摘要
GE风力发电机组是江苏沿海的主力机型，装机容量较大，运行相对稳定，但在风电场场内回路忽然掉电后再次恢复供电时，会出现大量风机因报警“Overtemprature pitch motor变桨电机过热”而故障停机的现象，登塔检查后发现均是变桨电机的PTC热敏电阻触发器故障，下文将简述P11C热敏电阻及其触发器原理，并分析PTC热敏电阻触发器故障原因及可行性改进方法。
GE wind turbines in coastal Jiangsu Province has become the main model, the larger capacity, run relatively stable, but the wind farm after farm loop sudden power failure, when power is restored once again, there will be a large number of wind turbines because of alarm ＂Overtemprature pitch motor ＂downtime phenomenon,Boarded cabin inspection found are pitch motor PTC thermistor trigger fault, hereinafter briefly PTC thermistor and the trigger theory, then analyze PTC thermistor trigger cause of the malfunction and the feasibility of improved methods.
出处
《风力发电》
2015年第4期31-35,共5页
Wind Power
