Research on the variable speed system of large power alternating current motor  

作　　者：Li Chongjian 

机构地区：[1]Automation Research and Design Institute of Metallurgical Industry, Beijing 100071, China

出　　处：《Engineering Sciences》2012年第1期30-37,共8页中国工程科学（英文版）

摘　　要：The development status of the variable speed system of large power AC(alternating current)motor drive in China is introduced.The large power AC drive fed by AC-AC converters(cycloconverters)has developed greatly,and some innovations on the theory and engineering technique have been realized.They have been applied to rolling mills,mine hoists,and so on,and remarkable economic and social benefit has been achieved.The development of AC drive fed by large power IGCT(integrated gate commutated thyristors)AC-DC-AC converter is also introduced.It has excellent performance and reliable operation,and has been used in traction.

关 键 词：large power AC motor CYCLOCONVERTER AC-DC-AC converter IGCT 

分 类 号：TM921.51[电气工程—电力电子与电力传动] TM34