A New Fault-Location Method with High Robustness for Distribution Systems

  • Dahai You Huazhong University of Science and Technology
  • Lei Ye Huazhong University of Science and Technology
  • Xianggen Yin Huazhong University of Science and Technology
  • Qiguo Yao ZheJiang Ocean University
  • Ke Wang Huazhong University of Science and Technology
  • Junchun Wu Huazhong University of Science and Technology
Keywords: Power distribution lines, fault location, iterative method, fault admittance matrix

Abstract

This paper proposes a new single-end impedance based fault location method for power distribution systems. Based on direct three-phase circuit analysis, the authors have devised a generalized fault-location formulation in phase domain utilizing the fault admittance matrix. And Newton-Rapson method is used for the solution of fault-locaiton formulation. In order to eliminate the capacitive effect of feeders, the proposed fault location algorithm adopts π model of line for the calculation of voltage and current in iterative process. The validity of the algorithm is tested with IEEE 34 Node Test Feeder using PSCAD-EMTDC. Simulation results have demonstrated that the method has high accuracy and good robustness.

DOI: http://dx.doi.org/10.5755/j01.eee.19.6.1896

Author Biographies

Dahai You, Huazhong University of Science and Technology
College of Electrical and Electronic Engineering,Professor
Lei Ye, Huazhong University of Science and Technology
College of Electrical and Electronic Engineering
Xianggen Yin, Huazhong University of Science and Technology
College of Electrical and Electronic Engineering,Professor
Qiguo Yao, ZheJiang Ocean University
School of Mechanical & Electrical engineering; Assoc. Professor
Ke Wang, Huazhong University of Science and Technology
College of Electrical and Electronic Engineering
Junchun Wu, Huazhong University of Science and Technology
College of Electrical and Electronic Engineering
Published
2013-06-10
Section
ELECTRICAL ENGINEERING