Simplified Model Predicted Current Control Method for speed control of Non-Silent Permanent Magnet Synchronous Motors

摘要

With the advancement in semiconductor technology, the speed control of ac motor drive becomes easy. The development of the microprocessor has encouraged the research of the most efficient and economical speed control algorithms. A model predicted current control method is designed and used the discrete-time model of output state variable of the motor drive to predict the future value of output state variable across all the voltage vector generated by voltage source inverter. The squared cost function method is utilized to evaluate the current error. As compared to the conventional cascaded control method, the Model Predicted Control has better performance. The Simulation model is designed in Matlab/Simulink 2018b, which shows the excellent dynamic and steady-state performance of the control algorithm. The simulation results are demonstrated to verify the proposed method.