Multiple system operation coordination system and method

Abstract

To properly operate a plurality of power systems in cooperation.SOLUTION: A multiple system operation coordination support system 10 comprises: a storage device 30 in which a program is stored; and a processor 40 and supports operation cooperation of power systems divided into a plurality of areas for every boundary. The processor functions as: an operation candidate facility extraction unit 42; an operation candidate facility sensitivity calculation unit 44; an operation object facility extraction unit 45; and a boundary update / model contraction unit 46 by executing the program. The operation candidate facility extraction unit extracts operation candidate facilities of external systems related to an own system of the power systems on the basis of a calculation purpose. The operation candidate facility sensitivity calculation unit calculates sensitivity to boundaries for every operation candidate facility. The operation object facility extraction unit extracts operation object facilities in order of sensitivity from the operation candidate facilities on the basis of calculation restriction. The boundary update / model contraction unit updates the boundaries and contracts system models of the external systems outside the updated boundaries on the basis of the operation object facilities.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a system and method for supporting cooperation between multiple power systems. [Background technology]

[0002] Due to the increase in distributed power sources, the power flows within power grids have become more complex than ever before, and studies are underway to achieve overall optimization through coordinated operation across multiple areas or voltage classes.

[0003] In the case of a large-scale system, the system model is divided and a system model is generated that condenses external systems other than the system being calculated, and power flow calculations or optimal power flow (OPF) calculations are performed.

[0004] Patent Document 1 describes a wide-area power system simulator and a simulation method for generating a model in which only the local system to be trained is left out of the whole system data, and other systems are reduced.

[0005] Patent document 2 describes a power system monitoring and control device that performs power flow calculations using transmission lines that are the boundary between the inside and outside of a calculated power system range, and calculation power system data replaced with a pseudo generator or a pseudo load. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2010-183703 A [Patent Document 2] JP 2012-010567 A Summary of the Invention [Problem to be solved by the invention]

[0007] In Patent Document 1 and Patent Document 2, a certain uniform contraction rule is applied, and therefore, making the contraction rule variable depending on the calculation purpose and the characteristics of the external system side is not taken into consideration. Furthermore, the user needs to specify the boundary points of the system and the contraction target according to the calculation purpose and constraints (calculation time and model scale), which puts a load on the model.

[0008] The present invention has been made in consideration of the above problems, and has an object to provide a technique for appropriately coordinating the operation of a plurality of power systems. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention provides a multiple system operation coordination support system comprising a storage device storing a program and a processor, and supporting operation coordination of a power system divided into a plurality of areas by boundaries, wherein the processor executes the program to function as an operation candidate equipment extraction unit that extracts operation candidate equipment of an external system related to the power system itself based on a calculation purpose, an operation candidate equipment sensitivity calculation unit that calculates the sensitivity of each operation candidate equipment to the boundary, an operation target equipment extraction unit that extracts operation target equipment from the operation candidate equipment in order of sensitivity based on the calculation constraint, and a boundary update / model reduction unit that updates the boundary based on the operation target equipment and reduces the system model of the external system outside the updated boundary. Effect of the Invention

[0010] According to the present invention, a plurality of power systems can be appropriately operated in a coordinated manner. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic configuration diagram of a power system in a first embodiment. [Diagram 2] FIG. 2 is a functional block diagram of the multiple system operation cooperation support system according to the first embodiment. [Diagram 3] 4 is a flowchart of a model generation process in the first embodiment. [Figure 4] FIG. 4 is a diagram for explaining the processes of S302 and S303 in the first embodiment. [Diagram 5] 13 is a sensitivity table of S303 in the first embodiment. [Figure 6] FIG. 4 is a diagram for explaining a calculation time estimation model in the first embodiment. [Figure 7] FIG. 4 is a diagram for explaining the process of S305 in the first embodiment. [Figure 8] 3 shows an overall sequence of power flow congestion management in coordination with an external system in the first embodiment. [Figure 9] FIG. 11 is a functional block diagram of a multiple system operation cooperation support system according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, specific examples of a system and method for supporting multiple system operation cooperation according to an embodiment of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments, but is defined by the claims. EXAMPLES

[0013] FIG. 1 is a functional block diagram of a power system in the first embodiment.

[0014] The power system 100 has boundaries set for each voltage class or geographical relation, and is managed under separate jurisdictions for a number of areas 1 to 7 and A to C. The areas may include a backbone system area 1, local supply system areas A to C, and distribution areas 2 to 7.

[0015] When area B is considered as the local system, area B has the right to control the equipment in the local system B (the generator G and the phase modifying equipment SC), but is not responsible for the equipment in the external systems 1 to 7, A, and C. However, the local system B is electrically connected to the external systems 1 to 7, A, and C via a network. Therefore, if the local system B and the external systems 1 to 7, A, and C can be operated in cooperation, it is expected that the overall optimization will be achieved. In particular, the adjacent ranges 101 to 105 are connected to each other via a network, and it is expected that the overall optimization will be achieved if the control of the equipment belonging to the adjacent ranges 101 to 105 is also coordinated. However, if all the equipment is modeled, the model scale becomes too large. It is necessary to select a certain number of equipment to reduce the model scale.

[0016] For example, among the generators G and the phase modifying equipment SC on the external systems 1 to 7, A, and C side, the equipment that is highly sensitive to the boundary point 106 with the local system B is the equipment that has a high degree of influence on the local system B. Therefore, the reduction level of the external system is adjusted by expanding the model of the equipment with high sensitivity and reducing the other equipment.

[0017] FIG. 2 is a functional block diagram of the multiple system operation cooperation support system in the first embodiment.

[0018] An embodiment of power flow congestion management within a system will be described below as an operational linkage of multiple systems. The multiple system operation cooperation support system 10 includes operation management terminals 11, 12, ... for each area, and a multiple system operation cooperation support device (hereinafter also referred to as a support device) 20. The multiple system operation cooperation support system 10 includes at least one computer as described below. The multiple system operation cooperation support system 10 may be configured by linking multiple computers. The computer may be a physical computer or a virtual computer.

[0019] The operation management terminals 11, 12, . . . and the support device 20 are communicatively connected to each other via a network N. The operation management terminals 11, 12, .

[0020] The operation management terminal 11 has an input device 13, a power flow congestion calculation unit 14, a system operation planner 15, and an output device 16. The operation management terminal 12 has the same configuration as the operation management terminal 11, and therefore a description thereof will be omitted.

[0021] A user inputs various types of information to the input device 13. The input device 13 may be, for example, a keyboard, a touch panel, or a mouse.

[0022] The power flow congestion calculation unit 14 has a system model output from the support device 20, and calculates a power flow congestion degree based on the system model.

[0023] The system operation planner 15 creates an operation plan for the system itself based on the operation request amount.

[0024] The output device 16 outputs information to a user and may be, for example, a display and a printer.

[0025] The support device 20 includes a storage device 30 and a processor 40. The storage device 30 includes a system data storage unit 31 and a calculation history storage unit 32.

[0026] The system data storage unit 31 stores system equipment data 33, system status data 34, equipment area affiliation information 35, operation target equipment information 36, sensitivity parameter setting information 37, and various programs.

[0027] The sensitivity parameter setting information 37 is input by the user via the input device 13 according to the purpose of the calculation.

[0028] The calculation history storage unit 32 stores a calculation execution history 38 when the processor 40 executes a calculation.

[0029] By executing the above program, the processor 40 functions as a target system model generation unit 41, an operation candidate equipment extraction unit 42, a calculation time estimation unit 43, an operation candidate equipment sensitivity calculation unit 44, an operation target equipment extraction unit 45, and a boundary update / model reduction unit 46.

[0030] The target system model generation unit 41 generates system models of the local system and the external system. The operation candidate facility extraction unit 42 extracts operation candidate facilities in the external system. The calculation time estimation unit 43 generates a calculation time estimation model 51 based on the past calculation execution history 38.

[0031] The operation candidate equipment sensitivity calculation unit 44 calculates the sensitivity of each operation candidate equipment to the boundary. The operation target equipment extraction unit 45 extracts operation target equipment from the operation candidate equipment in order of sensitivity based on the calculation constraints. The boundary update / model contraction unit 46 updates the boundary based on the operation target equipment and contracts the system model of the external system outside the updated boundary.

[0032] The support device 20 stores system data of the entire system, and generates a system model for the range required for calculation from the entire system data. The support device 20 performs calculations using the generated system model, and transmits the calculation results to the operation management terminals 11, 12, ... in each area.

[0033] FIG. 3 is a flowchart of a model generation process in the first embodiment.

[0034] The target system model generation unit 41 generates a system model of the own system within its jurisdiction and an external system within a range related to the own system based on the equipment data 33, the system status data 34, and the equipment area affiliation information 35 (S301). At this time, the target system model generation unit 41 sets a boundary point between the own system and the external system.

[0035] Next, the operation candidate equipment extraction unit 42 acquires the relationship between the calculation purpose and the operation candidate equipment from the operation target equipment information 36. When the user inputs the setting information 39 of the calculation purpose (congestion management) via the input device 13, the operation candidate equipment extraction unit 42 extracts all operation candidate equipment in the external system from the operation target equipment information 36 based on the operation target equipment information 36 and the calculation purpose setting information 39 (S302). In the case of congestion management, in order to monitor active power P, the operation candidate equipment extraction unit 42 extracts the generator G, the power storage equipment, and the controllable load (demand response demand DR in FIG. 4) that can control active power P as operation candidate equipment. On the other hand, the operation candidate equipment extraction unit 42 does not extract the phase modifying equipment SC that outputs reactive power as the operation candidate equipment.

[0036] Next, the operation candidate equipment sensitivity calculation unit 44 sets a sensitivity parameter from the sensitivity parameter setting information 37 according to the purpose of calculation. For example, the sensitivity parameter is a numerical value related to the power flow for each operation candidate equipment. In the case of congestion management, the numerical value related to the power flow is active power P or reactive power. The sensitivity parameter may be a combination of multiple parameters. The operation candidate equipment sensitivity calculation unit 44 calculates the sensitivity for the target boundary point for each operation candidate equipment extracted in S302 based on the acquired sensitivity parameter and calculation setting information 50 of an index for ranking the sensitivity (S303).

[0037] The operation candidate equipment sensitivity calculation unit 44 may calculate the sensitivity by a general method. For example, in the case of the sensitivity of the active power, the sensitivity is the active power flowing at the boundary point as a result of a power flow calculation in which only the equipment for which sensitivity calculation is to be performed is connected and the active power of the rated capacity of the equipment is injected.

[0038] The operation candidate equipment sensitivity calculation unit 44 may select a sensitivity calculation method from among general methods depending on the purpose of the calculation. When the calculation purpose is voltage control other than congestion management, the operation candidate equipment sensitivity calculation unit 44 calculates the sensitivity of reactive power to the boundary point for equipment that can control reactive power (generator G or phase modifying equipment SC).

[0039] Next, the calculation time estimation unit 43 generates a calculation time estimation model 51 based on the past calculation execution history 38.

[0040] Next, a calculation constraint condition is set by the user via the input device 13 in the operation target equipment extraction unit 45. For example, when a constraint condition as an example of a "calculation constraint" is a calculation time condition (calculation constraint information 52), the operation target equipment extraction unit 45 determines an upper limit number of operation target equipment (operation variables) that satisfies the calculation constraint information 52 based on the calculation time estimation model 51. The operation target equipment extraction unit 45 extracts operation target equipment of the external system in order of sensitivity based on the determined upper limit number (S304).

[0041] Next, the boundary update / model reduction unit 46 expands the system model to the operation target equipment extracted in S304 (S305). At this time, the boundary update / model reduction unit 46 leaves the main path from the boundary point to the operation target equipment in the system model. In other words, the boundary update / model reduction unit 46 sets a new boundary outside the main path and the operation target equipment, and reduces the system model outside the boundary point to generate a system model expanded to a part of the external system.

[0042] Fig. 4 is a diagram for explaining the processes of S302 and S303 in the first embodiment. In Fig. 4, DR indicates a demand response demand, and BT indicates a storage battery.

[0043] In S302, the operation candidate equipment extraction unit 42 also specifies areas to be operation candidates. When the area B is the local system, the operation candidate equipment extraction unit 42 does not extract the upper trunk system area 1 as an operation candidate equipment, but extracts the area between the local supply areas A and B and the lower distribution areas 4 and 5 of the same voltage class as operation candidate equipment.

[0044] In S303, the operation candidate equipment sensitivity calculation unit 44 calculates sensitivity to the target boundary point for each piece of operation target equipment extracted in S302. The operation candidate equipment sensitivity calculation unit 44 specifies the linkage with the boundary point based on the connection relationship of the system model. For example, the operation candidate equipment sensitivity calculation unit 44 links the generators G1 and G2 to the boundary AB.

[0045] FIG. 5 is a sensitivity table of S303 in the first embodiment.

[0046] The operation candidate equipment sensitivity calculation unit 44 ranks the sensitivity parameters. An operation candidate equipment having a high sensitivity to the boundary point is estimated to have a high impact on the system itself and is highly worth operating. Therefore, when reducing the model in S305, the operation candidate equipment sensitivity calculation unit 44 leaves the operation candidate equipment having a high sensitivity to the boundary point without reducing it in order to calculate it as a controlled object (operated object equipment).

[0047] The sensitivity parameter may be a single parameter or a combination of multiple parameters. The operation candidate equipment sensitivity calculation unit 44 may use not only the sensitivity parameters set when calculating the sensitivity, but also parameters of the operation candidate equipment, such as the operation cost.

[0048] The index may be, for example, a combination of the sensitivity a of the active power and the operation cost b of the equipment. For example, the higher the sensitivity a of the active power and the lower the operation cost b, the higher the priority, so the sensitivity rank index may be the sensitivity a of the active power divided by the operation cost b of the equipment. Note that the prioritized parameter may be weighted.

[0049] FIG. 6 is a diagram for explaining a calculation time estimation model in the first embodiment.

[0050] The operation target equipment extraction unit 45 determines the upper limit number of pieces of operation target equipment to be included in the external system based on the calculation time constraint (calculation constraint information 52) input by the user via the input device 13. At this time, the operation target equipment extraction unit 45 prioritizes operation target equipment in its own system, and then determines the number of operation target equipment in the external system as a cumulative total.

[0051] The operation target equipment extraction unit 45 models the relationship between the number of operation variables (operation target equipment) and the estimated calculation time based on the past calculation execution history 38. At this time, the calculation load and calculation time increase as the number of operation target equipment increases. Note that, as shown in FIG. 6(b), when the calculation load is high, the calculation time may increase even if there are fewer operation variables, depending on the algorithm for the calculation purpose.

[0052] FIG. 7 is a diagram for explaining the process of S305 in the first embodiment.

[0053] When the top five pieces of equipment (generators G1-G4 and storage battery BT1) are extracted as operation target equipment in S304, the boundary update / model reduction unit 46 sets the path from the boundary point to the operation target equipment G1-G4, BT1 as the main path, as shown in (a). The boundary update / model reduction unit 46 expands the system model without reducing the transmission lines on the main path and the operation target equipment G1-G4, BT1. The boundary update / model reduction unit 46 sets a new boundary outside the main path and the operation target equipment G1-G4, BT1.

[0054] Next, the boundary update / model reduction unit 46 reduces the external system side at the newly set boundary point as shown in (b). At this time, the boundary update / model reduction unit 46 reduces to a virtual power source or a virtual load depending on the characteristics (upper or lower) of the external system. For example, the boundary update / model reduction unit 46 reduces the external power source on the upstream side of the system (higher voltage class) as a virtual power source, and reduces the downstream side (lower voltage class) as a virtual load. The reduction method is not limited.

[0055] Through the above process, the support device 20 can generate a system model that is expanded to include a part of the own system and the external system, up to the operation target equipment that has a large influence on the own system.

[0056] FIG. 8 shows an overall sequence of power flow congestion management in cooperation with an external system in the first embodiment.

[0057] When the area B operation management terminal 12 is set as the local system and the area A operation management terminal 11 is set as the cooperation target area, the area B operation management terminal 12 requests the support device 10 to generate a system model that is expanded to include the external system side (S801).

[0058] The support device 10 generates a system model in which the external system side is also expanded (S802). The support device 10 transmits the generated system model in which the external system side is also expanded to the support device 10 (S803).

[0059] The area B operations management terminal 12 uses the system model output from the support device 10 to calculate the power flow congestion degree, with the power source on the external system side also being treated as a facility to be operated (S804).

[0060] The area B operations management terminal 12 transmits the requested amount of power supply operation within the area A to the area A operations management terminal 11 (S805).

[0061] The area A operations management terminal 11 requests the support device 10 to generate a system model for area A (S806).

[0062] The support device 10 generates a system model only for area A (S807). The support device 10 transmits the generated system model for area A to the area A operation management terminal 11 (S808). At this time, the support device 10 always stores the latest overall system data, thereby preventing inconsistencies in the versions of system data for each of the operation management terminals 11, 12, ... for each area.

[0063] The area A operations management terminal 11 creates an operation plan for the area A based on the received operation request amount (S809). At this time, the support device 10 calculates the operation amount that can be reflected in the operation request amount.

[0064] The area A operations management terminal 11 transmits the calculated amount of operation of the power supply on the area A side to the area B operations management terminal 12 (S810).

[0065] The area B operations control terminal 12 fixes the external system side and calculates the power flow congestion degree in the local system again (S812). The area B operations control terminal 12 determines the operation amount of each power source in the local system based on the calculation result of the power flow congestion degree (S811).

[0066] In this sequence, the area B operation management terminal 12 is the local system, and the area A operation management terminal 11 is the cooperation destination area. However, the cooperation destination areas may include area C and power distribution areas 4 and 5. In the case of area C and power distribution areas 4 and 5, processing similar to this sequence may be executed. Furthermore, when there is transmission and reception of operation amounts with other areas, the area B operation management terminal 12 aggregates the operation amounts of the external power sources of all areas and then recalculates the power flow congestion degree.

[0067] According to this configuration, the multiple system operation cooperation support system 10 includes a storage device 30 in which a program is stored, and a processor 40, and supports operation cooperation of a power system divided into a plurality of areas by boundaries. The processor 40 executes the program to function as an operation candidate facility extraction unit 42, an operation candidate facility sensitivity calculation unit 44, an operation target facility extraction unit 45, and a boundary update / model contraction unit 46. The operation candidate facility extraction unit 42 extracts operation candidate facilities of an external system related to the power system itself based on the setting information 39 of the calculation objective. The operation candidate facility sensitivity calculation unit 44 calculates the sensitivity to the boundary for each operation candidate facility. The operation target facility extraction unit 45 extracts operation target facilities from the operation candidate facilities in order of sensitivity based on the calculation constraint information 52. The boundary update / model contraction unit 46 updates the boundary based on the operation target facility, and contracts the system model of the external system outside the updated boundary.

[0068] This makes it possible to extract equipment to be operated according to its sensitivity to the boundary, enabling appropriate coordinated operation of multiple power systems.

[0069] The operation candidate facility sensitivity calculation unit 44 sets the active power of each operation candidate facility as a sensitivity parameter, thereby making it possible to appropriately reflect the influence on the own system based on the active power.

[0070] The operation candidate equipment sensitivity calculation unit 44 calculates the sensitivity based on the sensitivity of the active power and the operation cost of the operation candidate equipment. This makes it possible to reduce the operation cost of the operation candidate equipment while operating a plurality of power systems in a coordinated manner.

[0071] The operation target equipment extraction unit 45 generates a calculation time estimation model 51 based on the past calculation execution history 38, determines an upper limit number of operation target equipment that satisfies the calculation constraint information 52 based on the generated calculation time estimation model 51, and extracts operation target equipment from the operation candidate equipment in order of sensitivity based on the determined upper limit number. This makes it possible to appropriately extract operation target equipment that is highly sensitive to the boundary.

[0072] The boundary update / model contraction unit 46 sets new boundaries on the main route to the operation target facility and on the outside of the operation target facility to expand the system model of the own system. This allows the system model of the own system to be appropriately expanded by the newly set boundaries. EXAMPLES

[0073] The second embodiment illustrates an example of a multiple system operation cooperation support system 110 in which a support device 120 has a power flow congestion calculation unit 131. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be simplified.

[0074] FIG. 9 is a functional block diagram of a multiple system operation cooperation support system in the second embodiment.

[0075] The support device 120 of the multiple system operation cooperation support system 110 further functions as a common calculation function unit 130 common to the operation management terminals 111, 112, ... by executing a program. The common calculation function unit 130 has a power flow congestion calculation unit 131 and a system operation planner 132. The operation management terminals 111, 112, ... have an input device 13 and an output device 16.

[0076] According to this configuration, the operation management terminals 111, 112, ... do not have a calculation processing unit, and only need to request each calculation process from the support device 120. This facilitates maintenance and updates of the multiple system operation cooperation support system 110. Furthermore, when adding a new calculation processing function, simply adding it to the common calculation function unit 130 allows the operation management terminals 111, 112, ... in all areas to use the new calculation function.

[0077] The present invention is not limited to the above-mentioned embodiment, but includes various modified examples. For example, the above-mentioned embodiment has been described in detail to clearly explain the present invention, and is not necessarily limited to those including all of the configurations described. Also, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Also, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration. [Explanation of symbols]

[0078] 1...core system area, 2 to 7...distribution area, 10...multiple system operation coordination support system, 20...multiple system operation coordination support device, 30...storage device, 38...calculation execution history, 40...processor, 42...operation candidate equipment extraction unit, 44...operation candidate equipment sensitivity calculation unit, 45...operation target equipment extraction unit, 46...boundary update / model reduction unit, 51...calculation time estimation model, 52...calculation constraint information, 100...power system, 110...multiple system operation coordination support system, 120...multiple system operation coordination support device, A to C...regional supply system area

Claims

1. A multiple system operation cooperation support system that supports operation cooperation of a power system divided into a plurality of areas at each boundary, the multiple system operation cooperation support system including: The processor executes the program, an operation candidate equipment extraction unit that extracts operation candidate equipment of an external system related to the power system itself based on a calculation purpose; an operation candidate equipment sensitivity calculation unit that calculates a sensitivity of each of the operation candidate equipment to the boundary; an operation target equipment extraction unit that extracts operation target equipment from the operation candidate equipment in order of sensitivity based on a calculation constraint; a boundary updating / model reduction unit that updates the boundary based on the operation target facility and reduces a system model of the external system outside the updated boundary.

2. the operation candidate facility sensitivity calculation unit sets a value related to a power flow for each of the operation candidate facilities as a sensitivity parameter; The power flow figures include at least active power or reactive power. The multiple system operation cooperation support system according to claim 1 .

3. The operation target equipment extraction unit calculates the sensitivity based on a sensitivity of a numerical value related to the power flow and an operation cost of the operation candidate equipment. The multiple system operation cooperation support system according to claim 2.

4. the operation target equipment extraction unit generates a calculation time estimation model based on a past calculation execution history, determines an upper limit number of operation target equipments that satisfy the calculation constraint based on the generated calculation time estimation model, and extracts the operation target equipments from the operation candidate equipments in order of sensitivity based on the determined upper limit number; The multiple system operation cooperation support system according to claim 1 .

5. the boundary update / model contraction unit sets a new boundary on a main route to the operation target facility and on an outer side of the operation target facility to expand the system model of the own system; The multiple system operation cooperation support system according to claim 1 .

6. A multiple system operation cooperation support method in which a multiple system operation cooperation support system supports operation cooperation of a power system divided into a plurality of areas by boundaries, comprising: The multiple system operation cooperation support system includes: an operation candidate facility extraction step of extracting operation candidate facilities of an external system related to the power system itself among the power systems based on a calculation purpose; a sensitivity calculation step of setting a value related to the power flow for each of the operation candidate facilities as a sensitivity parameter and calculating a sensitivity of each of the operation candidate facilities to the boundary; an operation target equipment extraction step of extracting operation target equipment from the operation candidate equipment in order of the sensitivity based on the calculation constraint; A multiple system operation coordination support method, comprising: a boundary updating and model contraction step of updating the boundary based on the operation target facility, and contracting a system model of the external system outside the updated boundary.

7. The power flow figures include at least active power or reactive power. The method for supporting cooperation between multiple system operations according to claim 6.

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