智能变电站继电保护动作诊断系统

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Abstract In order to improve the operation safety and operational efficiency of the secondary equipment of the power system, a relay protection action diagnosis system for intelligent substation is designed. The system can be integrated into the smart operation and maintenance platform. The protective action performance can be diagnosed by analyzing the various information and recording data which is generated by the protection device. Firstly, a data reference model based on unified semantics is established to realize the automatic matching and collection of diagnostic information. Secondly, the abnormal virtual loop is quickly located in the diagnosis diagram of the second virtual loop by analyzing the message, and the abnormal reason is given simultaneously. Finally, the comprehensive protective action diagnosis results are given, which can be sorted into the patrol inspection report to reduce the workload of the patrol inspection. The system can not only be used to guide the protection action analysis, but also to improve the level of relay protection operation and maintenance.

Key words： relay protection intelligent substation action diagnosis intelligent maintenance

Received: 20 December 2021

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http://dqjs.cesmedia.cn/EN/Y2022/V23/I6/77

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