Reliability assessment of distribution systems considering telecontrolled switches and microgrids

Stefania Conti, Santi Agatino Rizzo, Ehab F. El-Saadany, Mohammed Essam, Yasser M. Atwa

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

Telecontrol of distribution switching devices is recognized as a major means for reducing interruption duration after a fault occurrence in modern distribution systems, since it allows one to isolate the faulted sections and to restore the healthy ones as quickly as possible. In order to reduce interruption frequency as well, it is necessary to increase the number of series automatic circuit breakers. Further benefits in terms of service continuity improvement can be obtained by allowing islanded operation of relatively small portions of distribution network (microgrids) in the presence of distributed energy resources in order to supply the local load autonomously during upstream faults. This paper aims to describe an innovative systematic method and its related analytical formulation to evaluate distribution system reliability indices accounting for advanced operation practices such as those based on telecontrol and islanding.

Original languageBritish English
Article number6658968
Pages (from-to)598-607
Number of pages10
JournalIEEE Transactions on Power Systems
Volume29
Issue number2
DOIs
StatePublished - Mar 2014

Keywords

  • Analytical models
  • distributed power generation
  • microgrids
  • power distribution
  • power system reliability
  • remote-controlled switches
  • smart grids

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