Design of robust distributed control for interconnected microgrids

Md Jahangir Hossain, Md Apel Mahmud, Federico Milano, Seddik Bacha, Ahmad Hably

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

This paper proposes a distributed control scheme to regulate the power flows among multiple microgrids operating in islanded mode. Each microgrid controller gathers information from neighboring microgrids and reduces dynamic interactions. Modal analysis and time-domain simulations are used to identify critical issues that degrade the stability of microgrids under different operating conditions. A case study comprising three interconnected microgrids is considered. Each microgrid includes distributed generation and is described through a detailed dynamic model. Time-domain analyses are carried out considering different scenarios and large disturbances. Simulation results indicate that, while conventional controllers can lead to poorly damped power oscillations among the interconnected microgrids, the proposed control scheme guarantees stability in the postdisturbance operating conditions.

Original languageEnglish
Pages (from-to)2724-2735
Number of pages12
JournalIEEE Transactions on Smart Grid
Volume7
Issue number6
DOIs
Publication statusPublished - 1 Nov 2016
Externally publishedYes

Keywords

  • decentralized control
  • distributed control
  • Microgrid
  • oscillation damping
  • robust control

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