Simulation of Permanent Magnet Synchronous Motor Sensorless Vector Control

For the purpose of realizing the sensorless vector control of PMSM,a speed and position estimation method was proposed based on the stator flux,targeted on the most common vector control method,i d= 0 control algorithm. The basic principles of the sensorless control of PMSM technology was discussed. A PMSM sensorless vector control simulation system was established. Simulation results show that speed sensorless vector control system has good dynamic and static performance and robustness characteristics and the sensorless control algorithm is simple and easy to implement.