基于交流电网电压畸变的晶闸管有源逆变失败故障分析

Failure Analysis of Thyristor Active Inverter Based on AC Network Voltage Distortion

文章分析了某焦化厂干熄焦提升机晶闸管有源逆变失败案例,找出产生逆变失败的原因。针对电网侧交流电源异常造成的逆变失败故障进行了处理,完善了预防措施编制了相应的排查手顺书。

This paper analyzes the failure case of thyristor active inverter of CDQ elevator in a coking plant, and finds out the cause of inverter failure. The inverter failure caused by abnormal AC power supply on the power grid side is handled, the preventive measures are improved, and the corresponding troubleshooting operation manual is prepared.