Simulation research on optimization of permanent magnet synchronous motor sensorless vector control based on MRAS

In view of the sensorless control technology being of great significance for solving some issues of the permanent magnet synchronous motor control system such as high cost, poor reliability and maintenance difficulties, this paper conducts an in-depth simulation research on the optimization of the MRAS-based permanent magnet synchronous motor sensorless vector control. Firstly analyze the mathematical model of the permanent magnet synchronous motor, vector control theory and the basic principle of MRAS, then use MATLAB / Simulink platform to establish the optimization simulation model of the MRAS-based permanent magnet synchronous motor sensorless vector control on the basis of the theoretical system optimization based on MRAS, finally make simulation experiments and analyze overall system performances. The simulation results show that the optimization scheme can significantly improve the system performances, though it has some drawbacks at the same time.