Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.07b
- /
- Pages.1684-1686
- /
- 2005
Active Frequency Drift Positive Feedback Method for Anti-islanding
단독운전검출을 위한 능동적 주파수 변화 정궤환기법
-
So, J.H.
(Korea Institute Energy Research)
;
- Jung, Y.S. (Korea Institute Energy Research) ;
-
Yu, G.J.
(Korea Institute Energy Research)
;
-
Yu, B.G.
(Korea Institute Energy Research)
;
- Lee, K.O. (Korea Institute Energy Research) ;
-
Choi, J.Y.
(Kwangwoon Univ)
-
소정훈
(한국에너지기술연구원)
;
- 정영석 (한국에너지기술연구원) ;
-
유권종
(한국에너지기술연구원)
;
-
유병규
(한국에너지기술연구원)
;
- 이기옥 (한국에너지기술연구원) ;
-
최주엽
(광운대학교 전기공학과)
- Published : 2005.07.18
Abstract
As photovoltaic(PV) power generation systems become more common, it will be necessary to investigate islanding detection method for PV systems. Islanding of PV systems can cause a variety of problems and must be prevented. However, if the real and reactive power of load and PV system are closely matched, islanding detection by passive methods becomes difficult. Also, most active methods lose effectiveness when there are several PV systems feeding the same island. The active frequency drift positive feedback method(AFDPF) enables islanding detection by forcing the frequency of the voltage in the island to drift up or down. In this paper the research for the minimum value of chopping fraction gain applied digital phase-locked-loop(DPLL) to AFDPF considering output power quality and islanding prevention performance are performed by simulation and experiment in IEEE Std 929-2000 islanding test.
Keywords