Performance analysis of the overcurrent protection for the renewable distributed generation dominated microgrids

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Abstract

This paper aims to present a study of the conventional protection scheme i.e. overcurrent (OC) protection’s malfunctioning in the microgrids dominated by inverter interfaced distributed generator (IIDG) under a range of scenarios by injecting faults at different locations of the network. Due to low cost and inherent back-up protection, overcurrent scheme is considered to be the main protection for the distribution networks and microgrids. However, the integration of IIDG in large number might introduce several protection challenges for microgrids. Existing literature discusses the protection issues that might arise in microgrids due to addition of distributed generation, but those challenges are not practically studied. Hence, in this paper, several fault cases are simulated by changing fault positions and using different combinations of IIDGs in the network so that protection challenges can be fully explored and performance of the overcurrent relays in the IIDG dominated microgrids can be analysed under those simulated cases.
Original languageEnglish
Number of pages5
Publication statusAccepted/In press - 28 Apr 2020
EventIEEE Region 10 Symposium 2020 - Hotel Pan Pacific Sonargaon Dhaka, Dhaka, Bangladesh
Duration: 5 Jun 20207 Jun 2020
http://tensymp2020.com/index.php

Conference

ConferenceIEEE Region 10 Symposium 2020
Abbreviated titleTENSYMP 2020
CountryBangladesh
CityDhaka
Period5/06/207/06/20
Internet address

Keywords

  • microgrids
  • inverter interfaced distributed generation (IIDG)
  • overcurrent relay
  • fault

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