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This paper proposes a simple and effective method to reduce torque ripples for the torque predictive control (TPC) of permanent-magnet synchronous motors (PMSMs). The conventional TPC analyzes the relationship among the electrical torque, stator flux, and stator voltage using the magnitude of the stator voltage vector of PMSMs to obtain the angle of the reference voltage vector and accurately control...
In this paper, a torque ripple reduction method is presented for PMSM controlled by the torque predictive control. The proposed method, which predicts the duty ratio of the active stator voltage applied, makes it possible to relatively reduce the torque ripple in the steady state as well as to remain the good dynamic response in the transient state. With the duty ratio prediction method, the magnitude...
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