A novel multiplexed control strategy of Dynamic Voltage Restorer

Dynamic Voltage Restorer (DVR) is a practicable and economical way to ensure the energy quality of power system. Under the study of the control strategy that combine 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 is analyzed, and a novel control strategy combining adaptive fuzzy-PI control with repetitive control is 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.