A Fractional Order Control Method of Electromechanical Actuator Based on PSO-SA Optimization

Abstract

In this paper, to improve the dynamic performance of the electromechanical actuator, a fractional-order PID controller is proposed and its parameters is optimized by particle swarm optimization-simulated annealing algorithm. Firstly, based on dynamic model of electromechanical actuator servo system, a fractional order controller is designed. Then, using particle swarm optimization-simulated annealing algorithm, five parameters in the proposed fractional-order PID controller is tuned. The performance comparisons of the servo system under the proposed fractional-order PID and conventional integral-order PID controllers are given. The simulation results show that the proposed fractional-order PID controller can greatly improve the dynamic performance of the electromechanical actuator control system.