基于相反矢量的移相载波空间矢量脉宽调制以扩展单相三电平NPC级联整流器直流侧电压平衡范围

A phase shift carrier space vector pulse width modulation scheme based on an opposite vector voltage balancing strategy is proposed to extend the balance region of dc-link capacitor voltages for a single-phase three-level neutral point clamped cascaded rectifier (3LNPC-CR). The internal-module and mutual-module 3LNPC-CR balancing strategies are simultaneously applied to improve the voltage balanci...