一种分相无变压器混合变换器STATCOM及其电容电压平衡

The parallel hybrid converter-based static compensator (PHC-STATCOM) requires transformers and director switches (DSs) capable of enduring high voltage stress. Every DS is assembled with a series connection of IGBTs, which reduces reliability and increases the issue of unequal voltage distribution. This article proposes a new STATCOM, the “split phase transformer-less hybrid converter” (STL-HC), w...