Energy Systems

, Volume 6, Issue 4, pp 585–602 | Cite as

Pilot field test of intentional islanding in distribution network

  • T. M. L. Assis
  • G. N. Taranto
  • D. M. Falcão
  • P. M. B. Ferreira
  • C. E. V. Pontes
  • L. P. Mendonça
Original Paper


Power supply interruptions to final customers are mainly caused by failures in the distribution system. The increase of distributed generation connected to the distribution system offers a possibility to reduce the duration and frequency of such interruptions as local generation can be used to feed local demand. This paper presents results of an actual implementation of an islanding operation for a rural feeder in Rio de Janeiro State, Brazil. A MW-scale electrical islanding, so-called minigrid, is formed when the utility circuit-breaker is opened, leaving part of the utility customers supplied solely by a 5.55 MVA synchronous machine based small hydro power plant. Field measurements were compared to simulation results obtained from a digital simulator developed to evaluate active distribution networks.


Distributed generation Islanded operation Small hydro power plant 



The authors would like to acknowledge the personnel of Light S.E.S.A. that were involved in the field tests. This work was financially supported by CAPES, CNPq and FAPERJ.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • T. M. L. Assis
    • 1
  • G. N. Taranto
    • 1
  • D. M. Falcão
    • 1
  • P. M. B. Ferreira
    • 2
  • C. E. V. Pontes
    • 2
  • L. P. Mendonça
    • 2
  1. 1.Electric Engineering DepartmentCOPPE/UFRJRio de JaneiroBrazil
  2. 2.Light S.E.S.A.Rio de JaneiroBrazil

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