Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2006.07a
- /
- Pages.240-241
- /
- 2006
Islanding detection method for distributed generations using the change of the voltage unbalance and the output power of DG
전압 불평형과 발전기 출력 변동을 이용한 분산전원의 단독운전 판단 기법
-
Kang, Yong-Cheol
(Chonbuk National University)
;
- Jang, Sung-Il (Hankook IED Eng.) ;
- Lee, Ji-Hoon (Chonbuk National University) ;
- Cha, Sun-Hee (Chonbuk National University) ;
- Kim, Yeon-Hee (Chonbuk National University) ;
-
Lee, Byung-Eun
(Chonbuk National University)
;
- Kim, Yong-Guen (Hankook IED Eng.)
-
강용철
(전북대학교)
;
- 장성일 ((주)한국 아이디 이엔지) ;
- 이지훈 (전북대학교) ;
- 차선희 (전북대학교) ;
- 김연희 (전북대학교) ;
-
이병은
(전북대학교)
;
- 김용균 ((주)한국 아이디 이엔지)
- Published : 2006.07.12
Abstract
Islanding operations of DG usually occur when power supply from the main utility is interrupted due to several reasons but the DG keeps supplying power into the distribution networks. These kinds of islanding conditions cause negative impacts on protection, operation, and management of distribution systems. Therefore, it is necessary to effectively detect the islanding conditions and swiftly disconnect DG from distribution network. This paper proposes the islanding detection algorithm for DG using the change of the voltage unbalance and the output power of DG. The proposed method effectively combines the conventional parameters for detecting the islanding conditions. The proposed methods were verified using the radial distribution network of IEEE 34 bus.
Keywords