This paper presents the speed control of a Permanent Magnet Synchronous Motor (PMSM) using incremental encoder and disturbance observer. Rotor position information and speed information are important when driving the PMSM. Generally, The encoder is us...
This paper presents the speed control of a Permanent Magnet Synchronous Motor (PMSM) using incremental encoder and disturbance observer. Rotor position information and speed information are important when driving the PMSM. Generally, The encoder is used to obtain rotor information. However, if the motor shaft and encoder combination is twisted or deviated caused a ripple in the measured speed. Speed ripple can adversely affect the speed control of a permanent magnet synchronous motor. Disturbance observer can improve the speed ripple and speed overshoot. This observer is used for the rotor in order to reduce the error of the speed control. The performance of the proposed control algorithm is verified through the experiment.