NPC逆变器驱动双三相交流电机的中点电压平衡策略

In this article, the mechanism of neutral-point potential oscillations of neutral-point-clamped (NPC) three-level inverter fed dual three-phase ac motors is described. In a dual three-phase ac motor drive system, the three-level NPC inverter can be controlled as one six-phase system or two separate conventional three-phase systems. Therefore, this article extends the traditional control strategy, ...