Dynamic Voltage Restorers using Improved Voltage Sag and Phase Detection Algorithm

개선된 전압 Sag 및 위상 검출기법에 의한 동적전압보상시스템

The recent growth in the use of impactive and nonlinear loads, electronic devices sensitive to power quality has caused many power quality problems. Dynamic voltage restorers(DVR) are known as the best effective and economic means to compensate for power quality problems(especially, voltage sag and swell). In this paper, we addresses the detecting algorithms of an voltage sag and phase for operating DVR. Experimental results are included to illustrate the efficacy of the proposed algorithm.