用于三电平变换器中点电压平衡的不连续双信号PWM

Neutral-point voltage (NPV) imbalance presents a significant challenge in three-level converters, especially under conditions of high modulation index (MI) and low power factor (PF). This article proposes a novel discontinuous dual-signal pulsewidth modulation (DDSPWM), which can effectively balance the NPV at high MI and the full range of PF. It is implemented by injecting a simple zero-sequence ...