交流接触器触头弹跳的仿真及影响因素  

Simulation of Contact Bounce of AC Contactor and Study of Its Influence Factors

作　　者：纽春萍[1] 陈德桂[1] 李兴文[1] 刘颖异[1] 戴瑞成[1] 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,西安710049

出　　处：《电工技术学报》2007年第10期85-90,108,共7页Transactions of China Electrotechnical Society

摘　　要：交流接触器在接通电路时,动触头产生的弹跳不仅影响系统的性能,而且降低接触器的电寿命。本文建立了接触器闭合过程的动态数学模型,利用ADAMS软件的用户自编程实现了闭合过程的机械运动方程、电磁场方程和电路方程的耦合求解,并采用泊松模型处理了触头和铁心的接触约束,实现了对接触器动态全过程和触头弹跳的仿真分析。在此基础上研究了合闸相角、触头弹簧参数和线圈电压对动触头弹跳的影响,通过实验对计算结果进行了验证,为研究接触器的动态特性和触头弹跳提供了途径。When AC contactor turns on the circuit, the movable contact bounces occur. The bounces have effect on the system performance and the lifetime of contactors. In this paper, a dynamic mathematic model of AC contactor is proposed. The electric circuit, electromagnetic field and mechanical differential coupling equations are solved by self-programming routine of ADAMS secondary development. Based on the POISSON model, the contact constraints are realized. The dynamic behavior of contactor and contact bounce are simulated. The influences of the electrical circuit parameters and contact spring parameters on the contact bounce are investigated. The results are verified by experiments. The proposed method is useful in the dynamic behavior and contact bounce research.

关 键 词：交流接触器 动特性 触头弹跳 耦合 仿真 

分 类 号：TM572.2[电气工程—电器]