一种在低频调制指数下维持直流侧电容电压平衡的多电平多相二极管钳位及有源钳位DC-AC变换器调制策略

This paper proposes a modulation strategy for multilevel multiphase diode-clamped dc-ac converters (also applicable to other functionally equivalent topologies) able to keep the dc-link capacitor voltages balanced under passive front ends, low frequency modulation indices (i.e., low number of switching transitions per fundamental cycle), any value of the amplitude modulation index, and any ac-side...