Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1990.11a
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- Pages.202-205
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- 1990
Travelling Wave Technique for Close-Up Fault Protection
진행파를 이용한 근접사고 거리계전 방식
- Kim, Gon-Wook (Dept. of Electrical Eng. SNU) ;
- Kang, Sang-Hee (Dept. of Electrical Eng. SNU) ;
- Park, Jong-Keun (Dept. of Electrical Eng. SNU) ;
- Kim, Il-Dong (Dept. of Contr. And Instr. Eng. SNU) ;
- Yun, Man-Cheol (Dept. of Contr. And Instr. Eng. SNU) ;
- Kwon, Wook-Hyun (KEPCO Research Center)
- 김곤욱 (서울 대학교 전기공학과) ;
- 강상희 (서울 대학교 전기공학과) ;
- 박종근 (서울 대학교 전기공학과) ;
- 김일동 (한전 기술연구원) ;
- 윤만철 (한전 기술연구원) ;
- 권욱현 (서울 대학교 제어계측 공학과)
- Published : 1990.11.17
Abstract
In this paper the development of new technique based on the travelling-wave information contained in the post fault voltage and current signals has been presented. To develop fault location methods which can cope with close-up fault and zero-inception angle problems, magnitude of the backward wave has been used. The technique developed can be incorporated in a generalized algorithm for application as a high speed distance scheme. In this way some of the problems and limitations associated with travelling wave schemes are avoided. Verification of the relay operating principles is presented through digital computer numerical simulation using an electromagnetic transient program(EMTP) in conjunction with simulation of the proposed algorithms.
Keywords