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Simplified Model Reference Adaptive Method for Sensorless Vector Control of PMSM

Sensorless control of PMSM is becoming increasingly important among the whole control system. This paper introduced Integral Separation Technology to the PI regulators to decrease overshoot or oscillation of the system. In addition, on the basis of the mathematical model of PMSM, Vector Control System for PMSM is got. Then a simplified model reference adaptive method using the zero excitation current control to modify the adaptive rate is given. At last, the corresponding waveforms are presented and the reasonability and validity has been proved by the simulation.