电磁铁在冲击电流作用下的动态特性仿真计算  

Simulation Calculation of Dynamic Characteristics of Electromagnet by Action of Impulse Current

作　　者：周英姿[1] 许文良[1] 

机构地区：[1]上海电器科学研究所(集团)有限公司,上海200063

出　　处：《低压电器》2013年第4期5-8,13,共5页Low Voltage Apparatus

基　　金：上海市科学技术委员会资助项目(11QB1401800)

摘　　要：在Ansys电磁场静态计算的基础上,利用APDL语言进行了二次开发程序的编写,用于求解电磁铁运动过程中的微分方程组。对断路器电磁铁在8/20μs冲击电流作用下的整个动作过程进行仿真计算,得到电磁铁整个动作过程参数变化的情况,进而得到能使断路器电磁铁动作的8/20μs冲击电流的最小数值。通过电磁铁在冲击电流下的动作试验,验证了仿真方法和仿真结果的正确性。Abstract： Based on the static calculation of Ansys electromagnetic field, the second developed program was compiled by APDL language to solve the differential equations in electromagnet moving process. The whole moving process of the magnet in circuit breaker by the action of 8/20 μs impulse current was simulated by the technology. The parameter changes were obtained, and the minimum of 8/20 μs impulse current which could move the magnet was obtained. The test verifies the correctness of the simulative method and results.

关 键 词：电磁铁 冲击电流 动态仿真 动作特性 

分 类 号：TM574[电气工程—电器]