Research of uninterrupted dynamic voltage restorer based on Delta conversion technology

The main circuit,control methods and related technologies of Delta inverter were introduced.Based on the research of Delta inverter,the system configuration of uninterruptible dynamic voltage restorer(UDVR) was presented,and its control strategy was analyzed in detail.Simulation results show that the UDVR could provide the loads a pure and standard sine voltage wave and satisfy the improved demand of loads to power quality.