Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1996.07b
- /
- Pages.677-679
- /
- 1996
A Method to Improve the Speed of a Distance Relay Using Artificial Neural Networks
신경회로망을 이용한 거리 계전기의 속도 개선 방법
- Cho, K.R. (Hyosung Heavy Industry) ;
-
Kang, Y.C.
(Seoul National University)
;
- Kim, S.S. (Seoul National University) ;
-
Nam, S.R.
(Seoul National University)
;
-
Park, J.K.
(Seoul National University)
;
-
Kang, S.H.
(Myong-Ji University)
;
-
Kim, K.H.
(Kangwon National University)
- 조경래 (효성 중공업) ;
-
강용철
(서울대학교 전기공학부)
;
- 깅성수 (서울대학교 전기공학부) ;
-
남순열
(서울대학교 전기공학부)
;
-
박종근
(서울대학교 전기공학부)
;
-
강상희
(명지대학교 전기공학부)
;
-
김광호
(강원대학교 전기공학과)
- Published : 1996.07.22
Abstract
This paper describes a method to improve the speed of a distance relay based on a differential equation of transmission lines using feedforward artificial neural networks (ANN) on an EHV system. For the impedance calculation an integration approximation to the differential equation is used and then an ANN is trained with the impedance convergence characteristic. The ANN predicts the fault distance with some calculated resistances and reactances before they reach trip zone. Thus, the proposed method can improve the speed of distance relays, significantly if a high sampling rate such as 48 samples per cycle is employed.
Keywords