Simulation analysis and design of a high speed mechanical contact base on electro-magnetic repulsion mechanism

Author

Jian, Zhuangxian ; Zhuang, Jinwu ; Wang, Chen ; Wu, Jing ; Liu, Luhui

Author_Institution

Dept. of Electr. Eng., Naval Univ. of Eng., Wuhan, China

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

5

Abstract

Effects of different parameters on the electromagnetic repulsion mechanism are analyzed in order to design an effective high speed contact mechanism. The mathematical model of the electro-magnetic repulsion mechanism is established and a finite elements simulation software is used to calculate the repulsion force of the electro-magnetic repulsion mechanism. Simulation results show the effects of different parameters on the electro-magnetic repulsion mechanism. A high speed contact mechanism is designed for DC320V/3kA hybrid switch. Experimental results show that the mechanism is able to separate within 220us, and it takes 7.6ms for 20mm contact gap. It meets the demand of hybrid switch for high reaction speed and high motion speed.

Keywords

air gaps; electrical contacts; electromagnetic forces; finite element analysis; mechanical contact; power semiconductor switches; contact gap; electromagnetic repulsion force mechanism; finite elements simulation; hybrid switch; mathematical model; mechanical contact base; Analytical models; Coils; Contacts; Copper; Force; Inductors; Mathematical model;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6073650

Filename

6073650