Modeling of Equivalent Magnetic Circuit for PM Relays Based on 3-D Magnetic Field Simulation

摘要：

Reliability design for PM relays needs a great amount of calculation for attractive forces by magnetic circuit method. Equivalent circuit modeling of permanent magnet (PM) is the key to calculate the attractive forces precisely. Based on the dispersion curve of PM sections magnetic flux density (B) come from 3-D magnetic field simulation, this paper presents the equivalent circuit model of PM subsection. Then, we found the equivalent magnetic circuit model of some type PM relays magnetic system and calculate the attractive forces of PM relay. Furthermore, we compare the computing results with the simulation results of 3-D magnetic field and testing data. We conclude that the proposed equivalent magnetic circuit model based on the PM subsection model can improve the computing precision of attractive forces, and can serve the reliability design of relays.

关键词： Permanent magnet Relay Equivalent Magnetic Circuit Model Reliability

作者: Liang Huimin Cui Hao Ye Xuerong Zhai Guofu

作者单位: School of Electrical Engineering and Automation Harbin Institute of Technology, Harbin, 150001, China

会议类型: 国际会议

会议名称: 第三届电工产品可靠性与电接触国际会议(The 3rd International Conference on Reliability of Electrical Products and Electrical Contacts)

会议地点: 温州

会议语种:英文

页码: 119-123

在线出版日期: 2009-10-18（万方平台首次上网日期，不代表论文的发表时间）