Abstract

Owing to its advantages of energy saving and emission reduction, the high-power permanent magnet synchronous motor (PMSM) has been widely used in the field of rail transit. Based on the operation characteristics of the PMSM, the control strategy is designed in the full-speed range. Based on the rotor magnetic field orientation model of the PMSM, a control algorithm based on the maximum torque/current ratio is proposed in the rated speed range, and a power angle control algorithm is employed above the rated speed. The correctness and effectiveness of the proposed control strategy of the PMSM are verified on HIGALE.

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