永磁式真空断路器的仿真建模与故障分析  

Modeling and Failure Analysis of a Permanent Magnet Vacuum Circuit Breaker

作　　者：王帮田[1] 姜亚军[1] 张杰[1] 刘莎[2] 刘定新[2] 

机构地区：[1]许继集团有限公司,河南许昌461001 [2]西安交通大学电气工程学院.西安710049

出　　处：《高压电器》2014年第5期36-41,共6页High Voltage Apparatus

摘　　要：真空断路器是中压配电网的关键设备,其运行可靠性对于配电网安全至关重要。由于断路器本身结构和电气特性比较复杂,如何通过少量的运行状态参数(如在线监测获得的分合闸行程曲线)准确评判其工作性能,是广受关注的问题。笔者针对许继集团永磁式真空断路器开展研究,采用ADAMS与ANSOFT软件相结合,找到了断路器中电特性、力特性和机械运动特性的相互关系,并进而在在线监测主轴角位移行程曲线和永磁线圈电流基础上,提出了评估断路器机械状态的方法及判据。Vacuum circuit breaker is a key equipment of medium-voltage distribution network, its operational reliability is crucial to the safety of the distribution network. Because of the structural and electrical complexity of vacuum circuit breaker, how to accurately evaluate its working performance by a small number of running parameters,e.g. the time-travel curve of moving contact obtained by online monitoring,is a problem of much concern. In this paper, a permanent magnet vacuum circuit breaker manufactured by XJ Croup Corporation is studied. The software ADAMS and ANSOFT is used for modeling, and the relationship among electrical characteristics, force characteristics and mechanical motion characteristics is unraveled. Accordingly, the method and criteria for mechanical performance evaluation of the circuit breaker are put forward by using the angular displacement curve of principle axis and the current waveform of permanent magnet coil obtained by online monitoring system.

关 键 词：永磁式真空断路器 ADAMS 四参数法 在线监测 

分 类 号：TM561.2[电气工程—电器]