Next Article in Journal
Analysis of the Potential of Low-Temperature Heat Pump Energy Sources
Previous Article in Journal
All-Polyamide Composite Coated-Fabric as an Alternative Material of Construction for Textile-Bioreactors (TBRs)
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Energies 2017, 10(11), 1929; doi:10.3390/en10111929

A Cycle Voltage Measurement Method and Application in Grounding Grids Fault Location

1
State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
2
State Grid Henan Electric Power Corporation Research Institute, Zhengzhou 450052, China
*
Author to whom correspondence should be addressed.
Received: 17 October 2017 / Revised: 12 November 2017 / Accepted: 16 November 2017 / Published: 21 November 2017
View Full-Text   |   Download PDF [5865 KB, uploaded 22 November 2017]   |  

Abstract

The corrosion of grounding grids can result in a grounding accident of a power system, and much attentions has been concentrated on the method used to detect a corrosion fault in a grounding grid, in which the methods of voltage measurement and magnetic field measurement are usually used. In this paper, a cycle voltage measurement method and L-curve regularization method are proposed to locate the faults in grounding grids. The L-curve method was used to select the appropriate regularization parameter, which can effectively balance the error and stability of the solution to the inverse problem. The uncertainty of the solution due to the ill-posed problem in the inverse problem has been well-solved. Experiments were conducted in a laboratory with two network types. In addition, a field experiment was carried out in a 110-kV substation. Both of the results showed that the method can effectively locate a branch fault with a single branch and multiple branches in the grounding grids. View Full-Text
Keywords: cycle voltage measurement; grounding grids; fault location; L-curve regularization method; inverse problem cycle voltage measurement; grounding grids; fault location; L-curve regularization method; inverse problem
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Yang, F.; Wang, Y.; Dong, M.; Kou, X.; Yao, D.; Li, X.; Gao, B.; Ullah, I. A Cycle Voltage Measurement Method and Application in Grounding Grids Fault Location. Energies 2017, 10, 1929.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top