Fault Line Selection Method of Small Current Grounding System Based on Deep Learning

doi:10.12096/j.2096-4528.pgt.19103

Power Generation Technology ›› 2019, Vol. 40 ›› Issue (6): 548-554.DOI: 10.12096/j.2096-4528.pgt.19103

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Fault Line Selection Method of Small Current Grounding System Based on Deep Learning

Guodong ZHANG¹(),Haitao PU¹(),Kai LIU²()

¹ Department of Electrical and Information, Shandong University of Science and Technology, Jinan 253500, Shandong Province, China
² Luoyang Power Supply Company, Luoyang 471000, Henan Province, China

Received:2019-07-06 Published:2019-12-30 Online:2019-12-31
Supported by:
Ministry of Education's Cooperative Education Program Project(201702064021);Research Project of Jinan Campus of Shandong University of Science and Technology(JNJG2017203)

Abstract

Abstract:

At present, the single-phase grounding fault line selection problem of small current grounding system has not been completely solved. In order to improve the success rate of single-phase grounding fault line selection, a new method based on deep learning network was proposed. Firstly, the simulation model of neutral un-grounded system was built by PSCAD. By setting the fault of each line under different grounding resistors, the sample data based on the zero sequence current value and phase angle of each line was obtained out. The sample data was divided into three parts:training set, verification set, and test set. Secondly, a deep learning neural network was constructed based on Keras, and the network was trained using the training set and validation set. Finally, the trained model was tested The results show that the method has the characteristics of simple modeling, high success rate and no influence of transition resistance.

Key words: small current grounding system, singlephase grounding fault, fault line selection, deep learning

Guodong ZHANG,Haitao PU,Kai LIU. Fault Line Selection Method of Small Current Grounding System Based on Deep Learning[J]. Power Generation Technology, 2019, 40(6): 548-554.

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Fault Line Selection Method of Small Current Grounding System Based on Deep Learning

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