A New Fault Location Method for 10 KV Distribution Lines with Branches

Abstract:

By using the advantages of C-type of traveling wave fault location method in distance measuring and the pattern recognition function of support vector machines (SVM),a new fault location method is presented.The first step of the method is determining the fault distance by C-type of traveling wave location method; the second one is locating the fault section by SVM. It also adopts the wavelet to reduce the noise of fault signal,and the accuracy can be more precise when the parameters of SVM are optimized.The simulation results of ATP and MATLAB show that the method can determine the single phase grounding fault point in 10kv distribution networks with branches accurately.

• Periodical: Advanced Materials Research (Volumes 986-987)
• Pages: 1437-1442
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.986-987.1437
• Online since: July 2014
• Authors: Feng Yan*, Shuang Shuang Li
• Keywords: 10 KV Distribution Networks, C-Type of Traveling Wave, Single Phase Grounding Fault, SVM, Wavelet

References

[1] Yan Feng, Yang Qixun, Qi Zheng, et al: Study on Fault Location Scheme for Distribution Network Based on Traveling Wave Theory [J]. Proceedings of the CSEE Vol. 24(2004), pp.37-43.

[2] Bo Z Q: Accurate Fault Location Technique for Distribution System Using Fault-generated High-frequency Transient Voltage Signals [J]. Generation, Transmission and Distribution, IEE Proceedings Vol. 146 (1999), pp.73-79.

DOI: 10.1049/ip-gtd:19990074

[3] Qi Jian: Study on Single Terminal Traveling-wave Fault Location of Transmission Line [J]. Power System Technology Vol. 29 (2005), pp.65-70.

[4] Xu Zhenhua: Detection of Low-voltage Arc Fault Based on Support Vector Machine [J]. Proceedings of the CSU-EPSA Vol. 24(2012), pp.128-131.

[5] J Mora-Florez, J Bedoya-Ceballos, Perez-Hernandez: Selection of Currents Patterns Using SVMs for Locating Faults in Radial Power Systems [J]. IEEE, Transmission and Distribution Conference and Exposition, Latin America (2008), pp.1-7.

DOI: 10.1109/tdc-la.2008.4641826

[6] N. Cristianini, Shawe-Taylor: An Introduction to Support Vector Machines [M]. Cambridge University Press (2000).

[7] Yan Feng, Liu Wenxuan, Dong Wei, et al: A New Composite Method of Fault Location for 10KV Distribution Lines [J]. Proceedings of the CSU-EPSA Vol. 24 (2012), pp.117-122.

[8] KE Hui, GU Jie: Wavelet Threshold De-noising of Power System Signals [J]. Proceedings of the CSU-EPSA Vol. 22 (2010), pp.103-108.

[9] Information on http: /www. ilovematlab. cn/thread-35262-1-1. html.