【摘要】 本文提出一种改进的基于电源电压矢量的补偿电流检测方法,该方法在电网电压不平衡条件下能实现负载电流中的无功、谐波和负序分量的综合检测,仿真研究表明检测效果有明显改善。证明了本文所提检测方法的正确性和有效性。更多还原

【Abstract】 The control methods and operation characteristics are researched in this paper.The effects of output voltage of D-STATCOM caused by unbalance grid voltage are analyzed through switching function and sequence network methods.The performance of output voltage of D-STATCOM is improved by modified switching function and the over current problem are resolved by negative sequence feed-forward control strategy.The correction and feasibility are proved by simulation results.更多还原