Space Vector Control for Dual Y Shift 30 Degree Six-Phase Permanent-magnet Synchronous Motor

To the problem of excessive harmonic in the dual Y shift 30 degree six phase permanent-magnet synchronous motor(PMSM)with ordinary sinusoidal pulsewidth modulation(SPWM)technology.The mathematical model of PMSM is established to effectively analyze the motor harmonic currents.Making use of voltage vector space,the six-dimensional PMSM model is decoupled in three planes plumb each other via conversion of canonical base to harmonic wave base.Two space vector pulsewidth modulation(SVPWM)techniques are proposed,and the selection and calculating methods of voltage vector in both techniques are illustrated in details respectively.A 7.5KW dual Y shift 30 degree PMSM control system is set up based on a fixed-point TMS320F2812 digital signal processor.Experimental results show the effectiveness and feasibility of the proposed method.