Power control system, power control method, and program

Abstract

To provide a power control system, a power control method, and a program capable of achieving high response performance and low operating costs.SOLUTION: A power control system 1 includes: an acquiring unit 251 that acquires, from an external device, a response command including a response command value whose power output changes in a step-like manner; a transient control unit 252 that controls a plurality of resources in a transient control mode by determining output allocation for each of resources A to D so that the responsive output reaches the responsive command value in a predetermined responsive time from the time of a change in the responsive command value; a stationary control unit 253 that controls the plurality of resources in the stationary control mode by determining output allocation for each of the resources so that the responsive output matches the responsive command value; and a switching control unit 254 that controls the plurality of resources in a switching control mode by determining output allocation so that the switching of power output is carried out while maintaining the responsive output.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] An embodiment of the present invention relates to a power control system, a power control method, and a program. [Background technology]

[0002] In recent years, the introduction of power supply facilities that use renewable energy such as solar and wind power has been expanding. Since power supply facilities that use renewable energy are subject to output fluctuations, the importance of adjustment capabilities to adjust the supply and demand balance of the power grid is increasing.

[0003] It is also necessary to create adjustment power by operating a Virtual Power Plant (VPP) that uses distributed resources such as distributed power sources and distributed storage batteries. In such cases, power control is required that adjusts the output of multiple distributed resources with different response characteristics with high precision. For example, there is a conventional technique that uses multiple distributed resources to enable responsive output in response to power adjustment commands. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-83290 Summary of the Invention [Problem to be solved by the invention]

[0005] In addition, in order to stably and efficiently secure the adjustment power for a stable power supply, an electricity supply and demand adjustment market has been established in which adjustment power can be traded. In accordance with the requirements of the electricity products in the electricity supply and demand adjustment market, it is necessary to respond to a step-like (step-like) response command within a specified response time and to provide a continuous response output for a specified duration.

[0006] On the other hand, distributed resources with excellent response characteristics and controllability generally have high operating costs, so there is a need to operate distributed resources based on a resource operation priority (resource operation priority) that includes resources with low operating costs. In other words, it is necessary to realize highly reliable adjustment capabilities while also achieving economically efficient operation.

[0007] Furthermore, when output is switched between distributed resources (hereinafter simply referred to as "resources"), a transient fluctuation in responsive output generally occurs because the output change speed differs for each resource.

[0008] Therefore, an object of the embodiments of the present invention is to provide a power control system, a power control method, and a program that can achieve high responsiveness and low operating costs. [Means for solving the problem]

[0009] The power control device of the embodiment includes an acquisition unit that acquires a response command including a response command value that changes stepwise with respect to power output from an external device; a transient control unit that, in a transient control mode from a time point at which the response command value changes until a response output by a plurality of resources that output power reaches the response command value, determines an output allocation of each of the resources based on an output change rate of each of the resources and controls the plurality of resources so that the response output reaches the response command value within a predetermined response time from the time point at which the response command value changes; a steady control unit that, in a steady control mode during which the response output is in a steady state, determines an output allocation of each of the resources based on an operation rank and an output change range of each of the resources and controls the plurality of resources so that the response output matches the response command value; and a switching control unit that, in a switching control mode through which a transition is made from the transient control mode to the steady control mode and from the steady control mode to another steady control mode, determines an output allocation of each of the resources and controls the plurality of resources so that power output is switched while maintaining the responsive output. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing an overall configuration including a power control system according to a first embodiment. [Diagram 2] FIG. 2 is a diagram showing information related to resources in the first embodiment. [Diagram 3] FIG. 3 is a diagram showing transition of the control mode in the power control system of the first embodiment. [Figure 4] FIG. 4 is a graph showing the operation cost and output amount of each resource in the first embodiment. [Diagram 5] FIG. 5 is a graph showing a simulation result of the resource output of the first embodiment. [Figure 6] FIG. 6 is a flowchart showing the processing performed by the power control system of the first embodiment. [Figure 7] FIG. 7 is a diagram showing the overall configuration including the generator of the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, embodiments (first and second embodiments) of a power control system, a power control method, and a program of the present invention will be described with reference to the drawings.

[0012] (First embodiment) First, a first embodiment will be described. Fig. 1 is an overall configuration diagram including a power control system 1 of the first embodiment. The power control system 1 is connected to a plurality of resources 4 (hereinafter also referred to as "resource A") that output power, and includes a distribution arithmetic device 2 and a control arithmetic device 3.

[0013] The control arithmetic device 3 includes a plurality of controllers 31 (controllers A to E). The controllers 31 may be realized by software, or may be realized by hardware such as a control circuit. The controllers 31 transmit resource control commands ui to the connected resources 4 to control them, and also receive information on output from the resources 4. The amount of response (response output) is determined by the outputs from all the resources 4.

[0014] The allocation calculation device 2 is, for example, a computer device, and includes a storage unit 21, an input unit 22, a display unit 23, a communication unit 24, and a processing unit 25.

[0015] The storage unit 21 is a means for storing various types of information, and is realized by, for example, a random access memory (RAM), a read only memory (ROM), a hard disk drive (HDD), a solid state drive (SSD), etc. The storage unit 21 stores various types of information related to power control.

[0016] The input unit 22 is an information input means by the user, and is realized by, for example, a mouse, a keyboard, a touch panel, or the like.

[0017] The display unit 23 is an information display means, and is realized by, for example, an LCD (Liquid Crystal Display) or the like.

[0018] The communication unit 24 is a communication interface for communicating with an external device.

[0019] 2 is a diagram showing information related to the resource 4 in the first embodiment. As shown in Fig. 2, the information related to the resource 4 includes items such as resource name, upper limit kW, lower limit kW, increase kW / s, decrease kW / s, initial resource operation priority, and resource usage plan.

[0020] The upper limit kW and lower limit kW are the upper and lower limits of the output change range. The increase in kW / s is the maximum rate of change of power when increasing power. Down kW / s is the maximum rate of change of power when decreasing power.

[0021] The initial resource operation order is the initial operation priority of resource 4. The resource operation order, including the initial resource operation order, can be set in ascending order of the cost of operating resource 4, or in ascending order of the environmental impact. Here, the order from highest operation priority is resource A, resource B, resource C, and resource D. The resource operation order is changed in conjunction with the resource usage plan.

[0022] The resource usage plan is a scheduled usage time period for resource 4, which has restrictions on the usage time period. For example, the scheduled usage time period for resource B is 0 to 50 minutes. Furthermore, the scheduled usage time period for resource E is from 50 minutes onwards.

[0023] Returning to Fig. 1, the processing unit 25 is a means for performing various calculation processes, and is realized by, for example, a CPU (Central Processing Unit). The processing unit 25 includes an acquisition unit 251, a transient control unit 252, a steady-state control unit 253, a replacement control unit 254, and an estimation unit 255. In the following, the processing other than that of each unit 251 to 255 in the processing unit 25 will be described as being performed by the processing unit 25.

[0024] The acquisition unit 251 acquires various information from inside and outside the power control system 1. For example, the acquisition unit 251 acquires a response command including a response command value that changes stepwise with respect to the power output from an external device (not shown). The acquisition unit 251 also acquires the upper limit kW of the output of the resource 4 and the measured values ​​of state quantities related to the operation duration for feedback control of the resource 4. For example, if the resource 4 is a storage battery, when the SOC (State of Charge) reaches its lower limit, discharging cannot be continued, so the acquisition unit 251 acquires the measured value and estimated information of the SOC for feedback control.

[0025] Below, reference will also be made to Fig. 3. Fig. 3 is a control mode transition diagram in the power control system 1 of the first embodiment.

[0026] In a transient control mode M1 (FIG. 3) from the time when the response command Rs (response command value) changes until the response outputs of the multiple resources 4 reach the response command value, the transient control unit 252 determines the output allocation (resource allocation command ri) ​​of each resource 4 based on the output change speed of each resource 4 so that the response output reaches the response command value within a predetermined response time from the time when the response command Rs changes, and controls the multiple resources 4 (outputs resource allocation command ri).

[0027] In the steady control mode M0 (FIG. 3) during which the responsive output is in a steady state, the steady-state control unit 253 determines the output allocation (resource allocation command ri) ​​of each resource 4 based on the operation rank and output change range of each resource 4 so that the responsive output matches the responsive command value, and controls the multiple resources 4 (outputs resource allocation command ri).

[0028] Furthermore, in the steady control mode M0, the steady control unit 253 determines the output allocation of each resource 4 based on the measurement information of the SOC of the storage battery among the resources 4 so as to enable output from the storage battery for a predetermined period of time.

[0029] The switching control unit 254 determines the output allocation (resource allocation command ri) ​​of each resource 4 and controls the multiple resources 4 (outputs resource allocation command ri) ​​so as to switch the power output while maintaining the responsive output in a switching control mode M2 ​​(FIG. 3) through which the transition from the transient control mode M1 to the steady control mode M0 and the transition from the steady control mode M0 to another steady control mode M0 is made when the switching control mode M2 ​​is switched from the steady control mode M0 to another steady control mode M0.

[0030] Furthermore, in the transfer control mode M2, the transfer control unit 254 determines the transfer time as the longest time among the times required for each resource 4 that changes its output to change its output based on the maximum output change speed of each resource 4, and determines the output distribution of the resource 4 so that all resources 4 that change their output change their output exactly at that transfer time.

[0031] In addition, in the replacement control mode M2, the replacement control unit 254 determines the output allocation of each resource 4 based on a resource usage plan including the usage time period of each resource 4 so as to switch between the resource 4 that will stop output and the resource that will start output while maintaining the responsive output.

[0032] The estimation unit 255 estimates the actual output change speed of each resource 4 by measuring the tracking result of the output with respect to the control command for each resource 4.

[0033] In addition, the estimation unit 255 estimates the smaller of the possible responsive output amount in the transient control mode (R1 in FIG. 4(b)) and the possible responsive output amount in the steady control mode (R2 in FIG. 4(c)) as the actual possible responsive output amount by the multiple resources 4.

[0034] The control arithmetic device 3 feedback-controls the output of each resource 4 in accordance with the resource allocation command ri received from the allocation arithmetic device 2. That is, the control arithmetic device 3 feedback-controls the output of the resource 4 based on the resource allocation command ri and measurement information of the resource output yi output by the resource 4. The control arithmetic device 3 outputs a resource control command ui to the resource 4. The controller 31 in the control arithmetic device 3 uses a feedback control system configured so that the resource output yi follows the resource allocation command ri, and includes, for example, an integral operation capable of compensating for a steady-state deviation. For example, PID (Proportional-Integral-Differential) control can be used. Also, feedforward control may be used in combination to improve tracking ability.

[0035] Next, the details of the transition of the control mode in the allocation calculation device 2 will be described with reference to Fig. 3. In the steady control mode M0, when the response command Rs of the adjustment force changes stepwise, the mode transitions to the transient control mode M1, and after a predetermined response time TR has elapsed, the mode transitions to the switching control mode M2. In the switching control mode M2, the mode transitions to the steady control mode M0 after the switching time T2 has elapsed.

[0036] In addition, in the steady-state control mode M0, when a change in the output range of resource 4 is detected, or at the timing of replacing resource 4 specified in the resource usage plan, the control mode transitions to the switching control mode M2, and after the switching time T2 has elapsed, the control mode transitions to the steady-state control mode M0.

[0037] Next, the operation cost and output amount of each resource 4 will be described with reference to Fig. 4. Fig. 4 is a graph showing the operation cost and output amount of each resource in the first embodiment. Note that resource E is not used at the beginning in the simulation of Fig. 5, so resource E is excluded in Fig. 4.

[0038] FIG. 4(a) shows the output amounts and operation costs of resources A to D when there are no constraints on response speed, output duration, and the like.

[0039] Fig. 4(b) shows the output amounts and operation costs of resources A to D available in transient control mode M1. Specifically, it is as follows. In transient control mode M1, based on the step change width (the magnitude of change during a step change) of the response command Rs and the output change speed of each resource 4, the output distribution of each resource is calculated using a merit order method reflecting the resource operation ranking as shown in Fig. 4(b) according to the resource output change amount that can be responded to within the specified response time TR in which the adjustment power response is required. In other words, resource A has a low operation cost but also a low response performance, so the output amount that can be used within the limited specified response time TR is smaller than the output amount when there is no time constraint (see Fig. 4(a)).

[0040] For example, the resource output allocation may be calculated to allow a certain amount of time to respond within a shorter time than the predetermined response time TR in accordance with the accuracy of the output change rate information of each resource 4.

[0041] FIG. 4(c) shows the output amounts and operation costs of resources A to D available in the steady-state control mode M0. Specifically, it is as follows. In the steady-state control mode M0, the resource output allocation is calculated using the merit order method as shown in FIG. 4(c) according to the output change range of each resource 4 (without considering the output change speed of each resource 4). Here, for resource B, which is a storage battery, the resource output allocation is replaced based on the measurement information of the remaining SOC so that the resource output is kept at a level that does not cause the SOC to fall below the lower limit during the specified time when the output should be made. In other words, the output amount of resource B is smaller than in the cases of FIGS. 4(a) and (b).

[0042] The distribution calculation device 2 may adjust the output amount of the storage battery in consideration of the discharge efficiency of the storage battery based on data measured by the thermometer section of the storage battery or the battery deterioration measurement section.

[0043] Also, in order to secure a margin for increasing each resource control command ui, the resource output allocation may be calculated to be a value approximately 5% to 10% smaller than the upper limit kW of the resource output.

[0044] In the switching control mode M2, the switching time T2 is set as the longest time among the times required for each resource 4 that changes its output to change its output based on the resource output allocation ri at the end of the transient control mode M1 (start of the switching control mode M2) and the resource output allocation ri of the stationary control mode M0 to which the mode is switched, and based on the maximum output change speed of each resource 4. In other words, the switching time T2 may be different each time depending on the resource output allocation status at the start and end of the switching. Then, the resource output allocation ri of the resource 4 is determined and output so that all resources 4 that change their output change their output exactly at the switching time T2.

[0045] Next, the simulation result of the resource output will be described with reference to Fig. 5. Fig. 5 is a graph showing the simulation result of the resource output of the first embodiment. The upper part of Fig. 5 shows the response amount, and the lower part of Fig. 5 shows the output of each resource 4 (resource output).

[0046] First, at 10 minutes, the response command changes in a stepwise manner from 0kW to 5000kW. Then, in (a) transient control mode M1 (transient response) from 10 to 15 minutes, the outputs of resources A to D are controlled so that the response output becomes 5000kW in 5 minutes (predetermined response time TR). In other words, while the output of resource A, which cannot change to the response command within the predetermined response time TR but has the highest resource operation priority, is changed to the maximum, the other resources B, C, and D are made to follow the response command within the predetermined response time TR. Resource B starts output at 14 minutes.

[0047] Next, in (b) switch control mode M2 ​​(switch response) from time 15 to 24 minutes, resource A is at maximum output while maintaining the response amount, and the outputs of resources B, C, and D are controlled to be reduced according to the resource operation priority. Resource D has no output. Note that, although resource A reaches maximum output at 23.333... minutes when the output is changed to the maximum, for the sake of simplicity, this embodiment will be described as reaching maximum output at 24 minutes.

[0048] From 24 to 30 minutes, (c) steady-state control mode M0 (steady-state response) is selected, and resources A, B, and C maintain constant output.

[0049] In addition, resource B is a storage battery, and a decrease in SOC is measured at 30 minutes, and from 30 minutes to 32 minutes (d) transfer control mode M2 ​​(transfer response) is entered, and while maintaining the response amount, the output of resource B is reduced and the output of resource C is increased by that amount, thereby transferring the output.

[0050] From 32 to 50 minutes, (e) steady-state control mode M0 (steady-state response) is selected, and resources A, B, and C maintain constant output.

[0051] In addition, in the resource usage plan (Figure 2), the end of use of resource B and the start of use of resource E are both at 50 minutes. Taking into account the output change range of resource E, in (f) switchover control mode M2 ​​(switchover response) from 50 to 52 minutes, the output of resources B and C is reduced while maintaining the response amount, and the equivalent output is switched to resource E.

[0052] From time 52 to 60 minutes, (g) steady-state control mode M0 (steady-state response) is selected, and resources A and E maintain constant output.

[0053] Next, at time 60 minutes, the response command changes in a stepwise manner from 5000kW to 7500kW. Then, in (h) transient control mode M1 (transient response) from time 60 to 65 minutes, the output of resources C, D, and E is increased so that the response output becomes 7500kW in 5 minutes (predetermined response time TR).

[0054] Next, in (i) switchover control mode M2 ​​(switchover response) from time 65 to 67 minutes, while maintaining the response amount, the output of resource C is increased and the output of resource D is decreased according to the resource operation priority. Resource D has no output.

[0055] From 67 minutes onwards, (j) steady-state control mode M0 (steady-state response) is entered, and resources A, C, and E maintain constant output.

[0056] Next, the processing by the power control system 1 of the first embodiment will be described with reference to Fig. 6. Fig. 6 is a flowchart showing the processing by the power control system 1 of the first embodiment. This series of processing is started, for example, by being triggered by the acquisition of the response command Rs.

[0057] First, in step S1, the processing unit 25 acquires and sets various data. Specifically, the acquisition unit 251 acquires the following data: -Predetermined response time TR -Predetermined duration TC Resource upper and lower limits (kW) Resource output change rate

[0058] Moreover, the processing unit 25 sets the elapsed time T to an initial value of 0. Moreover, the acquisition unit 251 acquires the initial value of 0 for the response command (command value) Rs of the power adjustment capability.

[0059] Next, in step S2, the acquisition unit 251 acquires the following data: Elapsed time T ·Response command Rs Resources used Resource output change range Resource operation ranking

[0060] Next, in step S3, the processing unit 25 determines whether or not the elapsed time T exceeds a predetermined elapsed time TC, and if Yes, the process proceeds to step S7, and if No, the process proceeds to step S4.

[0061] In step S7, the acquisition unit 251 acquires the terminal value 0 of the response command Rs.

[0062] Next, in step S8, the transient control unit 252 calculates a resource output allocation for transient control, and outputs a resource allocation command ri.

[0063] Next, in step S9, the controller 31 of the control arithmetic device 3 performs transient control by transmitting a resource control command ui corresponding to the resource allocation command ri to the connected resource 4 for a predetermined response time TR.

[0064] In step S4, the processing unit 25 determines whether or not the response command Rs has changed, and if Yes, the process proceeds to step S10, and if No, the process proceeds to step S5.

[0065] Next, in step S10, the transient control unit 252 calculates a resource output allocation for transient control, and outputs a resource allocation command ri (see (h) of FIG. 5).

[0066] Next, in step S11, the controller 31 of the control arithmetic device 3 performs transient control by transmitting a resource control command ui corresponding to the resource allocation command ri to the connected resource 4 for a predetermined response time TR.

[0067] Next, in step S12, the steady-state control unit 253 calculates a resource output allocation and a replacement time T2 for steady-state control, and outputs a resource allocation command ri.

[0068] Next, in step S13, the steady-state control unit 253 determines whether or not the gripping time T2 exceeds 0. If Yes, the process proceeds to step S14, and if No, the process skips step S14 and returns to step S2.

[0069] In step S14, the controller 31 of the control arithmetic device 3 performs switching control by transmitting a resource control command ui corresponding to the resource allocation command ri to the connected resource 4 during the switching time T2.

[0070] In step S5, the processing unit 25 determines whether or not there is a switch in the resources being used. If Yes, the process proceeds to step S12, and if No, the process proceeds to step S6.

[0071] In step S6, the processing unit 25 determines whether or not the output range of the resource 4 changes, and if Yes, the process proceeds to step S12, and if No, the process proceeds to step S2.

[0072] In steps S12 to S14 after steps S5 and S6, similarly to the above, when it is necessary to change the output distribution of resource 4, a switching control is performed.

[0073] In this way, according to the power control system 1 of the first embodiment, by combining the above-mentioned transient control, steady-state control, and transfer control, it is possible to realize high response performance and low operation costs. In other words, even if a resource 4 (resource A) with a slow response based on the predetermined response time in the response command is included, the response output can be made to follow the response command within the predetermined response time. Furthermore, by the transfer control, it is possible to perform power transfer by multiple resources 4 in accordance with the resource operation priority while maintaining the response output.

[0074] In addition, in the transfer control, the longest time among the times required for each resource 4 to change its output is set as the transfer time based on the maximum output change speed of each resource 4, and the output distribution of the resource 4 is determined so that all resources 4 that change their output change their output at that transfer time. This makes it possible to maintain the responsive output of the control capacity without deviating from the responsive command with simple processing.

[0075] Furthermore, in steady-state control, when resources 4 include storage batteries, the output allocation of each resource 4 is determined based on the measurement information of the SOC of the storage batteries so as to enable output from the storage batteries for a specified period of time. This makes it possible to realize output allocation of resource 4 based on the performance of the storage batteries. In other words, it is possible to realize an operation in which maximum kW response is performed by the storage batteries during transient control, and output allocation is switched to another resource 4 according to the SOC during steady-state control.

[0076] Furthermore, the control arithmetic device 3 may output a resource control command ui to a resource 4 having a relatively small output change rate so that the output change rate is several percent faster than the input information on the resource output change rate. By measuring the resource output's ability to follow the resource control command ui, the actual resource output change rate can be estimated. This makes it possible to improve the control accuracy of the subsequent responsive output.

[0077] In addition, the smaller of the possible responsive output amount in the transient control mode and the possible responsive output amount in the steady control mode is estimated as the actual possible responsive output amount by the multiple resources 4. This allows the estimated value of the possible responsive output amount to be used in bidding in the electricity supply and demand adjustment market. In other words, the possible bid amount can be accurately known before bidding.

[0078] In addition, when switching between resources that can respond quickly within a few seconds, such as storage batteries, a minimum switching time (approximately 30 to 60 seconds) can be set, allowing the transition to be carried out while maintaining a stable responsive output of adjustment power.

[0079] In addition, for consumer resources that provide adjustment power by suppressing the amount of power received, the power receiving pattern that serves as the baseline for the amount of power received can be set to resource output 0, and the suppressed amount of the power received can be set as the resource output, thereby enabling aggregation control including consumer resources to be similarly realized.

[0080] Second embodiment Next, a second embodiment will be described. For matters similar to those in the first embodiment, duplicated explanations will be omitted as appropriate. Fig. 7 is an overall configuration diagram including a generator 54 of the second embodiment. The present invention can be applied to a power plant as shown in Fig. 7.

[0081] The power plant has multiple sets of Francis turbines 53 and generators 54. Water that travels through a water conduit 51 and a penstock 52 enters the Francis turbines 53, and electricity is generated by the generators 54. The water used for power generation flows out into a tailrace 55.

[0082] Then, similarly to the resource output allocation in the first embodiment, the output allocation of the multiple power generators 54 can be made to achieve highly efficient operation.

[0083] In other words, according to the second embodiment, by combining transient control, steady-state control, and switching control as in the first embodiment, it is possible to achieve both transient response within a specified response time and highly efficient output distribution operation.

[0084] The programs executed by the power control system 1 of this embodiment may be provided in an installable or executable format file recorded on a computer-readable recording medium such as a CD-ROM, a flexible disk (FD), a CD-R, or a digital versatile disk (DVD).

[0085] The program may be stored on a computer connected to a network such as the Internet and provided by being downloaded via the network.The program may be provided or distributed via a network such as the Internet.The program may be provided by being pre-installed in a ROM or the like.

[0086] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0087] 1...power control system, 2...distribution calculation device, 3...control calculation device, 4...resource, 21...memory unit, 22...input unit, 23...display unit, 24...communication unit, 25...processing unit, 51...headway, 52...penstock, 53...Francis turbine, 54...generator, 55...spillway, 251...acquisition unit, 252...transient control unit, 253...steady-state control unit, 254...replacement control unit, 255...estimation unit

Claims

1. An acquisition unit that acquires a response command including a response command value that changes stepwise with respect to the power output from an external device; a transient control unit that, when the response command value changes stepwise from a first response command value to a second response command value, determines an output distribution of each of the resources based on an output change speed of each of the resources in a transient control mode from a time point of the change until a response output by a plurality of resources that output electric power reaches the second response command value in a predetermined response time from the time point of the change of the response command value, and controls the plurality of resources; A steady-state control unit controls a plurality of resources by determining output allocation of each of the resources based on an operation rank and an output change range of each of the resources in a steady-state control mode during which the responsive output is in a steady state, so that the responsive output coincides with the responsive command value; a switching control unit that determines an output allocation of each of the resources and controls the plurality of resources so as to switch power outputs while maintaining the responsive output in a switching control mode through which the transient control mode is switched to the steady control mode and the steady control mode is switched to another steady control mode, The change control unit is A power control system in which, in the transfer control mode, the transfer time is determined to be the longest time required for each of the resources that changes its output to change its output based on the maximum output change rate of each of the resources, and the output allocation of the resources is determined so that all of the resources that change their output change their output within the transfer time.

2. An acquisition unit that acquires a response command including a response command value that changes stepwise with respect to the power output from an external device; a transient control unit that, when the response command value changes stepwise from a first response command value to a second response command value, determines an output distribution of each of the resources based on an output change speed of each of the resources in a transient control mode from a time point of the change until a response output by a plurality of resources that output electric power reaches the second response command value in a predetermined response time from the time point of the change of the response command value, and controls the plurality of resources; A steady-state control unit controls a plurality of resources by determining output allocation of each of the resources based on an operation rank and an output change range of each of the resources in a steady-state control mode during which the responsive output is in a steady state, so that the responsive output coincides with the responsive command value; a switching control unit that determines an output allocation of each of the resources and controls the plurality of resources so as to switch power outputs while maintaining the responsive output in a switching control mode through which the transient control mode is switched to the steady control mode and the steady control mode is switched to another steady control mode; an estimation unit that estimates an actual output change rate of each of the resources by measuring a tracking result of the output in response to a control command for each of the resources.

3. The steady-state control unit is 3. The power control system according to claim 1, wherein in the steady-state control mode, an output allocation of each of the resources is determined based on measurement information of a state of charge (SOC) of a storage battery among the resources, so as to enable output from the storage battery for a predetermined period of time.

4. The change control unit is 4. The power control system according to claim 1, wherein in the switching control mode, the output allocation of each of the resources is determined based on a resource usage plan including the usage time periods of each of the resources, so as to switch between the resource that stops outputting and the resource that starts outputting while maintaining the responsive output.

5. The power control system according to any one of claims 1 to 4, further comprising an estimation unit that estimates the smaller of the responsive output possible amount in the transient control mode and the responsive output possible amount in the steady control mode as the actual responsive output possible amount of the multiple resources.

6. An acquisition step of acquiring a response command including a response command value that changes stepwise with respect to the power output from an external device; a transient control step in which, when the response command value changes stepwise from a first response command value to a second response command value, in a transient control mode from the time point of the change until the response output of a plurality of resources that output power reaches the second response command value, the output distribution of each of the resources is determined based on the output change speed of each of the resources, and the plurality of resources are controlled so that the response output reaches the second response command value within a predetermined response time from the time point of the change of the response command value; a steady control step of controlling a plurality of resources by determining output distribution of each of the resources based on an operation rank and an output change range of each of the resources in a steady control mode during which the responsive output is in a steady state, so that the responsive output coincides with the responsive command value; a switching control step of determining an output allocation of each of the resources and controlling a plurality of the resources so as to switch power outputs while maintaining the responsive output in a switching control mode through which the transient control mode is switched to the steady-state control mode and the steady-state control mode is switched to another steady-state control mode, The changeover control step includes: A power control method in which, in the transfer control mode, the transfer time is determined to be the longest time among the times required for each of the resources that changes output to change its output based on the maximum output change rate of each of the resources, and the output distribution of the resources is determined so that all of the resources that change their output change their output within the transfer time.

7. An acquisition step of acquiring a response command including a response command value that changes stepwise with respect to the power output from an external device; a transient control step in which, when the response command value changes stepwise from a first response command value to a second response command value, in a transient control mode from the time point of the change until the response output of a plurality of resources that output power reaches the second response command value, the output distribution of each of the resources is determined based on the output change speed of each of the resources, and the plurality of resources are controlled so that the response output reaches the second response command value within a predetermined response time from the time point of the change of the response command value; a steady control step of controlling a plurality of resources by determining output distribution of each of the resources based on an operation rank and an output change range of each of the resources in a steady control mode during which the responsive output is in a steady state, so that the responsive output coincides with the responsive command value; a switching control step of controlling a plurality of resources by determining an output allocation of each of the resources so as to switch power outputs while maintaining the responsive output in a switching control mode through which the transient control mode is switched to the steady-state control mode and the steady-state control mode is switched to another steady-state control mode; and estimating an actual output change rate of each of the resources by measuring a tracking result of the output to a control command for each of the resources.

8. Computer, An acquisition unit that acquires a response command including a response command value that changes stepwise with respect to the power output from an external device; a transient control unit that, when the response command value changes stepwise from a first response command value to a second response command value, determines an output distribution of each of the resources based on an output change speed of each of the resources in a transient control mode from a time point of the change until a response output by a plurality of resources that output electric power reaches the second response command value in a predetermined response time from the time point of the change of the response command value, and controls the plurality of resources; A steady-state control unit controls a plurality of resources by determining output allocation of each of the resources based on an operation rank and an output change range of each of the resources in a steady-state control mode during which the responsive output is in a steady state, so that the responsive output coincides with the responsive command value; A program for causing the control unit to function as a switch control unit that determines an output allocation of each of the resources and controls a plurality of the resources so as to switch power outputs while maintaining the responsive output in a switch control mode through which the control unit transits from the transient control mode to the steady control mode and from the steady control mode to another steady control mode, The change control unit is The program determines, in the transfer control mode, the transfer time based on the maximum output change rate of each of the resources, which is the longest time among the times required for each of the resources to change its output, and determines the output distribution of the resources so that all of the resources that change their output change their output within the transfer time.

9. Computer, An acquisition unit that acquires a response command including a response command value that changes stepwise with respect to the power output from an external device; a transient control unit that, when the response command value changes stepwise from a first response command value to a second response command value, determines an output distribution of each of the resources based on an output change speed of each of the resources in a transient control mode from a time point of the change until a response output by a plurality of resources that output electric power reaches the second response command value in a predetermined response time from the time point of the change of the response command value, and controls the plurality of resources; A steady-state control unit controls a plurality of resources by determining output allocation of each of the resources based on an operation rank and an output change range of each of the resources in a steady-state control mode during which the responsive output is in a steady state, so that the responsive output coincides with the responsive command value; a switching control unit that determines an output allocation of each of the resources and controls the plurality of resources so as to switch power outputs while maintaining the responsive output in a switching control mode through which the transient control mode is switched to the steady control mode and the steady control mode is switched to another steady control mode; and an estimation unit that estimates an actual output change rate of each of the resources by measuring a tracking result of the output in response to a control command for each of the resources.

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