Yong-Gyu Song, “계통연계형 인버터의 동기 좌표계를 이용한 단독운전 검출 알고리즘,” 아주대학교 공학석사 학위 논문, 2015. > Paper

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Thesis Yong-Gyu Song, “계통연계형 인버터의 동기 좌표계를 이용한 단독운전 검출 알고리즘,” 아주대학교 공학석사 학위 논문, 2015.

2015

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In the grid-connected system, anti-islanding method has been an important technical topic. Therefore, various anti-islanding methods

for detecting and preventing islanding phenomenon have been proposed. Among them, an AFD(Active Frequency Drift) technique

is commonly used as anti-islanding detection method. However, it has the disadvantage that the current THD and detection time

are increased according to the gain of the AFD algorithm and it reduces the power quality. This paper proposed a novel

anti-islanding method to complement the shortcomings of AFD algorithms. By using proposed method, change of the gain does not

affect the power quality and detection time is faster than general AFD method. In addition, it is easy to implement algorithm because

of the simple structure of the controller. The effectiveness of the proposed method was demonstrated by the simulation and

experiment results.

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