Simulation of IPMSM Sensorless Drive and Identification of Permanent Magnet Rotor Flux By Extended Kalman Filter

Abstract: Interior permanent magnet synchronous motor (IPMSM) has buried magnets in the rotor core possesses mechanically robust construction, can also be used in high speed applications. This motor has high performance because of neglected rotor copper losses. In this paper the drive is tested for speeds adjusting during its operation. A rotor flux oriented vector control with model reference adaptive system (MRAS) based rotor position/speed estimation is implemented as the basic control strategy for IPMSM drive. An identification scheme based on Extended Kalman Filter for the permanent magnet flux of IPMSM is proposed. The simulation results of MATLAB/SIMULINK model shows very good dynamic response. Hence this drive can be used in high speed as well as low speed applications.

Keywords: Extended Kalman filter (EKF), Model reference adaptive system (MRAS), interior permanent magnet synchronous motor (IPMSM), Vector Control