Speed control of sensorless PMSM drive using adaptive current control prediction technique.

A sensorless speed control technique for Permanent Magnet Synchronous Motor (PMSM) drive using flux observer Adaptive Current Control Prediction (ACCP) method is presented in this paper. The conventional Predictive Current Control (PCC) method depends on the stator resistance of PMSM, which will be created a problem in that it varies with temperature. A discrete stator resistance estimation method is proposed in this paper to enhance the performance of the drive. The major advantages of the proposed method are reduced fluctuations in the flux, smooth starting, and robust operation against a load of a PMSM drive. The superiority of the proposed sensorless method cannot only perform in MATLAB/Simulink but experimentally validated under various operating conditions at steady-state. [ABSTRACT FROM AUTHOR]