Comparative Evaluation of Partially-Rated Energy Storage Integration Topologies for High Voltage Modular Multilevel Converters

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

Abstract / Description of output

This paper compares three partially-rated MMC topologies (Partially Rated Storage - PRS, Stack Parallel Branch - SPB, Inductor Parallel Branch - IPB) which integrate energy storage solutions for HVDC-scale Modular Multilevel Converters to provide with extra degrees of flexibility in the grid. The paper compares (i) the ES power that can be contributed from each topology under a given converter design and (ii) the trade-offs in terms of losses, and control adaptation required on top of a standard half-bridge MMC design in order to provide ES power. The results indicate that MMC stacks with full-bridge submodules have consistently higher ES power capability than their half-bridge counterparts - this comes at the expense of higher losses and extra devices, which for certain applications could be avoided.

Original languageEnglish
Title of host publication24th European Conference on Power Electronics and Applications, EPE 2022 ECCE Europe
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9789075815399
Publication statusPublished - 17 Oct 2022
Event24th European Conference on Power Electronics and Applications, EPE 2022 ECCE Europe - Hanover, Germany
Duration: 5 Sept 20229 Sept 2022

Publication series

Name24th European Conference on Power Electronics and Applications, EPE 2022 ECCE Europe

Conference

Conference24th European Conference on Power Electronics and Applications, EPE 2022 ECCE Europe
Country/TerritoryGermany
CityHanover
Period5/09/229/09/22

Keywords / Materials (for Non-textual outputs)

  • Ancillary Services
  • Energy Storage
  • HVDC transmission
  • Modular Multilevel Converter

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