Research on control algorithm of high voltage circuit breaker three phase permanent magnet brushless DC Motor

Abstract

Aiming at the high voltage circuit breaker three-phase permanent magnet brushless DC motor, this paper studies the motion characteristics of the motor operating mechanism under different control strategies. Considering the switching operation process of high voltage circuit breaker, we established the permanent magnet brushless DC motor operating mechanism motion simulation model of the control system. It was controlled by the digital double closed loop and the inner is current loop, where a PI controller is adopted. The outer ring is speed ring, which was controlled by two different control strategies, the traditional PID controller and single neuron PID controller. Through the simulation analysis of servo control system, the tracking control performance of the motor operating mechanism is obtained. The results show that the single neuron PID controller can achieve better tracking control of the contact speed, making it moving by the ideal motion characteristic curve. It is an ideal and effective control method.