The sensitivity verification system of relay protection in distribution network based on multi-source information fusion is proposed to ensure the stable and safe operation of distribution network.The system data layer uses multiple electric energy sensors to collect fault recording data such as voltage and current of relay protection devices in the distribution network.After the of protection manager service layer packages and unpacks the fault recording data,the multi-sensor collected data is trans-mitted to the application layer through the communication server.After recording and analyzing the fault recorder data,the dis-tribution network fault diagnosis results are obtained through the multi-source information fusion module using D-S evidence theory.The setting calculation module completes the relay protection setting calculation and sensitivity verification according to the fault diagnosis results.The experiment shows that multi-source information fusion can improve the accuracy of fault diag-nosis of the system,and the system can effectively verify the sensitivity of relay protection of distribution network and ensure the safe and stable operation of distribution network.
关键词
多源信息/配电网/继电保护/灵敏度校验/故障录波器/D-S证据理论
Key words
multi-source information/distribution network/relay protection/sensitivity verification/fault recorder/D-S evi-dence theory
维普
万方数据