1회선 분기점을 갖는 병행 2회선 송전선로 고장점 표정 알고리즘 = Fault Location Algorithm for Parallel Transmission Line with a Teed Circuit

다국어 초록 (Multilingual Abstract)

This paper presents a fault location algorithm of a single phase-to-ground fault on a parallel transmission line which contains a teed circuit. The method uses only the local end voltage and current signals. Zero sequence currents of other lines are calculated by distribution factors. Instead of zero sequence current, negative sequence current is used to remove the effect of load current and to calculate the voltage of a fault resistance. There are three distance equations in this algorithm. One of them is to calculate inner part fault location without teed circuit and another equation is for outer part fault location without teed circuit and the other is to calculate inner part fault location with teed circuit. Correct fault distance is selected by the condition of each solution.
Extensive simulation studies using EMTP have verified that the proposed algorithm can calculate an accurate fault distance in spite of effects of various error sources.

목차 (Table of Contents)

• 제1장 서론
• 1.1절 연구의 필요성
• 1.2절 연구의 개요
• 제2장 본론
• 2.1절 분기되지 않은 선로의 분기점 안쪽 고장시
• 2.2절 분기된 선로의 분기점 안쪽 고장시
• 2.3절 해의 존재조건
• 2.4절 사례연구
• 제3장 결론