Speed estimation using extended Kalman filter for PMSM

This paper describes simple speed estimation technique for permanent magnet synchronous motors based on extended kalman filter. Speed estimation is required for Sensorless vector control of motor. A system is designed to estimate the rotor speed according to the mathematic model. Simulation is done by using MATLAB, results show that the EKF-based control system, which is able to implement the speed sensorless vector control for PMSM, can preferably track the rotor speed.