Browse > Article
http://dx.doi.org/10.7782/JKSR.2017.20.5.595

Study on the Railway Fault Locator Impedance Prediction Method using Field Synchronized Power Measured Data  

Jeon, Yong-Joo (Department of Electrical Engineering, Soongsil University)
Kim, Jae-chul (Department of Electrical Engineering, Soongsil University)
Publication Information
Journal of the Korean Society for Railway / v.20, no.5, 2017 , pp. 595-601 More about this Journal
Abstract
Due to the electrification of railways, fault at the traction line is increasing year by year. So importance of the fault locator is growing higher. Nevertheless at the field traction line, it is difficult to locate accurate fault point due to various conditions. In this paper railway feeding system current loop equation was simplified and generalized though measured data. And substation, train power data were measured under synchronized condition. Finally catenary impedance was predicted through generalized equation. Also simulation model was designed to figure out the effect of load current for train at same location. Train current was changed from min to max range and catenary impedance was compared at same location. Finally, power measurement was performed in the field at train and substation simultaneously and catenary system impedance was predicted and calculated. Through this method catenary impedance can be measured more easily and continuously compared to the past method.
Keywords
Fault locator; Synchronized power measurement data; Fault location error; Catenary system Impedance estimation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 M. K. Kim, M. S. Kim (2010) A study on the impedance calculation by using equivalent model in catenary system, International Journal of Railway, 3(2), pp.46-53.
2 D. H. Kim, M. H. Shin (2009) A study on the impedance calculation by using equivalent model in catenary system, Proceedings of the Autumn Conference for Railway, Jeju, pp.1190-1200.
3 C. H. Kim, S. R. Kim, S. I. Kwon, G. J. Cho, et al. (2016) Calculation method of modification factors for fault location algorithm using boosting current of operating electric train in AT feeding system, The Korean Institute of Electrical Engineers, 65(3), pp.504-510.   DOI
4 H. S. Jung (2013) A study on real time catenary impedance estimation technique using the synchronized measuring data between substation and train, The Korean Institute of Electrical Engineers, 62(10), pp.1458-1464.   DOI
5 M. H. Min, T. P. An, S. I. Kwon, H. S. Jung, et al. (2017) A study on estimation technique for fault location using quadratic interpolation in a parallel feeding AC traction system, The Korean Institute of Electrical Engineers, 66(3), pp.599-604.   DOI
6 Korea Network Authority (2016) Intelligent railway protection and fault analysis system.
7 Korea railroad corporation Electrification department (2017) 2016 Electrification department general information data, KORAIL.
8 Y. J. Jeon (2015) Analyzation report about fault locator, Korea railroad corporation Electrification department.
9 Korea Rail Network Authority (2015) Korea Railroad Code KRE2030, Substation facility configuration and plan.
10 S. H. Chang, J.R. Kim, J. S. Hong, K.-H. Oh, J.-H. Kim (2002) A Study on electric circuit modeling and analysis for AC railway system, Journal of the Korean Society for Railway, 3(4), pp. 219-228.