ROGI-PLL and Quasi-PI-Resonant Based Control Strategy for Unified Power Quality Controller

In the background of the power quality issues in the low-voltage distribution network, this paper makes a comprehensive and in-depth study on the three-phase three-wire unified power quality controller (UPQC) based on quasi-PI-resonant(quasi-PIR) controller and ROGI-PLL to improve the quality of power supply at the user’s side. Considering the typical characteristics of both harmonic current and h...