Dynamic active power sharing in a resistive microgrid

Augustine M. Egwebe, Megdad Fazeli, Petar Igic, Paul Holland

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Abstract

This paper explores the use of a dynamic virtual impedance approach to load sharing as an alternative to the more generic droop load sharing scheme for low-voltage islanded micro-grids. The approach is based on taking advantage of the power decoupling capability of the virtual impedance scheme to facilitate appropriate load sharing based on the available generation capacity of distributed generation (DG) units. The proposed scheme identifies the DC operating zone of the photovoltaic inverter-based unit as irradiance levels change and conditions the virtual impedance loop for an efficient load sharing based on available generation. This dynamic approach allows taking into account the rating, output impedance and voltage limits of each unit. The proposed scheme provides energy saving; since energy demand from a local auxiliary generator is reduced. Results from the proposed dynamic scheme were tested on a P-f/Q-V droop, in the presence of virtual impedance, and results were compared with the conventional-static virtual impedance loading method. The proposed method is validated using MATLAB/SIMULINK simulations.

Original languageEnglish
Title of host publication4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016
EditorsKrishna Busawon, Aleksandar Nikolic, Goran Jankes, Alireza Maheri
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509007486
DOIs
Publication statusPublished - 18 Nov 2016
Externally publishedYes
Event4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016 - Belgrade, Serbia
Duration: 14 Sep 201616 Sep 2016

Publication series

Name4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016

Conference

Conference4th International Symposium on Environment Friendly Energies and Applications, EFEA 2016
CountrySerbia
CityBelgrade
Period14/09/1616/09/16

Keywords

  • Distributed Generation
  • Microgrids
  • Photovoltaic
  • Renewable Sources
  • Virtual Impedance

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Fingerprint Dive into the research topics of 'Dynamic active power sharing in a resistive microgrid'. Together they form a unique fingerprint.

Cite this