三电平NPC多相逆变器中点电压的四自由度混合控制策略

The three-level neutral-point-clamped (NPC) multiphase inverter, which combines three-level converter technology with multiphase motor technology, is the main direction to improve the system capacity at present. To control the neutral-point (NP) voltage, this article analyzes the degrees of freedom (DoF) of NP voltage control of a three-level NPC multiphase inverter, which includes zero-sequence v...