Abstract
In this paper, feedback linearization is used to control the speed of a surface mount Permanent Magnet Synchronous Motor (PMSM). An extended high-gain observer is also used to estimate both the speed of the motor and the disturbance present in the system to recover the performance of feedback linearization. The disturbance is assumed to be unknown, and time-varying but bounded. Stability of the output feedback system is shown. Finally, simulation and experimental results confirm stability, robustness, and performance of the system.
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