Advertisement

Open-Neutral Fault Detection in Underground Space Based on Genetic Support Vector Machine

  • Xuechen ZhaoEmail author
  • Ping Wang
  • Jianchun Xing
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 890)

Abstract

When an open-neutral fault occurs in an underground space low-voltage distribution system, the neutral-point voltage will offset, which will make a lot of equipment unable to work normally. In order to solve such problem, the changes of third harmonic current and neutral-point offset voltage were studied and analyzed, the parameters of Support Vector Machine (SVM) was optimized by using a genetic algorithm. The output of SVM whether normal or fault state can be distinguished by taking the variation of harmonic current and neutral offset voltage as the input of SVM. The experimental result shows that the method of optimizing the parameters of SVM based on the genetic algorithm can effectively detect the fault.

Keywords

Open-neutral fault Fault detect Harmonic Neutral-point offset voltage SVM 

References

  1. 1.
    Li, Z., Liu, W., Wang, C.: The utility model relates to a new type of neutral line breaking protection module for low voltage circuit breakers. CN201020553735[P].2010-09-10Google Scholar
  2. 2.
    Yong, J., Zhou, H.: A harmonic-based approach for open-neutral fault detection in low voltage systems. Power Syst. Protect. Control 19, 49–57 (2014)Google Scholar
  3. 3.
    Yong, J., Zhou, C., Yang, B.: A harmonic-based approach for open-neutral fault detection in low voltage systems. In: IEEE, International Conference on Harmonics and Quality of Power. IEEE, pp. 53–58 (2012)Google Scholar
  4. 4.
    Liu, C., He, Z., Chen, Z.: A new method for zero-line disconnection detection with zero sequence current criterion. Energy 42(4), 40–45 (2015)Google Scholar
  5. 5.
    Chen, Q., Liu, C., Liao, W.: Principle and implementation of adaptive neutral line breaking protection. Electric Power 50(5), 46–51 (2017)Google Scholar
  6. 6.
    Wang, P., Liu, B.: Detection method of neutral line breaking in three-phase four-wire low-voltage power supply system. Electrotech. Appl. 16, 48–50 (2015)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.College of Defense EngineeringArmy Engineering University of PLANanjingChina

Personalised recommendations