中文摘要：

在研究动态电压恢复器（DVR）的电网电压前馈控制加负载电压与电容电流双闭环反馈控制相结合的复合控制策略基础上,分析了反馈控制中传统比例积分（PI）控制的不足。经过理论分析,提出了基于模糊PI控制与重复控制相结合的控制方法。仿真结果表明,所提控制方法使DVR有良好的动、静态性能和抗干扰能力。

英文摘要：

Under the study of the dynamic voltage restorer （DVR） control strategy that combines grid voltage feed-forward control with the load voltage and capacitor current double closed-loop feedback control, the traditional proportion integration （PI） controller in feedback control was analyzed, and a novel control strategy combining adaptive fuzzy-PI control with repetitive control was proposed. The theoretical analysis and the simulation results show that the proposed control strategy has excellent dynamic and static performance as well as good anti-jamming capability.