Fault location observability analysis and optimal meter placement based on voltage measurements

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


Various transmission line fault location algorithms have been proposed in the past depending on measurements available. These methods evince that if a sufficient number of meters are placed in a power network to record the fault measurements, then the fault location can be reliably estimated. A relevant question to ask may be: how many meters are sufficient in order to derive a reliable and unique fault location estimate for a given network? This paper addresses this question by defining and performing the fault location observability analysis. An optimal meter placement scheme is proposed for determining the optimal locations to place meters so as to make the system observable while minimizing the required number of meters to reduce costs. The proposed method is especially useful for power networks where digital relays have not yet been widely adopted and measuring devices such as digital fault recorders are deployed for monitoring purposes. A sample power network has been employed to illustrate the proposed method.

Original languageEnglish
Pages (from-to)1062-1068
Number of pages7
JournalElectric Power Systems Research
Issue number7
StatePublished - Jul 2009


  • Fault location observability analysis
  • Optimal meter placement
  • Transmission line fault location

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


Dive into the research topics of 'Fault location observability analysis and optimal meter placement based on voltage measurements'. Together they form a unique fingerprint.

Cite this