星型级联H桥STATCOM补偿电网电压不平衡能力的研究

For the grid voltage unbalance issue, in this article, the scheme of using star-connected cascaded H-bridge static synchronous compensator (CHB-STATCOM) to suppress the unbalanced voltage at the point of common coupling (PCC) is introduced. However, the capability of star-connected CHB-STATCOM to compensate the unbalanced voltage at the PCC is limited for a certain dc-link voltage. When exceeding ...