Comparative Analysis of Model Predictive and Hysteresis Current Control for PMSM drive Application

The performance analysis of two current control techniques for the control of permanent magnet synchronous motor (PMSM) drive is investigated in this paper. Constant torque angle control strategy is employed for the outer speed control loop to obtain maximum torque per unit current. In enhancing the drive system dynamics, the current control loop is employed which offer significant advantages for voltage source inverter fed motors. A proper comparison is made between the hysteresis current control and model predictive current control for the best selection of controller to the PMSM. To verify the robustness of implemented HCC and MPCC, different parameters such as amount of ripple present in speed, torque, current are considered. The dynamic behaviour of the motor is analysed using MATLAB/ Simulink. The simulation results shows that MPCC produces fast and better dynamic performance in aspects such as variable speed and variable load operations with less ripples present in it.