Fault-location scheme for power distribution system with distributed generation

Shamam Fadhil Alwash, Vigna K. Ramachandaramurthy, Nadarajah Mithulananthan

Research output: Contribution to journalArticle

52 Citations (Scopus)


This paper presents a novel fault-location scheme for unbalanced power distribution system in the presence of distributed generation (DG). The proposed scheme first identifies the possible fault locations using a new formulation of the impedance-based method. The new formulation overcomes the requirement of fault-type identification by using only one fault-location equation. The proposed equation is applicable to all shunt fault types. From the possible fault locations, the exact fault location is then identified by matching the measured voltage at the substation bus and each DG unit bus with calculated ones. The proposed scheme is applicable for all DG types without the need for their individual parameters. The balanced and unbalanced laterals and the capacitive effect of distribution line are also considered. The proposed scheme was evaluated and tested on a modified IEEE 34-bus distribution system using PSCAD/EMTDC software.

Original languageEnglish
Article number6963498
Pages (from-to)1187-1195
Number of pages9
JournalIEEE Transactions on Power Delivery
Issue number3
Publication statusPublished - 01 Jun 2015


All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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