LOW VOLTAGE APPARATUS ›› 2022, Vol. 0 ›› Issue (6): 24-31.doi: 10.16628/j.cnki.2095-8188.2022.06.006

• Research & Analysis • Previous Articles     Next Articles

Closed Loop Feedback Control Strategy of AC Contactor Current Slope Based on Multi Condition Judgment

YANG Cheng, LIU Xiangjun   

  1. College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China
  • Received:2022-03-24 Online:2022-06-30 Published:2022-07-21

Abstract:

Aiming at the problem of sharp contact bounce in the starting process of AC contactor,by adopting the two-stage step current starting mode,the current slope closed-loop feedback control strategy based on multi condition judgment is proposed.Through the multi software joint simulation model and orthogonal test,the better starting current is calculated,and the feasibility of the proposed control strategy is verified by simulation.The control system is designed to verify the control strategy.The results show that the control strategy can effectively reduce the contact bounce and has the characteristics of high control reliability.

Key words: AC contactor, current slope, closed loop feedback control, multi condition judgment

CLC Number: