대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2004년도 하계학술대회 논문집 A
- /
- Pages.42-44
- /
- 2004
전압 불평형율을 이용한 분산전원의 고립운전 검출 기법
An Islanding Detection Method for Distributed Generations Using the Voltage Unbalance
- Jang S. I. (Seoul National University) ;
- Park J. K. (Seoul National University) ;
- Kim K. H. (Kangwon National University)
- 발행 : 2004.07.14
초록
This paper introduced and proposed the voltage unbalance of DC terminal output as new monitoring parameter for power islanding detection. This paper also presented a simple and novel detection algorithm, which effectively combines the detection results of the conventional parameter, voltage magnitude, and a newly proposed parameter. We tested the proposed method using several distribution network conditions including not only islanding operation conditions, but also non-islanding conditions of normal network load variations. The test results showed that the proposed parameters and algorithm are capable of correctly detecting the islanding operation not affected by variation of DG loading and also have a good selectivity for islanding conditions and non-islanding conditions.
키워드