Emergency control decision system, method and storage medium

By coordinating the identification, verification, and optimization of emergency control strategies through five subsystems, the reliability problem of emergency control decisions under highly uncertain power grids has been solved, and the adaptability and safety stability of emergency control strategies have been achieved, supporting the stable operation of new power systems.

CN116093924BActive Publication Date: 2026-04-14NARI TECH CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-09
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing technologies have poor reliability and effectiveness in emergency control decisions under highly uncertain power grid operation modes, and cannot effectively adapt to rapid and random changes in power grid operation modes.

Method used

The system adopts a five-subsystem architecture: operation mode data processing, on-duty policy identification, emergency policy verification, emergency control policy optimization, and emergency control policy update. By identifying, verifying, and optimizing emergency control policies, its adaptability and security stability are ensured, and timely switching and rapid updates of online/offline policies are achieved.

Benefits of technology

This ensures that emergency control strategies can adapt to rapid and random changes in power grid operation modes, supporting the safe, stable, and economical operation of the new power system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an emergency control decision system and method and a storage medium, and relates to the technical field of power grid operation control, which comprises a subsystem for safety and stability analysis files; a subsystem for updating the current strategy state and fault checking priority of the corresponding section moment in the expected fault management table; a subsystem for updating the safety checking state, fault optimization priority and current strategy safety and stability risk of the corresponding section moment in the expected fault management table; a subsystem for updating the strategy optimization state of the corresponding section moment in the expected fault management table; and a subsystem for updating the current strategy of the emergency control device according to the current strategy state, safety checking state and strategy optimization state. The coordinated operation of the five subsystems can quickly identify the mismatch and inadaptation of the current strategy of the emergency control, guarantee the reliability and effectiveness of the emergency control decision under the strong uncertainty of the power grid operation mode, and adapt to the rapid and random changes of the power grid operation mode.
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Description

Technical Field

[0001] This invention relates to the field of power system control technology, specifically to an emergency control decision system, method, and storage medium. Background Technology

[0002] Emergency control is a crucial guarantee for the stability and reliability of power grid operation and an indispensable part of realizing a new power system based on new energy sources. With the large-scale grid integration of renewable energy sources such as wind and solar, emergency control decisions face complex uncertainties. To address the inherent volatility and uncertainty of renewable energy and mitigate the impact of random prediction errors, the scientific and rapid development of effective and economical emergency control strategies is of great significance for mitigating these impacts and improving the stable operation of the power grid. The existing "offline calculation, real-time matching" emergency control decision-making model faces significant challenges.

[0003] Patent application CN202010254245.2 discloses an online pre-decision-making method for steady-state safety emergency control that considers stability control strategies. This patent application proposes an online pre-decision-making method for steady-state safety emergency control based on the identification of the current stability control strategy, but it fails to explain how to ensure that emergency control decisions can adapt to changes in the power grid's operating mode under highly uncertain environments. Patent application CN201510342899 discloses an adaptive emergency control system and method for power system safety and stability. This method proposes an emergency control system for power system safety and stability that considers the future state of the power grid. However, the predicted future state of the power grid under highly uncertain environments is inaccurate, and the emergency control strategy based on this inaccurate prediction still cannot guarantee adaptability to the power grid's operating mode. Patent application CN201610315429 discloses a safety and stability adaptive emergency control decision-making method based on on-the-fault control measures, proposing a safety and stability adaptive emergency control decision-making method based on on-the-fault control measures that specifies anticipated faults. However, it fails to explain the priority issue of emergency control decisions for a large number of anticipated faults under highly uncertain environments.

[0004] Therefore, existing technologies cannot guarantee the reliability of emergency control decisions under highly uncertain power grid operation modes, and cannot effectively adapt to the rapid and random changes in power grid operation modes. Summary of the Invention

[0005] The purpose of this invention is to provide an emergency control decision system, method, and storage medium to solve the problems of poor reliability and effectiveness of emergency control decisions in the prior art under highly uncertain power grid operation modes.

[0006] In a first aspect, the present invention discloses an emergency control decision-making system, comprising:

[0007] The operation mode data processing subsystem is used to obtain files for safety and stability analysis based on the power grid operation mode and the status of emergency control devices. The files include a fault table file that has a mapping relationship with the anticipated fault management table.

[0008] The duty policy identification subsystem is used to update the duty policy status S1 and fault verification priority L1 at the corresponding section time in the expected fault management table according to the duty policy of the expected fault.

[0009] The emergency strategy verification subsystem is used to perform static and transient security analysis on faults according to the fault verification priority L1, taking into account the current policy, and update the security verification status S2, fault optimization priority L2, and current policy security and stability risk R at the corresponding section time in the expected fault management table.

[0010] The emergency control strategy optimization subsystem is used to search for strategies that meet the emergency control optimization objectives according to the order of fault optimization priority L2 and the order of the magnitude of the safety and stability risk R of the current strategy, taking into account the current strategy, and update the strategy optimization status S3 of the corresponding section time in the expected fault management table.

[0011] The emergency control strategy update subsystem is used to update the current strategy of the emergency control device according to the current strategy state S1, the safety verification state S2, and the strategy optimization state S3.

[0012] Furthermore, updating the current policy status S1 and fault verification priority L1 at the corresponding section moment in the anticipated fault management table according to the current policy of the anticipated fault includes:

[0013] If the fault f at section time t is not matched with the current policy, then set the current policy state S1 = -1 and the fault verification priority L1 = high.

[0014] If the fault f at section time t matches the current policy, but the controllable quantity of the associated emergency control device E is insufficient, then set the current policy state S1 = 0 and the fault verification priority L1 = medium.

[0015] If the fault f at the cross-section time t matches the current policy and the associated emergency control device E has sufficient controllable quantity, then set the current policy state S1 = 0 and the fault verification priority L1 = low.

[0016] Furthermore, the step of performing static and transient security analysis on the fault, taking into account the current-value strategy, and updating the security verification state S2 and fault optimization priority L2 at the corresponding cross-section time in the anticipated fault management table includes:

[0017] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,fIf the value is less than 0, then set the fault safety check state S2 = -1 and the fault optimization priority L2 = high;

[0018] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to 0 and less than ε goal Then set the fault safety check state S2 = 0, and the fault optimization priority L2 = , where ε goal Optimize the target value of safety and stability margin for emergency control strategies;

[0019] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to ε goal Then set the fault safety check state S2=1 and the fault optimization priority L2=low.

[0020] Furthermore, static and transient security analyses of the faults are performed on the current policy, and the current policy security and stability risk R is updated to include:

[0021] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f If the value is less than 0, then the safety and stability risk of the current strategy is R = ρ. t,f C t,f ;

[0022] Where, ρ t,f Let C be the probability of failure f occurring at time t in the cross-section. t,f The cost of additional control measures to ensure the safety and stability of the power grid after a fault occurs at time t at the cross section and the emergency control strategy operates correctly.

[0023] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to 0 and less than ε goal Then, the safety and stability risk of the current strategy is R = ρ. t,f ×α f (η t,f )×(ε goal -η t,f );

[0024] Where, α f Let ε be the control cost function for unit safety margin after a fault f occurs at time t of the cross section. goal Optimize the target value of safety and stability margin for emergency control strategies;

[0025] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to ε goal Then, the safety and stability risk of the current strategy is R = ρ.t,f ×α f (η t,f )×(η t,f -ε goal ).

[0026] Furthermore, the search strategy that satisfies the emergency control optimization objective includes:

[0027] The search for emergency control strategies for anticipated faults with a high priority of L2 is based on the order of the current strategy's safety and stability risk R from largest to smallest.

[0028] The search for fault optimization priority L2 is equal to the expected fault emergency control strategy. The fault optimization priority L2 is the strategy that searches for emergency control optimization targets in descending order of the current strategy safety and stability risk R.

[0029] The search prioritizes emergency control strategies for anticipated faults with a priority L2 of low. Strategies with low priority L2 are searched in descending order of the current strategy's safety and stability risk R.

[0030] Furthermore, the method for setting the emergency control optimization target is as follows:

[0031] Set emergency control strategies to optimize the target value of safety and stability margin ε. goal =ε0;

[0032] Given that the emergency control strategy for fault f at time t is a, the emergency control strategy for fault f at time t1 is a1, and the emergency control strategy for fault f at the previous time t0 is a0, assess the safety and stability margin of the power grid when emergency control strategy a0 is adopted for fault f1 at time t1.

[0033] like Then ε goal Remain unchanged; if Then update

[0034] The safety and stability margin of the emergency control optimization target

[0035] Furthermore, updating the strategy optimization state S3 at the corresponding section time in the anticipated fault management table includes:

[0036] After generating the security and stability analysis file, set the strategy optimization state S3 for all faults to -1;

[0037] Set the fault strategy optimization status S3, which is currently searching for emergency control optimization target strategies, to 0;

[0038] Set the fault strategy optimization state S3, which has completed the emergency control optimization target strategy, to 1.

[0039] Further, updating the on-duty strategy of the emergency control device based on the current strategy state S1, the safety verification state S2, and the strategy optimization state S3 includes:

[0040] If the current policy state S1 is -1 or 0, then switch the emergency control current policy to the offline policy.

[0041] If the safety verification status S2 is -1 or 0, then switch the emergency control on-duty policy to the offline policy;

[0042] If the strategy optimization state S3 changes from 0 to 1, the emergency control optimization strategy will be sent to the emergency control device, and the current emergency control strategy will be switched to the emergency control optimization strategy.

[0043] Furthermore, the anticipated fault management table includes the cross-section time T, fault F, associated emergency control device E, on-duty strategy state S1, safety verification state S2, strategy optimization state S3, fault verification priority L1, fault optimization priority L2, and safety and stability risk R of the on-duty strategy.

[0044] Secondly, the present invention discloses an emergency control decision-making method, comprising:

[0045] Based on the power grid operation mode and the status of emergency control devices, a document for safety and stability analysis is obtained, which includes a fault table file that has a mapping relationship with the anticipated fault management table;

[0046] Based on the on-duty strategy for anticipated faults, update the on-duty strategy status S1 and fault verification priority L1 for the corresponding section time in the anticipated fault management table.

[0047] According to the order of fault verification priority L1, static security analysis and transient security analysis of the fault are performed, taking into account the current duty strategy. The security verification status S2, fault optimization priority L2 and current duty strategy security and stability risk R of the corresponding section time in the expected fault management table are updated.

[0048] Based on the order of fault optimization priority L2 and the order of the magnitude of the safety and stability risk R of the current strategy, and taking into account the search for strategies that meet the emergency control optimization objectives, the strategy optimization status S3 at the corresponding section time in the expected fault management table is updated.

[0049] Update the on-duty strategy of the emergency control device according to the current strategy state S1, the safety verification state S2, and the strategy optimization state S3.

[0050] Furthermore, updating the current policy status S1 and fault verification priority L1 at the corresponding section moment in the anticipated fault management table according to the current policy of the anticipated fault includes:

[0051] If the fault f at section time t is not matched with the current policy, then set the current policy state S1 = -1 and the fault verification priority L1 = high.

[0052] If the fault f at section time t matches the current policy, but the controllable quantity of the associated emergency control device E is insufficient, then set the current policy state S1 = 0 and the fault verification priority L1 = medium.

[0053] If the fault f at the cross-section time t matches the current policy and the associated emergency control device E has sufficient controllable quantity, then set the current policy state S1 = 0 and the fault verification priority L1 = low.

[0054] Furthermore, the step of performing static and transient security analysis on the fault, taking into account the current-value strategy, and updating the security verification state S2 and fault optimization priority L2 at the corresponding cross-section time in the anticipated fault management table includes:

[0055] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f If the value is less than 0, then set the fault safety check state S2 = -1 and the fault optimization priority L2 = high;

[0056] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to 0 and less than ε goal Then set the fault safety check state S2 = 0, and the fault optimization priority L2 = , where ε goal Optimize the target value of safety and stability margin for emergency control strategies;

[0057] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to ε goal Then set the fault safety check state S2=1 and the fault optimization priority L2=low.

[0058] Furthermore, static and transient security analyses of the faults are performed on the current policy, and the current policy security and stability risk R is updated to include:

[0059] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f If the value is less than 0, then the safety and stability risk of the current strategy is R = ρ. t,f C t,f ;

[0060] Where, ρ t,fLet C be the probability of failure f occurring at time t in the cross-section. t,f The cost of additional control measures to ensure the safety and stability of the power grid after a fault occurs at time t at the cross section and the emergency control strategy operates correctly.

[0061] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to 0 and less than ε goal Then, the safety and stability risk of the current strategy is R = ρ. t,f ×α f (η t,f )×(ε goal -η t,f );

[0062] Where, α f Let ε be the control cost function for unit safety margin after a fault f occurs at time t of the cross section. goal Optimize the target value of safety and stability margin for emergency control strategies;

[0063] If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to ε goal Then, the safety and stability risk of the current strategy is R = ρ. t,f ×α f (η t,f )×(η t,f -ε goal ).

[0064] Furthermore, the search strategy that satisfies the emergency control optimization objective includes:

[0065] The search for emergency control strategies for anticipated faults with a high priority of L2 is based on the order of the current strategy's safety and stability risk R from largest to smallest.

[0066] The search for fault optimization priority L2 is equal to the expected fault emergency control strategy. The fault optimization priority L2 is the strategy that searches for emergency control optimization targets in descending order of the current strategy safety and stability risk R.

[0067] The search prioritizes emergency control strategies for anticipated faults with a priority L2 of low. Strategies with low priority L2 are searched in descending order of the current strategy's safety and stability risk R.

[0068] Furthermore, the method for setting the emergency control optimization target is as follows:

[0069] Set emergency control strategies to optimize the target value of safety and stability margin ε. goal =ε0;

[0070] Given that the emergency control strategy for fault f at time t is a, the emergency control strategy for fault f at time t1 is a1, and the emergency control strategy for fault f at the previous time t0 is a0, assess the safety and stability margin of the power grid when emergency control strategy a0 is adopted for fault f1 at time t1.

[0071] like Then ε goal Remain unchanged; if Then update

[0072] The safety and stability margin of the emergency control optimization target

[0073] Furthermore, updating the strategy optimization state S3 at the corresponding section time in the anticipated fault management table includes:

[0074] After generating the security and stability analysis file, set the strategy optimization state S3 for all faults to -1;

[0075] Set the fault strategy optimization status S3, which is currently searching for emergency control optimization target strategies, to 0;

[0076] Set the fault strategy optimization state S3, which has completed the emergency control optimization target strategy, to 1.

[0077] Further, updating the on-duty strategy of the emergency control device based on the current strategy state S1, the safety verification state S2, and the strategy optimization state S3 includes:

[0078] If the current policy state S1 is -1 or 0, then switch the emergency control current policy to the offline policy.

[0079] If the safety verification status S2 is -1 or 0, then switch the emergency control on-duty policy to the offline policy;

[0080] If the strategy optimization state S3 changes from 0 to 1, the emergency control optimization strategy will be sent to the emergency control device, and the current emergency control strategy will be switched to the emergency control optimization strategy.

[0081] Thirdly, the present invention discloses a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any of the second aspects.

[0082] Fourthly, the present invention discloses an electronic device, including a processor and a storage medium;

[0083] The storage medium is used to store instructions;

[0084] The processor is configured to operate according to the instructions to perform the steps of the method described in any of the second aspects.

[0085] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0086] According to the above technical solution, the embodiments of the present invention have at least the following effects: The present application identifies the on-duty strategy through an on-duty strategy identification subsystem; the emergency strategy verification subsystem performs static and transient security analysis considering the on-duty strategy to verify whether the emergency control on-duty strategy meets the requirements for safe and stable operation of the power grid; the emergency control strategy optimization subsystem comprehensively considers the adaptability and safety and stability risks of the on-duty strategy to obtain a strategy that meets the emergency control optimization objective; and the emergency control strategy update subsystem updates the on-duty strategy in the emergency control device based on the on-duty strategy status, security verification status, and strategy optimization status. The coordinated operation of the five subsystems quickly identifies situations where the emergency control on-duty strategy is mismatched or unsuitable, ensuring the reliability and effectiveness of emergency control decisions under highly uncertain power grid operation modes. The present application ensures that the emergency control strategy can adapt to rapid and random changes in power grid operation modes, supporting the safe, stable, and economical operation of the new power system. Attached Figure Description

[0087] Figure 1 This is a schematic diagram of the decision-making system of the present invention;

[0088] Figure 2 This is a flowchart of the decision-making method of the present invention. Detailed Implementation

[0089] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0090] Example 1

[0091] To ensure that emergency control strategies can adapt to rapid changes in power grid operation modes and support the safe, stable, and economical operation of new power systems, this invention proposes an emergency control decision-making system adapted to the uncertainty of power grid operation modes. This invention employs a five-parallel subsystem architecture: an operation mode data processing subsystem, a current duty strategy identification subsystem, an emergency strategy verification subsystem, an emergency control strategy optimization subsystem, and an emergency control strategy update subsystem. The operation mode data processing subsystem continuously tracks changes in power grid operation modes and the status of emergency control devices, updating the data files for emergency control strategy identification, verification, and optimization in real time. The current duty strategy identification subsystem identifies the current emergency control strategy based on the latest power grid operation mode. The emergency strategy verification subsystem verifies whether the current emergency control strategy meets the requirements for safe and stable power grid operation. The emergency control strategy optimization subsystem optimizes the emergency control strategy by comprehensively considering the adaptability and safety and stability risks of the current duty strategy, dynamically adjusting the emergency control optimization objectives based on the adaptability of the current duty strategy. The emergency control strategy update subsystem enables timely switching between online / offline strategies and rapid updates of online strategies in emergency control devices based on the current duty strategy status, safety verification status, and strategy optimization status. The coordinated operation of the five subsystems quickly identifies mismatches and inadequacies in the on-duty emergency control strategies, and optimizes the emergency control strategies in an orderly manner based on the safety and stability risks of the on-duty strategies, ensuring the adaptability of the emergency control decision-making system under highly uncertain power grid operation modes and emergency control device states.

[0092] The present invention will be described below through specific embodiments.

[0093] like Figure 1 As shown, an emergency control decision-making system includes an operation mode data processing subsystem, an on-duty strategy identification subsystem, an emergency strategy verification subsystem, an emergency control strategy optimization subsystem, and an emergency control strategy update subsystem.

[0094] The operation mode data processing subsystem is used to obtain power flow files, stability files, fault table files, and control measure space files for safety and stability analysis based on the power grid operation mode and the status of emergency control devices. Among them, the fault table file and the anticipated fault management table have a mapping relationship.

[0095] In this application, the anticipated fault management table includes the cross-section time T, fault F, associated emergency control device E, on-duty strategy state S1, safety verification state S2, strategy optimization state S3, fault verification priority L1, fault optimization priority L2, and safety and stability risk R of the on-duty strategy.

[0096] The duty strategy identification subsystem is used to update the duty strategy status S1 and fault verification priority L1 at the corresponding section time in the expected fault management table, based on whether the duty strategy of the expected fault meets the control requirements. If the control requirements are met, the subsystem updates the duty strategy status S1 and fault verification priority L1 at the corresponding section time in the expected fault management table.

[0097] In this system, the specific methods for setting the fault duty policy state S1 and the fault verification priority L1 are as follows:

[0098] 1) If the fault f at section time t is not matched with the current policy, then set the current policy state S1 = -1 and the fault verification priority L1 = high;

[0099] 2) If the fault f at section time t matches the current strategy but the controllable quantity of the associated emergency control device E is insufficient, then set the current strategy state S1 = 0 and the fault verification priority L1 = medium.

[0100] 3) If the fault f at the section time t matches the current policy and the associated emergency control device E has sufficient controllable quantity, then set the current policy state S1 = 0 and the fault verification priority L1 = low.

[0101] The emergency strategy verification subsystem is used to perform static and transient security analysis on faults according to the fault verification priority L1, taking into account the current policy, to determine whether the safety and stability requirements are met. If the safety and stability requirements are met, the subsystem updates the safety verification status S2, fault optimization priority L2, and current policy safety and stability risk R at the corresponding cross-section time in the expected fault management table.

[0102] The specific steps for setting the safety verification state S2 and fault optimization priority L2 in this system are as follows:

[0103] 1) If the emergency control strategy is activated at time t of the fault at section f, the safety and stability margin η of the power grid remains unchanged. t,f If the value is less than 0, then set the fault safety check state S2 = -1 and the fault optimization priority L2 = high;

[0104] 2) If the emergency control strategy for fault f is activated at time t of the fault section, the safety and stability margin η of the power grid will remain unchanged. t,f Greater than or equal to 0 and less than ε goal , ε goal To optimize the safety and stability margin target value for the emergency control strategy, set the fault safety verification state S2 = 0 and the fault optimization priority L2 = medium.

[0105] 3) If the emergency control strategy is activated at time t of the fault at section f, the safety and stability margin η of the power grid remains unchanged. t,f Greater than or equal to ε goal Then set the fault safety check state S2=1 and the fault optimization priority L2=low.

[0106] In this system, the calculation method for the current policy security and stability risk R is as follows:

[0107] 1) If the emergency control strategy is activated at time t of the fault at section f, the safety and stability margin η of the power grid remains unchanged. t,f If the value is less than 0, the formula for calculating the safety and stability risk of the current strategy is:

[0108] R = ρ t,f C t,f

[0109] In the above formula, ρ t,f Let C be the probability of failure f occurring at time t in the cross-section. t,f The cost of additional control measures to ensure the safety and stability of the power grid after a fault occurs at time t at the cross section and the emergency control strategy operates correctly.

[0110] 2) If the emergency control strategy for fault f is activated at time t of the fault section, the safety and stability margin η of the power grid will remain unchanged. t,f Greater than or equal to 0 and less than ε goal The formula for calculating the safety and stability risk of the in-service strategy is as follows:

[0111] R = ρ t,f ×α f (η t,f )×(ε goal -η t,f )

[0112] In the above formula, α f The unit safety margin control cost function after a failure f can be obtained by fitting historical data.

[0113] 3) If the emergency control strategy is activated at time t of the fault at section f, the safety and stability margin η of the power grid remains unchanged. t,f Greater than or equal to ε goal The formula for calculating the safety and stability risk of the in-service strategy is as follows:

[0114] R = ρ t,f ×α f (η t,f )×(η t,f -ε goal ).

[0115] The emergency control strategy optimization subsystem is used to search for strategies that meet the emergency control optimization objectives according to the order of fault optimization priority L2 and the order of the magnitude of the safety and stability risk R of the current strategy, taking into account the current strategy, and update the strategy optimization status S3 of the corresponding section time in the expected fault management table.

[0116] The specific steps for setting the strategy for emergency control optimization objectives in this system are as follows:

[0117] 1) Search optimization priority L2 equals high expected fault emergency control strategy. Fault optimization priority L2 is high and the strategy of emergency control optimization target is searched in order of large to small safety and stability risk of the current strategy.

[0118] 2) The search optimization priority L2 is equal to the expected emergency control strategy in the search. The emergency control optimization target is searched in descending order of the current strategy safety and stability risk.

[0119] 3) Search optimization priority L2 equals low expected fault emergency control strategies. Fault optimization priority L2 is low and the strategy is searched in descending order of the current strategy safety and stability risk.

[0120] In this system, the method for setting emergency control optimization targets involves the following steps:

[0121] 1) Based on expert experience and the requirements for safe and stable operation of the power grid, set emergency control strategies to optimize the target value of safety and stability margin ε. goal =ε0;

[0122] 2) If the emergency control strategy for fault f at time t is a, then the emergency control strategy for fault f at time t1 is a1, and the emergency control strategy for fault f at the previous time t0 is a0. Evaluate the safety and stability margin of the power grid when fault f1 at time t1 adopts emergency control strategy a0, denoted as .

[0123] 3) If Then ε goal Remain unchanged;

[0124] 4) If Then update

[0125] 5) The safety and stability margin target for optimizing the emergency control strategy is:

[0126] The specific steps for setting the strategy optimization state S3 in this system are as follows:

[0127] 1) After the cross-section time is updated, the cross-section time update here refers to the process subsystem generating a file for safety and stability analysis and setting the strategy optimization state S3 for all faults to -1.

[0128] 2) Set the fault strategy optimization status S3, which is currently searching for emergency control optimization strategies, to 0;

[0129] 3) Set the fault strategy optimization status S3, which has completed the emergency control optimization strategy, to 1.

[0130] The emergency control strategy update subsystem is used to update the current strategy of the emergency control device according to the current strategy state S1, the safety verification state S2, and the strategy optimization state S3.

[0131] The specific steps for updating the emergency control strategy in this system are as follows:

[0132] 1) After the cross-section is updated, if the current policy status S1 is -1 or 0, then switch the emergency control current policy to the offline policy.

[0133] 2) After the emergency control verification is completed, if the safety verification status S2 is -1 or 0, the emergency control current policy is switched to the offline policy.

[0134] 3) After the emergency control optimization is completed, the fault strategy optimization state S3 changes from 0 to 1. Then the emergency control optimization strategy is sent to the emergency control device, and the current emergency control strategy is switched to the emergency control optimization strategy.

[0135] This invention comprehensively considers the feasibility and adaptability of emergency control strategies, prioritizes the verification of the adaptability of emergency control strategies with insufficient feasibility, and performs emergency control strategy optimization search and classification according to the adaptability of anticipated faults. For strategies with the same optimization priority, emergency control strategies are optimized and searched according to the risk of the emergency control strategy. This enables rapid detection of situations such as mismatch and failure of emergency control strategies, ensuring that emergency control strategies can adapt to rapid and random changes in power grid operation modes, and supporting the safe, stable and economical operation of new power systems.

[0136] The operation mode data processing subsystem continuously tracks changes in the power grid operation mode and the status of emergency control devices, updating the data files for emergency control strategy identification, verification, and optimization in real time. The on-duty strategy identification subsystem identifies the on-duty emergency control strategy based on the latest power grid operation mode. The emergency strategy verification subsystem verifies whether the on-duty emergency control strategy meets the requirements for safe and stable power grid operation. The emergency control strategy optimization subsystem optimizes the emergency control strategy by comprehensively considering the adaptability and safety and stability risks of the on-duty strategy, dynamically adjusting the emergency control optimization objectives based on the adaptability of the on-duty strategy. The emergency control strategy update subsystem enables timely switching between online and offline strategies and rapid updates of online strategies in emergency control devices based on the on-duty strategy status, safety verification status, and strategy optimization status. The coordinated operation of these five subsystems quickly identifies situations where emergency control on-duty strategies are mismatched or unsuitable, and optimizes emergency control strategies in an orderly manner based on the safety and stability risks of the on-duty strategy, ensuring the reliability and effectiveness of emergency control decisions under highly uncertain power grid operation modes.

[0137] Example 2

[0138] Based on the inventive concept of Embodiment 1, this embodiment also provides a method for making emergency control decisions, such as... Figure 2 As shown, the method includes the following steps: Based on the power grid operation mode and the status of the emergency control device, obtain a file for safety and stability analysis, the file including a fault table file that maps to the anticipated fault management table; based on the anticipated fault's duty strategy, update the duty strategy status S1 and fault verification priority L1 at the corresponding cross-section time in the anticipated fault management table; according to the fault verification priority L1, perform static and transient safety analysis on the fault, taking into account the duty strategy, and update the safety verification status S2, fault optimization priority L2, and duty strategy safety and stability risk R at the corresponding cross-section time in the anticipated fault management table; according to the fault optimization priority L2 and the size of the duty strategy safety and stability risk R, search for strategies that meet the emergency control optimization objective, taking into account the duty strategy, and update the strategy optimization status S3 at the corresponding cross-section time in the anticipated fault management table; based on the duty strategy status S1, safety verification status S2, and strategy optimization status S3, update the duty strategy of the emergency control device.

[0139] In this application, the anticipated fault management table includes the cross-section time T, fault F, associated emergency control device E, on-duty strategy state S1, safety verification state S2, strategy optimization state S3, fault verification priority L1, fault optimization priority L2, and safety and stability risk R of the on-duty strategy.

[0140] In a further step, the specific methods for setting the fault-response strategy state S1 and the fault verification priority L1 are as follows:

[0141] 1) If the fault f at section time t is not matched with the current policy, then set the current policy state S1 = -1 and the fault verification priority L1 = high;

[0142] 2) If the fault f at section time t matches the current strategy but the controllable quantity of the associated emergency control device E is insufficient, then set the current strategy state S1 = 0 and the fault verification priority L1 = medium.

[0143] 3) If the fault f at the section time t matches the current policy and the associated emergency control device E has sufficient controllable quantity, then set the current policy state S1 = 0 and the fault verification priority L1 = low.

[0144] In a further step, the specific steps for setting the safety verification state S2 and the fault optimization priority L2 are as follows:

[0145] 1) If the emergency control strategy is activated at time t of the fault at section f, the safety and stability margin η of the power grid remains unchanged. t,f If the value is less than 0, then set the fault safety check state S2 = -1 and the fault optimization priority L2 = high;

[0146] 2) If the emergency control strategy for fault f is activated at time t of the fault section, the safety and stability margin η of the power grid will remain unchanged. t,f Greater than or equal to 0 and less than ε goal , ε goal To optimize the safety and stability margin target value for the emergency control strategy, set the fault safety verification state S2 = 0 and the fault optimization priority L2 = medium.

[0147] 3) If the emergency control strategy is activated at time t of the fault at section f, the safety and stability margin η of the power grid remains unchanged. t,f Greater than or equal to ε goal Then set the fault safety check state S2=1 and the fault optimization priority L2=low.

[0148] In a further method, the calculation method for the current policy safety and stability risk R is as follows:

[0149] 1) If the emergency control strategy is activated at time t of the fault at section f, the safety and stability margin η of the power grid remains unchanged. t,f If the value is less than 0, the formula for calculating the safety and stability risk of the current strategy is:

[0150] R = ρ t,f C t,f

[0151] In the above formula, ρ t,f Let C be the probability of failure f occurring at time t in the cross-section. t,f The cost of additional control measures to ensure the safety and stability of the power grid after a fault occurs at time t at the cross section and the emergency control strategy operates correctly.

[0152] 2) If the emergency control strategy for fault f is activated at time t of the fault section, the safety and stability margin η of the power grid will remain unchanged. t,f Greater than or equal to 0 and less than ε goal The formula for calculating the safety and stability risk of the in-service strategy is as follows:

[0153] R = ρ t,f ×α f (η t,f )×(ε goal -η t,f )

[0154] In the above formula, α f The unit safety margin control cost function after a failure f can be obtained by fitting historical data.

[0155] 3) If the emergency control strategy is activated at time t of the fault at section f, the safety and stability margin η of the power grid remains unchanged. t,f Greater than or equal to ε goal The formula for calculating the safety and stability risk of the in-service strategy is as follows:

[0156] R = ρ t,f ×α f (η t,f )×(η t,f -ε goal ).

[0157] In a further method, the strategy setting method for emergency control optimization objectives includes the following specific steps:

[0158] 1) Search optimization priority L2 equals high expected fault emergency control strategy. Fault optimization priority L2 is high and the strategy of emergency control optimization target is searched in order of large to small safety and stability risk of the current strategy.

[0159] 2) The search optimization priority L2 is equal to the expected emergency control strategy in the search. The emergency control optimization target is searched in descending order of the current strategy safety and stability risk.

[0160] 3) Search optimization priority L2 equals low expected fault emergency control strategies. Fault optimization priority L2 is low and the strategy is searched in descending order of the current strategy safety and stability risk.

[0161] In a further method, the emergency control optimization target setting method has the following specific steps:

[0162] 1) Based on expert experience and the requirements for safe and stable operation of the power grid, set emergency control strategies to optimize the target value of safety and stability margin ε. goal =ε0;

[0163] 2) If the emergency control strategy for fault f at time t is a, then the emergency control strategy for fault f at time t1 is a1, and the emergency control strategy for fault f at the previous time t0 is a0. Evaluate the safety and stability margin of the power grid when fault f1 at time t1 adopts emergency control strategy a0, denoted as .

[0164] 3) If Then ε goal Remain unchanged;

[0165] 4) If Then update

[0166] 5) The safety and stability margin target for optimizing the emergency control strategy is:

[0167] In a further step, the method for setting the policy optimization state S3 is as follows:

[0168] 1) After the cross-section time is updated, the cross-section time update here refers to the process subsystem generating a file for safety and stability analysis and setting the strategy optimization state S3 for all faults to -1.

[0169] 2) Set the fault strategy optimization status S3, which is currently searching for emergency control optimization strategies, to 0;

[0170] 3) Set the fault strategy optimization status S3, which has completed the emergency control optimization strategy, to 1.

[0171] In a further method, the emergency control strategy update method has the following specific steps:

[0172] 1) After the cross-section is updated, if the current policy status S1 is -1 or 0, then switch the emergency control current policy to the offline policy.

[0173] 2) After the emergency control verification is completed, if the safety verification status S2 is -1 or 0, the emergency control current policy is switched to the offline policy.

[0174] 3) After the emergency control optimization is completed, the fault strategy optimization state S3 changes from 0 to 1. Then the emergency control optimization strategy is sent to the emergency control device, and the current emergency control strategy is switched to the emergency control optimization strategy.

[0175] This invention comprehensively considers the feasibility and adaptability of emergency control strategies, prioritizes the verification of the adaptability of emergency control strategies with insufficient feasibility, and performs emergency control strategy optimization search and classification according to the adaptability of anticipated faults. For strategies with the same optimization priority, emergency control strategies are optimized and searched according to the risk of the emergency control strategy. This enables rapid detection of situations such as mismatch and failure of emergency control strategies, ensuring that emergency control strategies can adapt to rapid and random changes in power grid operation modes, and supporting the safe, stable and economical operation of new power systems.

[0176] Example 3

[0177] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0178] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0179] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0180] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0181] The embodiments of this application also provide an electronic device, which may be a tablet computer, a smartphone, a personal digital assistant, etc.

[0182] Electronic devices may include: memory, processor, communication interface and communication bus, the communication bus being used to enable communication between these components.

[0183] The memory is used to store all model data, as well as various data such as calculation program instructions corresponding to the emergency decision control method and system provided in the embodiments of this application. The memory can be random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable read-only memory (EPROM), etc.

[0184] When the processor reads and runs computer program instructions stored in memory that correspond to the emergency decision control method, it executes the emergency decision control method provided in the embodiments of this application.

[0185] A processor may be an integrated circuit chip with signal processing capabilities. The processors mentioned above can be general-purpose processors, including central processing units (CPUs), network processors (NPs), etc.; they can also be digital signal processors (DSPs), discrete gate or transistor logic devices, or discrete hardware components.

[0186] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. An emergency control decision-making system, characterized in that, include: The operation mode data processing subsystem is used to obtain files for safety and stability analysis based on the power grid operation mode and the status of emergency control devices. The files include a fault table file that has a mapping relationship with the anticipated fault management table. The duty policy identification subsystem is used to update the duty policy status S1 and fault verification priority L1 at the corresponding section time in the expected fault management table according to the duty policy of the expected fault. The emergency strategy verification subsystem is used to perform static and transient security analysis on faults according to the fault verification priority L1, taking into account the current policy, and update the security verification status S2, fault optimization priority L2, and current policy security and stability risk R at the corresponding section time in the expected fault management table. The emergency control strategy optimization subsystem is used to search for strategies that meet the emergency control optimization objectives according to the order of fault optimization priority L2 and the order of the magnitude of the safety and stability risk R of the current strategy, taking into account the current strategy, and update the strategy optimization status S3 of the corresponding section time in the expected fault management table. The emergency control strategy update subsystem is used to update the current strategy of the emergency control device according to the current strategy state S1, the safety verification state S2, and the strategy optimization state S3.

2. The emergency control decision-making system according to claim 1, characterized in that, The step of updating the duty strategy status S1 and fault verification priority L1 at the corresponding section time in the expected fault management table according to the duty strategy of the expected fault includes: If the fault f at section time t is not matched with the current policy, then set the current policy state S1 = -1 and the fault verification priority L1 = high. If the fault f at section time t matches the current policy, but the controllable quantity of the associated emergency control device E is insufficient, then set the current policy state S1 = 0 and the fault verification priority L1 = medium. If the fault f at the cross-section time t matches the current policy and the associated emergency control device E has sufficient controllable quantity, then set the current policy state S1 = 0 and the fault verification priority L1 = low.

3. The emergency control decision-making system according to claim 1, characterized in that, The process of performing static and transient security analysis on faults, taking into account the current-value strategy, and updating the security verification status S2 and fault optimization priority L2 at the corresponding cross-section time in the anticipated fault management table includes: If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f If the value is less than 0, then set the fault safety check state S2 = -1 and the fault optimization priority L2 = high; If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to 0 and less than ε goal Then set the fault safety check state S2 = 0, and the fault optimization priority L2 = , where ε goal Optimize the target value of safety and stability margin for emergency control strategies; If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to ε goal Then set the fault safety check state S2=1 and the fault optimization priority L2=low.

4. The emergency control decision-making system according to claim 1, characterized in that, Perform static and transient security analyses of the faults, taking into account the current policy, and update the current policy's security and stability risk R, including: If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f If the value is less than 0, then the safety and stability risk of the current strategy is R = ρ. t,f C t,f ; Where, ρ t,f Let C be the probability of failure f occurring at time t in the cross-section. t,f The cost of additional control measures to ensure the safety and stability of the power grid after a fault occurs at time t at the cross section and the emergency control strategy operates correctly. If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to 0 and less than ε g o al Then, the safety and stability risk of the current strategy is R = ρ. t,f ×α f (η t,f )×(ε goal -η t,f ); Where, α f Let ε be the control cost function for unit safety margin after a fault f occurs at time t of the cross section. goal Optimize the target value of safety and stability margin for emergency control strategies; If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to ε g o al Then, the safety and stability risk of the current strategy is R = ρ. t,f ×α f (η t,f )×(η t,f -ε goal ).

5. The emergency control decision-making system according to claim 1, characterized in that, The search strategies that satisfy the emergency control optimization objective include: The search for emergency control strategies for anticipated faults with a high priority of L2 is based on the order of the current strategy's safety and stability risk R from largest to smallest. The search for fault optimization priority L2 is equal to the expected fault emergency control strategy. The fault optimization priority L2 is the strategy that searches for emergency control optimization targets in descending order of the current strategy safety and stability risk R. The search prioritizes emergency control strategies for anticipated faults with a priority L2 of low. Strategies with low priority L2 are searched in descending order of the current strategy's safety and stability risk R.

6. The emergency control decision-making system according to claim 5, characterized in that, The method for setting the emergency control optimization target is as follows: Set emergency control strategies to optimize the target value of safety and stability margin ε. goal =ε0; Given that the emergency control strategy for fault f at time t is a, the emergency control strategy for fault f at time t1 is a1, and the emergency control strategy for fault f at the previous time t0 is a0, assess the safety and stability margin of the power grid when emergency control strategy a0 is adopted for fault f1 at time t1. like Then ε goal Remain unchanged; if Then update The safety and stability margin of the emergency control optimization target 7. The emergency control decision-making system according to claim 1, characterized in that, The strategy optimization state S3 at the corresponding section time in the anticipated fault management table includes: After generating the security and stability analysis file, set the strategy optimization state S3 for all faults to -1; Set the fault strategy optimization status S3, which is currently searching for emergency control optimization target strategies, to 0; Set the fault strategy optimization state S3, which has completed the emergency control optimization target strategy, to 1.

8. The emergency control decision-making system according to claim 1, characterized in that, The step of updating the duty strategy of the emergency control device based on the current strategy state S1, the safety verification state S2, and the strategy optimization state S3 includes: If the current policy state S1 is -1 or 0, then switch the emergency control current policy to the offline policy. If the safety verification status S2 is -1 or 0, then switch the emergency control on-duty policy to the offline policy; If the strategy optimization state S3 changes from 0 to 1, the emergency control optimization strategy will be sent to the emergency control device, and the current emergency control strategy will be switched to the emergency control optimization strategy.

9. The emergency control decision-making system according to claim 1, characterized in that, The anticipated fault management table includes the cross-section time T, fault F, associated emergency control device E, on-duty strategy state S1, safety verification state S2, strategy optimization state S3, fault verification priority L1, fault optimization priority L2, and safety and stability risk R of the on-duty strategy.

10. An emergency control decision-making method, characterized in that, include: Based on the power grid operation mode and the status of emergency control devices, a document for safety and stability analysis is obtained, which includes a fault table file that has a mapping relationship with the anticipated fault management table; Based on the on-duty strategy for anticipated faults, update the on-duty strategy status S1 and fault verification priority L1 for the corresponding section time in the anticipated fault management table. According to the order of fault verification priority L1, static security analysis and transient security analysis of the fault are performed, taking into account the current duty strategy. The security verification status S2, fault optimization priority L2 and current duty strategy security and stability risk R of the corresponding section time in the expected fault management table are updated. Based on the order of fault optimization priority L2 and the order of the magnitude of the safety and stability risk R of the current strategy, and taking into account the search for strategies that meet the emergency control optimization objectives, the strategy optimization status S3 at the corresponding section time in the expected fault management table is updated. Update the on-duty strategy of the emergency control device according to the current strategy state S1, the safety verification state S2, and the strategy optimization state S3.

11. The emergency control decision-making method according to claim 10, characterized in that, The step of updating the duty strategy status S1 and fault verification priority L1 at the corresponding section time in the expected fault management table according to the duty strategy of the expected fault includes: If the fault f at section time t is not matched with the current policy, then set the current policy state S1 = -1 and the fault verification priority L1 = high. If the fault f at section time t matches the current policy, but the controllable quantity of the associated emergency control device E is insufficient, then set the current policy state S1 = 0 and the fault verification priority L1 = medium. If the fault f at the cross-section time t matches the current policy and the associated emergency control device E has sufficient controllable quantity, then set the current policy state S1 = 0 and the fault verification priority L1 = low.

12. The emergency control decision-making method according to claim 10, characterized in that, The process of performing static and transient security analysis on faults, taking into account the current-value strategy, and updating the security verification status S2 and fault optimization priority L2 at the corresponding cross-section time in the anticipated fault management table includes: If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f If the value is less than 0, then set the fault safety check state S2 = -1 and the fault optimization priority L2 = high; If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to 0 and less than ε goal Then set the fault safety check state S2 = 0, and the fault optimization priority L2 = , where ε goal Optimize the target value of safety and stability margin for emergency control strategies; If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to ε goal Then set the fault safety check state S2=1 and the fault optimization priority L2=low.

13. The emergency control decision-making method according to claim 10, characterized in that, Perform static and transient security analyses of the faults, taking into account the current policy, and update the current policy's security and stability risk R, including: If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f If the value is less than 0, then the safety and stability risk of the current strategy is R = ρ. t,f C t,f ; Where, ρ t,f Let C be the probability of failure f occurring at time t in the cross-section. t,f The cost of additional control measures to ensure the safety and stability of the power grid after a fault occurs at time t at the cross section and the emergency control strategy operates correctly. If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to 0 and less than ε g o al Then, the safety and stability risk of the current strategy is R = ρ. t,f ×α f (η t,f )×(ε goal -η t,f ); Where, α f Let ε be the control cost function for unit safety margin after a fault f occurs at time t of the cross section. goal Optimize the target value of safety and stability margin for emergency control strategies; If the emergency control strategy for fault f at time t of the cross section is activated, the safety and stability margin η of the power grid t,f Greater than or equal to ε g o al Then, the safety and stability risk of the current strategy is R = ρ. t,f ×α f (η t,f )×(η t,f -ε goal ).

14. The emergency control decision-making method according to claim 10, characterized in that, The search strategies that satisfy the emergency control optimization objective include: The search for emergency control strategies for anticipated faults with a high priority of L2 is based on the order of the current strategy's safety and stability risk R from largest to smallest. The search for fault optimization priority L2 is equal to the expected fault emergency control strategy. The fault optimization priority L2 is the strategy that searches for emergency control optimization targets in descending order of the current strategy safety and stability risk R. The search prioritizes emergency control strategies for anticipated faults with a priority L2 of low. Strategies with low priority L2 are searched in descending order of the current strategy's safety and stability risk R.

15. The emergency control decision-making method according to claim 14, characterized in that, The method for setting the emergency control optimization target is as follows: Set emergency control strategies to optimize the target value of safety and stability margin ε. goal =ε0; Given that the emergency control strategy for fault f at time t is a, the emergency control strategy for fault f at time t1 is a1, and the emergency control strategy for fault f at the previous time t0 is a0, assess the safety and stability margin of the power grid when emergency control strategy a0 is adopted for fault f1 at time t1. like Then ε goal Remain unchanged; if Then update The safety and stability margin of the emergency control optimization target 16. The emergency control decision-making method according to claim 10, characterized in that, The strategy optimization state S3 at the corresponding section time in the anticipated fault management table includes: After generating the security and stability analysis file, set the strategy optimization state S3 for all faults to -1; Set the fault strategy optimization status S3, which is currently searching for emergency control optimization target strategies, to 0; Set the fault strategy optimization state S3, which has completed the emergency control optimization target strategy, to 1.

17. The emergency control decision-making method according to claim 10, characterized in that, The step of updating the duty strategy of the emergency control device based on the current strategy state S1, the safety verification state S2, and the strategy optimization state S3 includes: If the current policy state S1 is -1 or 0, then switch the emergency control current policy to the offline policy. If the safety verification status S2 is -1 or 0, then switch the emergency control on-duty policy to the offline policy; If the strategy optimization state S3 changes from 0 to 1, the emergency control optimization strategy will be sent to the emergency control device, and the current emergency control strategy will be switched to the emergency control optimization strategy.

18. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program performs the steps of the method according to any one of claims 10-17.

19. An electronic device, characterized in that, Including processor and storage media; The storage medium is used to store instructions; The processor is configured to operate according to the instructions to perform the steps of the method according to any one of claims 10-17.

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