대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1993년도 하계학술대회 논문집 A
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- Pages.156-158
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- 1993
고저항 지락사고 검출을 위한 신호처리 방법에 관한 연구
A Study On The Methods Of Signal Processing For High Impedance Fault Detection
- 이성환 (연세대학교 전기공학과) ;
-
우천희
(현대 중전기(주) 기술연구소)
;
- 강신준 (연세대학교 전기공학과) ;
- 우광방 (연세대학교 전기공학과) ;
- 이진 (현대 중전기(주) 기술연구소) ;
- 김상철 (현대 중전기(주) 기술연구소)
- Lee, Sung-Hwan (Dep. of Electrical Eng. Yonsei Univ.) ;
-
Woo, Chun-Hee
(Hyndai Electrical Engineering Co, LTD R&D Center)
;
- Kang, Sin-Jun (Dep. of Electrical Eng. Yonsei Univ.) ;
- Woo, Kwang-Bang (Dep. of Electrical Eng. Yonsei Univ.) ;
- Lee, Jin (Hyndai Electrical Engineering Co, LTD R&D Center) ;
- Kim, Sang-Chul (Hyndai Electrical Engineering Co, LTD R&D Center)
- 발행 : 1993.07.18
초록
This paper presents several techniques of power spectrum estimation for high impedance fault detection. High impedance faults are those faults with current too low to be reliably cleared by conventional overcurrent protection. So power spectrum estimation is required. AR and MA techniques require optimal order for good performance of power spectrum estimation because these techniques are unstable for order selection. ARMA and Extended techniches are stable for order selection and have very sharp response. So ARMA and Extended Prony techniques are suitable for our purpose.
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