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Experimental Verification of the Speed Performance of PMSM Using DS1104 dSPACE with Load Disturbance

Mamatha G, Rekha PS

A novel design implementation of Extended Kalman Filter (EKF) combined with state observer for a Permanent Magnet Synchr onous Motor (PMSM) is proposed. The precise speed estimation is achieved using kalman algorithm and the Linear Quadratic Regulator (LQR) technique is used to tune the PID controller parameters. The disturbance rejection is achieved using observer based PID controller and its error is retained and will act as immune to disturbance rejection. The proposed methodology combines the best features of EKF estimator and that of the observer based PID controller and greatly enhances the PMSM speed control performance compared to the case when an EKF and observer acting alone. The PMSM speed controller is implemented using MATLAB/SIMULINK and DS1104 dSPACE board. The experimental results for the speed response variations when the PMSM is subjected to the load disturbance are presented. The experimental results verify the effectiveness of the proposed method