계통연계형 태양광 발전 시스템의 부하 모효전력 보상이 적용된 단독운전 인지법

Abstract

In this paper, we present an active anti-islanding method with a load monitoring system using reactive power control. The proposed method, which is based on reactive power control, has fewer harmonics components than those in conventional methods, and it can minimize the reactive power component of the grid because it compensates the reactive power component with the load monitoring. The proposed quick islanding detection method was confirmed from the experimental results with an inverter for a 3㎾ photovoltaic system.