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This paper presents the initial rotor position estimation and the sensorless control for IPM synchronous motor. In sensorless drive, it is important to know the exact information of the initial rotor position. The initial position estimation method is based on the peak current changed according to the rotor position owing to the saliency. A speed sensorless control based on an instantaneous reactive...
In this paper, a new speed sensorless control based on a fuzzy compensator is proposed for the interior permanent magnet synchronous motor (IPMSM) drives. The conventional proportional plus integrate (PI) control are very sensitive to a step change of the command speed, parameter variations and load disturbance. To settle these problems of the PI control, the estimated speeds are compensated by using...
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