水电站发电机二次起励时励磁风机启动失败原因分析及改进

Cause Analysis and Improvement of Excitation Fan Startup Failure during Secondary Excitation of Generator in a Hydropower Station

针对五凌电力发电集控中心某水电站励磁系统二次起励时励磁功率柜风机启动失败事件,分析目前励磁功率柜冷却风机电源切换逻辑中存在的缺陷,提出了有效的改进措施并加以实施,通过试验和实际运行,取得了良好的效果,有利于电站的安全稳定运行。

Aiming at the failure of fan start-up of excitation power cabinet during secondary excitation of excitation system of a hydropower station in Wuling power generation centralized control center, the defects existing in the power supply switching logic of excitation power cabinet cooling fan is analyzed, puts forward effective improvement measures and implements them, and obtains good results through test and actual operation, which is conducive to the safe and stable operation of the power station.