一起分布式风电谐振事故分析

Analysis of a Distributed Wind Power Resonance Accident

针对一起分布式风电谐振事件,通过分析故障录波数据、定位、谐振以及故障过程中的电压谐波频谱,提出了连跳风电出线的方案,能有效避免后期单纯切除风电汇集线导致风电母线电压互感器与电网发生谐振,对同类型事故或风险防范具有良好的工程借鉴意义。

In view of a resonance analysis event of distributed wind power,by analyzing the fault recording data,location,resonance and voltage harmonic spectrum in the process of fault,the scheme of continuous tripping of wind power outgoing line is proposed.This scheme can effectively avoid the resonance between the voltage transformer of the wind power bus and the power grid caused by the simple removal of the wind power collector line in the later period,which has a good engineering reference significance for the prevention of the same type of accidents or risks.