串级调速系统逆变器换相失败的因素分析与控制策略  

Factors Analysis and Control Tactics on Commutation Failure for Convertor of Cascade Speed Regulation

作　　者：苑亚敏[1] 石新春[1] 王艾萌[1] 

机构地区：[1]华北电力大学电气工程学院,河北保定071003

出　　处：《电机与控制应用》2008年第12期32-35,共4页Electric machines & control application

摘　　要：换相失败是串级调速逆变器反馈系统的常见故障,与许多因素有关。针对串级调速系统的特点,分析了换相失败的原因,提出了一些避免换相失败的措施,包括换相失败的预防措和防止继发性换相失败的措施。Commutation failure, one of the most common faults in the inverter of cascade control system, is related to many factors. Based on the characteristic of cascade control system, the reason on commutation failure in the inverter is analyzed, the measures against commutation failure are given, including the preventive measures and the measures against followed commutation failure.

关 键 词：串级调速 逆变器 换相失败 

分 类 号：TM464[电气工程—电器]