wang fazhan Likes:

Affiliation of Author(s):

机电工程学院

Journal:

测试科学与仪器(英文版)

Key Words:

electrical switch ; contact bounce ; two-degree-of-freedom motion differential equation ; algorithm optimizati on;high-speed photo graphy

Abstract:

In order to solve the problem of vibration bounce caused by the contact between moving and stationary contactsinthe process of switching on, two-degre-of-freedom mot on diferential equatron of the contact system is first established.GA(genetic agonithm) is used to optimize the pull in process of AC contactor The whole process of contact bounce wasobserved and analyzed by high-speed photography exp eriment. The theory and exp erimental results ac e very similar. The ironcore has collided before the contact has separated, whi ch further aggravates the contact bounce., When the iron core bouncescallided again, the bounce of the contact is not affected.During the operation of the contactor, the movement of the movingiron care will cause slight vibration of the syst em. The contact bounce time and the maximum amplitude are reduced. Theresearch results provide a theoretical basis for further control and reduction of contact bounce.

First Author:

wang fazhan

Indexed by:

Journal paper

Correspondence Author:

赵明基,李亚峰,区达铨

Volume:

Vol. 12 2021

ISSN No.:

1674-8042

Translation or Not:

no

CN No.:

14-1357/TH

Date of Publication:

2020-11-03