Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2003.07a
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- Pages.323-325
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- 2003
A Current Differential Relaying Algorithm for Transmission Lines Using an Advanced Compensation Algorithm of CTs
보상알고리즘을 적용한 송전선 보호용 전류차동 알고리즘
- Kang, Y.C. (Chonbuk National University, NPT Center) ;
- Lim, U.J. (Chonbuk National University, NPT Center) ;
- Choi, J.W. (Chonbuk National University, NPT Center) ;
- Jin, S.Y. (Chonbuk National University, NPT Center) ;
- Cho, H.Y. (Chonbuk National University, NPT Center)
- 강용철 (전북대학교 전자정보공학부, 차세대전력기술연구센터) ;
- 임의재 (전북대학교 전자정보공학부, 차세대전력기술연구센터) ;
- 최재원 (전북대학교 전자정보공학부, 차세대전력기술연구센터) ;
- 진선용 (전북대학교 전자정보공학부, 차세대전력기술연구센터) ;
- 조희영 (전북대학교 전자정보공학부, 차세대전력기술연구센터)
- Published : 2003.07.21
Abstract
A current differential relay may maloperate for external faults with CT saturation and requires an additional method to cope with the problem. This paper proposes a current differential relaying algorithm for transmission line protection using an advanced compensation algorithm of the secondary current of CTs. The compensation algorithm is unaffected by a remanent flux. The proposed algorithm does not need an additional method for CT saturation and thus can achieve high stability for an external fault.
Keywords