Micro-grids reliability enhancement under different penetration levels of hybrid dg units

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

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Novel mechanism of customized adequacy formulation is proposed in order to enhance micro grids system reliability. The mechanism accounts for 2-levles of load curtailment, and is mainly based on probabilistic load profile and hybrid Distributed Generation (DG) units modeling. The two load curtailments are needed in order to ensure adequate technical constraints at steady state condition during islanding mode of operation. The effectiveness of the proposed formulation has been verified using system independent analytical expressions for the evaluation of both reliability and Expected Energy Not Served (EENS) indices. The evaluation has examined the impact of different penetration levels of Hybrid DG Units in case study islands. Results show the enhancement of the overall distribution system reliability and the recommended conditions for successful islanding mode of operation.

Original languageBritish English
Pages (from-to)1407-1418
Number of pages12
JournalJournal of Electrical Engineering and Technology
Issue number4
StatePublished - Jul 2018


  • Analytical models
  • Distributed generation
  • Distribution system reliability
  • EENS
  • Islanding
  • Micro grids


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