Moving Average를 이용한 전압강하보상 알고리즘에 관한 연구

초록

This paper propose the control algorithm for improving the power quality through the voltage compensation when source voltage is dropped. The algorithm signified occurrence of voltage drop in source voltage of each phase storing source voltage for two cycles using the concept of moving average and using the source voltage of last half cycle. If there are voltage drops in the source voltages, series active power filter compensates the differences between reference waveform and source voltage waveform. Therefore, voltage drop is compensated. It proposed series active power filter of three phases three lines to apply to the proposed algorithm and the presented experiment results verified logicality and effectiveness of the proposed algorithm.