Control Strategies for Microgrids with Distributed Energy Storage Systems: An Overview

Publication: Research - peer-reviewJournal article – Annual report year: 2018

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This paper presents an overview of the state of the art control strategies specifically designed to coordinate distributed energy storage (ES) systems in microgrids. Power networks are undergoing a transition from the traditional model of centralised generation towards a smart decentralised network of renewable sources and ES systems, organised into autonomous microgrids. ES systems can provide a range of services, particularly when distributed throughout the power network. The introduction of distributed ES represents a fundamental change for power networks, increasing the network control problem dimensionality and adding long time-scale dynamics associated with the storage systems' state of charge levels. Managing microgrids with many small distributed ES systems requires new scalable control strategies that are robust to power network and communication network disturbances. This paper reviews the range of services distributed ES systems can provide, and the control challenges they introduce. The focus of this paper is a presentation of the latest decentralised, centralised and distributed multi-agent control strategies designed to coordinate distributed microgrid ES systems. Finally, multi-agent control with agents satisfying Wooldridge's definition of intelligence is proposed as a promising direction for future research.
Original languageEnglish
JournalI E E E Transactions on Smart Grid
Volume9
Issue number4
Pages (from-to)3652-3666
ISSN1949-3053
DOIs
StatePublished - 2018
CitationsWeb of Science® Times Cited: 9

    Keywords

  • Centralised control, Decentralised control, Dynamic optimal power flow, Energy management system, Energy storage, Hierarchical control, Microgrid, Multi-agent control, Smart grid, Technology Readiness Level
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