Index for the evaluation of distributed generation impacts on distribution system protection

L.F. Ochoa, L.G.W. Da Silva, G.P. Harrison, A. Padilha-Feltrin, J.R.S. Mantovani

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    Abstract

    Connection of Distributed Generation (DG) to distribution networks is increasingly supported by environmental concerns and power market regulations. Nevertheless, technical problems related with protection devices and coordination schemes require special attention since they may weaken the reliability and safety of the system. This paper proposes a methodology to assess the impacts caused by the insertion of DG into a distribution network with a protection scheme not designed for this new scenario, evaluated by means of short circuit analysis and protective devices coordination. In this way, an index will be utilised as an attempt to quantify the protection scheme upgrade required for the distribution network. This index will be integrated into a multiobjective approach aimed at assessing drawbacks and benefits of different DG configurations considered in the analysis.
    Original languageEnglish
    Title of host publication40th Universities Power Engineering Conference UPEC 2005
    Pages1-5
    Number of pages5
    Publication statusPublished - Sept 2005
    Event40th Universities Power Engineering Conference UPEC 2005 -
    Duration: 7 Sept 20059 Sept 2005

    Conference

    Conference40th Universities Power Engineering Conference UPEC 2005
    Period7/09/059/09/05

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