考虑零序电流抑制的低开关频率开绕组永磁同步电机直接转矩控制改进策略

This article proposes an improved direct torque control strategy for open-winding permanent magnet synchronous motor (OW-PMSM) with common dc bus for zero-sequence current (ZSC) suppression. The proposed strategy builds a novel voltage vectors (VVs) look-up table, which keeps the simple control structure of the conventional DTC (C-DTC) and effectively suppresses the ZSC. In each control period, tw...