摘要
本文介绍了应用于带钢轧机上的日立大容量三电平变频器。针对该变频器在运行中出现的一起N侧直流过电压故障.详细描述了故障处理过程.给出了该类故障的一般处理思路,并深入地分析了故障发生的机理。
The article introduces one type of Hitachi 3-Level high capacity converter applied to drive strip mill motors. During running process, it went wrong with the fault of N-side DC overvollage. The paper describes the course of detecting fault. The author present univesal shooting ideas about the type of trouble, and analyse the truth of the fault occurring.
出处
《变频器世界》
2014年第2期75-77,共3页
The World of Inverters
