Abstract
The advantage and disadvantage of the common control methods for permanent magnet synchronous motor (PMSM) are analyzed. Combined the sine pulse-width modulation (SPWM) and field oriented control (FOC) algorithm, a novel control method of the space vector pulse-width modulation with single closed loop is presented. In MATLAB-Simulink, based on the mathematic model of PMSM, used the S-function and the algorithm of single-loop space vector pulse-width modulation (SL-SVPWM) a servo-model of PMSM is established. Via experiment, compared SPWM method to SL-SVPWM method, the different results of phase current waveform of PMSM are drawn; and the dynamic response behavior of the motor which driven by the method of SL-SVPWM is analyzed. The results of the simulation and experiment verified that the SL-SVPWM method in this paper simplified the control system of PMSM, and this control method has better control stability.
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