Abstract
Research on power system fault diagnosis and method of relay protection action require the complete primary equipment topological structure of the grid. This article propose an evaluation method based on power network topology structure, which is easily implemented and it can assess the performance of breakers and protections in an entire power system. Considering the missing or error information, a protection motion capability analysis method based on genetic algorithm is proposed on the basis on that method. The simulation results on IEEE three-machine nine-bus system show that the algorithm is capable of discriminating the fault fast and accurately, and has excellent fault-tolerance capability.Keywords: Relay Protection; evaluation of action; Genetic Algorithm; fault-tolerance capability
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