Next Article in Journal
Three-Phase Short-Circuit Current Calculation of Power Systems with High Penetration of VSC-Based Renewable Energy
Next Article in Special Issue
Analysis of Non-Isolated Multi-Port Single Ended Primary Inductor Converter or Standalone Applications
Previous Article in Journal
A Reconfigured Whale Optimization Technique (RWOT) for Renewable Electrical Energy Optimal Scheduling Impact on Sustainable Development Applied to Damietta Seaport, Egypt
Previous Article in Special Issue
Adaptive Controller of the Major Functions for Controlling a Drive System with Elastic Couplings
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle

Line-to-Line Fault Analysis and Location in a VSC-Based Low-Voltage DC Distribution Network

The Key Laboratory of Smart Grid of Ministry of Education, Tianjin University, Tianjin 300072, China
Author to whom correspondence should be addressed.
Energies 2018, 11(3), 536;
Received: 24 January 2018 / Revised: 23 February 2018 / Accepted: 26 February 2018 / Published: 2 March 2018
PDF [2703 KB, uploaded 2 March 2018]


A DC cable short-circuit fault is the most severe fault type that occurs in DC distribution networks, having a negative impact on transmission equipment and the stability of system operation. When a short-circuit fault occurs in a DC distribution network based on a voltage source converter (VSC), an in-depth analysis and characterization of the fault is of great significance to establish relay protection, devise fault current limiters and realize fault location. However, research on short-circuit faults in VSC-based low-voltage DC (LVDC) systems, which are greatly different from high-voltage DC (HVDC) systems, is currently stagnant. The existing research in this area is not conclusive, with further study required to explain findings in HVDC systems that do not fit with simulated results or lack thorough theoretical analyses. In this paper, faults are divided into transient- and steady-state faults, and detailed formulas are provided. A more thorough and practical theoretical analysis with fewer errors can be used to develop protection schemes and short-circuit fault locations based on transient- and steady-state analytic formulas. Compared to the classical methods, the fault analyses in this paper provide more accurate computed results of fault current. Thus, the fault location method can rapidly evaluate the distance between the fault and converter. The analyses of error increase and an improved handshaking method coordinating with the proposed location method are presented. View Full-Text
Keywords: fault analysis; DC distribution network; voltage source converter; fault location fault analysis; DC distribution network; voltage source converter; fault location

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

Xue, S.-M.; Liu, C. Line-to-Line Fault Analysis and Location in a VSC-Based Low-Voltage DC Distribution Network. Energies 2018, 11, 536.

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



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