Research on PMSM Control System with LC Filter

Abstract

Adding an LC filter on the inverter side can filter out the switching voltage harmonics, so that the output voltage is approximately sinusoidal. In the permanent magnet synchronous motor control system, the effect of speed control determines to a large extent the static stability of the system and the effect of motor speed and torque output. In order to make the speed control system meet the strict performance requirements, a fractional order PID controller is used in this paper, and a fractional order model of the PMSM control system is established. And through the simulation analysis of the PMSM starting process and the operation of the drag step load. On the premise of ensuring the stability of the system, the system adopting the FO-PID controller has better transient performance and control effect than the system adopting the integer order PID controller.