operation plan,
A step of acquiring the current power supply and demand state and the output power of the power facility including the target facility that is a plurality of devices including both the power generation device and the power storage device;
Based on the acquired current power supply and demand state and the output power, the process of calculating the output command value of the target equipment according to the deviation from the planned value of the operation plan is set according to the number of the target equipment. Performing with an integrated algorithm that includes control blocks of possible priorities .

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