交流电动轮卡车逆变器高压故障分析

Analysis of AC motor wheel truck inverter high-voltage failure

介绍了交流变频调速在电动轮卡车上的应用,为了解决交流电动轮卡车逆变器典型的高压放电故障,通过分析卡车运行实时故障数据和母线电流与温度推导,解决了高压放电故障。结果表明:母线表面温升直接影响逆变器稳定,进而影响卡车运行效率。

The article introduces the application of AC variable frequency speed regulating.In order to solve the typical high voltage discharge fault of AC electric wheel motor truck inverters,through analyzing the real-time fault data of truck operation and the derivation of bus current and temperature,we solve the high voltage discharge fault.The results show that the surface temperature rise of the bus bar directly affects the stability of the inverter,thus influences the operational efficiency of the truck.