Optimal distributed generation allocation and load shedding for improving distribution system reliability

Ahmed S.A. Awad, Tarek H.M. El-Fouly, Magdy M.A. Salama

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


Recent deployment of distributed generation has led to a revolution in distribution systems and the emergence of "smart grid" concepts. The smart grid mainly intends to facilitate integration of renewable energy sources and to achieve higher system reliability and efficiency. Different distributed generation types found in modern distribution systems can be classified into two main categories: intermittent-and dispatchable-based distributed generation; the latter has a unique capability of enabling successful islanding operation, thus improving system reliability. This article proposes a methodology for allocating dispatchable distributed generation units in distribution systems to economically improve system reliability. Distributed generation installation and operation costs are to be optimized against the reliability value, expressed as customers "willingness to pay" (WTP) to avoid power interruptions. Therefore, the main goal of this research work is to determine the optimal combination between distributed generation units to be installed and loads to be shed during all possible contingencies. A probabilistic load model is adopted to determine the optimal size of allocated distributed generation units.

Original languageBritish English
Pages (from-to)576-584
Number of pages9
JournalElectric Power Components and Systems
Issue number6
StatePublished - 26 Apr 2014


  • distributed generation
  • islanding
  • load shedding
  • smart grid
  • willingness to pay


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