Evaluation of fault characteristics in microgrids dominated by inverter-based distributed generators with different control strategies

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Abstract

This paper presents a comprehensive study of the fault current characteristics of microgrids dominated by Inverter-Based Distributed Generators (IBDGs) with different control strategies, with a view to identifying protection challenges and potential future solutions. Different combinations of control strategies, (i.e. PQ, V/F and droop control strategies) are deployed within different IBDGs, to represent typical microgrid operating scenarios and to investigate the impact of these strategies and types of IBDGs on the fault behavior of microgrids under islanded mode of operation. Various controllers are also deployed on the IBDGs at different physical locations in the system to investigate locational impact on microgrids fault behavior. Extensive simulation results will be presented and the impact of different control strategies and IBDG locations on the protection systems performance will be evaluated based on the results. Recommendations of how protection systems should take the various control strategies and locational impact into account to ensure reliable operation will also be discussed and future work will be outlined.
Original languageEnglish
Number of pages4
Publication statusPublished - 21 Oct 2019
Event8th International Conference on Advanced Power System Automation and Protection - Xi’an Jiaotong University, Xi'an, China
Duration: 21 Oct 201924 Oct 2019
http://www.apap2019.org/callforpaper.html

Conference

Conference8th International Conference on Advanced Power System Automation and Protection
Abbreviated titleAPAP2019
CountryChina
CityXi'an
Period21/10/1924/10/19
Internet address

Keywords

  • microgrids
  • protection
  • control
  • fault analysis
  • inverter based distributed generator

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