无变压器背靠背级联H桥变换器的统一二维SVPWM与相位差边界分析

Conventional space vector pulsewidth modulation (SVPWM) schemes for back-to-back cascaded H-bridge converters suffer from problems such as limited available sectors and the risk of capacitor short-circuit faults under phase difference conditions. To address these issues, a two-dimensional (2-D) SVPWM strategy based on bilateral voltage balancing is proposed in this article. The strategy optimizes ...