- 정상 성분 변화량을 이용한 송전선로 보호용 방향 계전 알고리즘
- ㆍ 저자명
- 이명수,유석구
- ㆍ 간행물명
- 전기학회논문지. The transactions of the Korean Institute of Electrical Engineers. A / A, 전력기술부문
- ㆍ 권/호정보
- 2003년|52권 4호|pp.226-233 (8 pages)
- ㆍ 발행정보
- 대한전기학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Directional elements are fundamental to protection scheme security and selectivity, performing such critical tasks as supervising distance elements and controlling overcurrent elements. But, conventional operating principles for directional detection based on negative or zero sequence quantify do not satisfy the requirements for improved sensitivity and fast operation under any fault conditions. In this paper, new algorithm for directional elements is proposed. The proposed algorithm use the positive-sequence superimposed voltages and currents in order to be used in all fault conditions. Also, because this algorithm uses a voltage compensation method. it can be well operated under strong source conditions.