Advanced decentralized DER control for islanded microgrids

M. J. Hossain, J. Lu, M. A. Mahmud, T. Aziz

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

7 Citations (Scopus)

Abstract

Voltage and frequency regulations are main requirements for autonomous operation of an isolated microgrid with electronically interfaced distributed energy resource (DER) units. This paper presents a robust decentralized control design scheme for a multi-DER microgrid to enhance its voltage and frequency regulations. The proposed control scheme utilizes linear quadratic (LQ) decentralized control scheme to design controllers, which are robust to the uncertainty in the network and system nonlinearities. The effectiveness of the proposed controller is demonstrated through simulation on a test system, with complete nonlinear models, for large disturbances. It is found that the designed controller provides excellent performance during transient periods as well as restores the pre-disturbance steady-state operation within prescribed time frame.

Original languageEnglish
Title of host publication2014 Australasian Universities Power Engineering Conference
Subtitle of host publicationAUPEC 2014 Proceedings
EditorsA. Abu-Siada, M. A. S. Masoum
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-5
Number of pages5
ISBN (Electronic)9780646923758
DOIs
Publication statusPublished - 24 Nov 2014
Externally publishedYes
Event24th Australasian Universities Power Engineering Conference, AUPEC 2014 - Perth, Australia
Duration: 28 Sep 20141 Oct 2014

Other

Other24th Australasian Universities Power Engineering Conference, AUPEC 2014
CountryAustralia
CityPerth
Period28/09/141/10/14

Keywords

  • DER units
  • distribution systems
  • linear quadratic control
  • microgrid
  • robust control

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