Distributed Control Architecture for a Low-Voltage Modular Multilevel Converter with Partial Energy Storage Integration

Zoe Blatsi*, Sebastian Neira, Paul Judge, Stephen Finney, Michael Merlin

*Corresponding author for this work

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

Abstract

This paper discusses the design of a low-voltage multilevel converter used for validation of energy storage integration topologies. The impact of control architecture on design complexity, common-mode noise immunity, and protections is discussed. In this implementation the converter operates on distributed control - a main control unit communicates with six distributed control units each performing functions related to the local stack. The submodules are connected via galvanically isolated components with their local control unit, and each of the local control units is connected with the main control unit over fibre optical interface. The hardware design, control and protections are presented. The setup is easy to reconfigure for different topologies, especially important in the case of partial energy storage integration. The paper is concluded by experimental results of the converter in standard MMC mode, and topologies involving partial energy storage integration.

Original languageEnglish
Title of host publication2023 11th International Conference on Power Electronics and ECCE Asia (ICPE 2023 - ECCE Asia)
Subtitle of host publicationGreen World with Power Electronics
PublisherInstitute of Electrical and Electronics Engineers
Pages2271-2277
Number of pages7
ISBN (Electronic)9788957083505
DOIs
Publication statusPublished - 22 Aug 2023
Event11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia - Jeju, Korea, Republic of
Duration: 22 May 202325 May 2023

Publication series

NameInternational Conference on Power Electronics (ICPE)
PublisherIEEE
ISSN (Print)2150-6078
ISSN (Electronic)2150-6086

Conference

Conference11th International Conference on Power Electronics - ECCE Asia, ICPE 2023-ECCE Asia
Country/TerritoryKorea, Republic of
CityJeju
Period22/05/2325/05/23

Keywords / Materials (for Non-textual outputs)

  • Control Architecture
  • Energy Storage (ES)
  • Modular Multilevel Converter (MMC)

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