Study on Single-Phase Earth Fault Location Method in Mine Non-Effectively Grounded Network Based on WAMS

Dan Lu; Jun Qiang Liu; Xiu Gang Yin

doi:10.4028/www.scientific.net/AMM.602-605.2110

Paper Titles

Two Algorithms of Defect Detection about Digital Radiograph Image
p.2093

Spectrophotometric Method for the Assay of Aspirin
p.2097

Research on Review Spam Detection Based on Sentiment Analysis in Electronic Commerce
p.2101

A Dimension Reduction Method and its Application in GIS Partial Discharge Pattern Recognition Research
p.2105

Study on Single-Phase Earth Fault Location Method in Mine Non-Effectively Grounded Network Based on WAMS
p.2110

Design of Automatic Output of Carbon Electrode Processing System Testing Tag Based on WinCC
p.2114

Speech Feature Parameter Extraction and Recognition Based on Interpolation
p.2118

Monitor System and Safety Status Analysis of Large Power Equipment Transportation
p.2124

Research of the Intelligent Medical Infusion Monitoring System
p.2130

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 602-605Study on Single-Phase Earth Fault Location Method...

Study on Single-Phase Earth Fault Location Method in Mine Non-Effectively Grounded Network Based on WAMS

Abstract:

In allusion to the low reliability and sensitivity of existing single-phase earth fault location method, this article proposed a new location method based on WAMS in mine non-effectively grounded network. It analyzed the logical relationship of zero-sequence current of each branch when single-phase earth fault occurred and deduced zero-sequence current formulae of each branch. The detailed description is given to calculating differential variable of zero-sequence current and explicating principle and realization of fault section location. The coal mine power supply model based on WAMS is introduced and the scheme was verified by simulation via MATLAB and calculation via Fast Fourier Transform. The results indicate that it avoids influences by load capacity and the voltage initial phase angle, then effectively enhances fault location reliability and sensitivity.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 602-605)

Pages:

2110-2113

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.602-605.2110

Citation:

Cite this paper

Online since:

August 2014

Authors:

Dan Lu*, Jun Qiang Liu, Xiu Gang Yin

Keywords:

Differential Variable of Zero-Sequence Current, Location Method, Non-Effectively Grounded Network, Single-Phase Earth Fault, WAMS

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] Wang Yanwen, Liu Wenjun. New selective earth leakage protection scheme based on zero- sequence current amplitude and phase comparison [J]. China Coal Society, 2010, 35(3): 515-51.

Google Scholar

[2] Song Xiaozhou, Wang Dong, Shen Hui, et al. Feasibility analysis on zero-sequence current differential principle applied in busbar protection[J]. Relay, 2002, 30(4): 12-14.

Google Scholar

[3] Long Fei. Research on intelligent protection system in coal mine power network based on WAMS [D]. Beijing: China University of Mining and Technology (Beijing), (2011).

Google Scholar

[4] Hu Yi-sheng. Applications of WAMS in Power System. Electrotechnical. 2007, 5: 19-21.

Google Scholar

[5] Ma Yongxiang. Relay protection of power system [M]. Beijing: Peking University Press, (2013).

Google Scholar