水轮发电机组励磁起励回路对直流电源系统影响的分析

Analysis of Influence of Excitation Circuit of Hydro-generator Set on DC Power Supply System

自并励励磁系统水轮发电机组励磁起励时,对厂站直流电源系统生产大冲击和谐波干扰,造成35 kV线路断路器和故障录波装置开入量误动作。针对这一事故,分析了水轮发电机组励磁起励回路对直流电源系统的影响,并提出了整改措施。

When hydro-generator set of the self shunt excitation system started the excitation,it produced a large shock and harmonic interference to the DC power supply system of the plant station,causing the 35 kV line circuit breaker and the input of fault recording device to malfunction.In view of this accident,the impact of the excitation circuit of the hydro-generator set on the DC power supply system was analyzed,and rectification measure was proposed.