A power system recovery coordination optimization method and device and storage medium

CN122927795APending Publication Date: 2026-10-16STATE GRID ELECTRIC POWER RES INST +2
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Patent Information

Application Number
CN202610837209.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-10
Publication Date
2026-10-16

AI Technical Summary

Technical Problem

[0006]本发明的目的在于克服现有技术中的不足，提供一种电力系统恢复协调优化方法、装置及存储介质，能够解决现有技术对灾后输电线路抢修过程关注不足，不能充分考虑覆冰线路主动停运情形下如何协同优化的技术问题

Benefits of technology

[0060]The power system restoration coordination optimization method provided by this invention acquires fault data of the power system under extreme disaster conditions and inputs this fault data into a pre-constructed two-layer optimization model. The solver is then controlled to solve the upper-layer model of the two-layer optimization model to obtain the estimated objective function value for the current iteration number. Based on the estimated objective function value for the current iteration number, the line operation status parameters and node connectivity parameters for each time period are obtained. The solver is then controlled to solve the lower-layer model to obtain the actual objective function value for the current iteration number. Based on the estimated and actual objective function values, the upper and lower bounds are updated. Since both the upper and lower bounds are limited and the upper bound is greater than or equal to the lower bound, the gap between the upper and lower bounds is calculated until the gap is less than or equal to a pre-set gap threshold, completing the iteration and outputting the stable solution for the current iteration number. This method can solve the problem of coordinated optimization for post-disaster transmission line repair under the condition of active shutdown of icing lines, effectively improving the system load recovery level and providing a feasible decision support scheme for the rapid restoration of transmission line operation under extreme disaster conditions.

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Abstract

The application discloses the technical field of power transmission line repair and maintenance, and relates to a power system recovery coordination optimization method, device and storage medium.The method comprises the following steps: inputting fault data into a pre-constructed double-layer optimization model, solving an upper-layer model in the double-layer optimization model, and obtaining an estimated target function value of the current iteration number; based on each line repair completion time in the estimated target function value of the current iteration number, controlling a solver to solve a lower-layer model, and obtaining an actual target function value of the current iteration number; based on the estimated target function value and the actual target function value, updating an upper limit and a lower limit; in response to the upper limit and the lower limit being finite values and the upper limit being greater than or equal to the lower limit, calculating a gap between the upper limit and the lower limit until the gap is less than or equal to a preset gap threshold, and outputting a stable solution of the current iteration number.The application can solve the technical problem that the prior art cannot fully consider how to perform collaborative optimization under the condition of active shutdown of an icing line.
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