Universal droop controller for DC–DC converter interfaces onto a modular multi-tiered DC microgrid

Sam Williamson, Joanne Kitson, Antonio Griffo, Wilson Macêdo

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

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Abstract

Microgrids are usually based on single voltage levels, supporting a number of distributed generation sources and loads. This paper describes a multi-tier DC microgrid, with multiple voltage levels able to source and supply different power demands. A universal droop controller is developed for this multi-tier microgrid, able to connect uni- and bi-directional elements on to the grid. Simulations are used to demonstrate the functionality of the controller to allow autonomous load sharing based on decentralised control, with bi-directional power transfer between tiers to balance supply and demand at each level. Power can also be directly sent from one element of the microgrid to another, which is demonstrated through simulation, allowing for integration with future peer-to-peer energy trading systems.
Original languageEnglish
Title of host publication9th IET International Conference on Power Electronics, Machines and Drives (PEMD 2018)
PublisherInstitution of Engineering and Technology (IET)
Pages3469-3473
Number of pages5
DOIs
Publication statusPublished - Jun 2019
EventIET Power Electronics, Machines and Drives Conference - Liverpool, United Kingdom
Duration: 17 Apr 201819 Apr 2018

Publication series

NameJournal of Engineering
PublisherInstitution of Engineering and Technology (IET)
Number17
Volume2019
ISSN (Print)2051-3305
ISSN (Electronic)2051-3305

Conference

ConferenceIET Power Electronics, Machines and Drives Conference
CountryUnited Kingdom
CityLiverpool
Period17/04/1819/04/18

Keywords

  • DC Microgrid
  • droop control
  • multi-tier
  • simulation

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  • Cite this

    Williamson, S., Kitson, J., Griffo, A., & Macêdo, W. (2019). Universal droop controller for DC–DC converter interfaces onto a modular multi-tiered DC microgrid. In 9th IET International Conference on Power Electronics, Machines and Drives (PEMD 2018) (pp. 3469-3473). (Journal of Engineering; Vol. 2019, No. 17). Institution of Engineering and Technology (IET). https://doi.org/10.1049/joe.2018.8163