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http://dx.doi.org/10.7782/JKSR.2011.14.5.404

A Study on Fault Location Estimation Technique Using the distribution Ratio of Catenary Current in AC Feeding System  

Jung, Ho-Sung (한국철도기술연구원 광역도시철도연구본부)
Park, Young (한국철도기술연구원 고속철도인터페이스연구실)
Kim, Hyeng-Chul (한국철도기술연구원 광역도시철도연구본부)
Min, Myung-Hwan (성균관대학교 전기전자공학과)
Shin, Myong-Chul (성균관대학교 전기전자공학과)
Publication Information
Journal of the Korean Society for Railway / v.14, no.5, 2011 , pp. 404-410 More about this Journal
Abstract
In AC feeding system, the fault location is calculated by using ratio of current absorbed in the neutral point of AT(Automatic Transformer) or by measuring reactance. In this way, however, an estimation error can be happened due to the many reasons. In addition, for measuring currents in the neutral point of AT, other measuring devices and communication equipments are additionally required. In order to solve the disadvantages, this paper suggests a novel technique using the distribution ratio of catenary current. The proposed technique uses existing protective relays and measures catenary current. With the measured data, we can calculate the distribution ratio of catenary current and determine fault location. Through the simulated results, we derived the correlation between current ratio and fault location. Using this technique, additional equipments and expenses can be reduced. Besides, fault location can be determined more correctly.
Keywords
fault location estimation; fault detection; AC feeding system; the distribution ratio of catenary current;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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