Modeling and Simulation of PMSM Control System Based on Matlab

Based on the mathematical model of the permanent-magnet synchronous-motor(PMSM), a novel method for modeling and simulation of PMSM system in Matlab had been proposed. In Matlab/Simulink, the independent functional blocks and such as PMSM block, vector controller block, hysteresis current controller block and speed controller, ect., had been modeled. By the organic combination of these blocks, the model of PMSM could be easily established. In the double loop of control system, a PI controller was adopted in the speed loop and a hysteresis current controller was adopted in the current loop. The reasonability and validity had been testified by the simulation results. The novel method offers a new platform for designing and debugging actual motors.