Multi Busbar Sub-module Modular Multilevel STATCOM with Partially Rated Energy Storage Configured in Sub-stacks

Chuantong Hao, Wenhao Ma, Michael Merlin, Paul Judge, Stephen Finney

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

Abstract / Description of output

This paper presents a modular multilevel STATCOM with partially rated energy storage configured in sub-stacks based on full bridge multi busbar Sub-module (SM). The soft-paralleling mechanism and doubled paths increase the current limit. The lower level controller of the proposed topology is detailed introduced and the performances are compared with a conventional single-busbar full bridge STATCOM controlled by classic SM sorting based low level controller. When providing reactive power compensation, power losses is reduced by 14.9%, and the maximum SM voltage deviation is reduced by 35.2%, while active power capability is further improved from power factor = 0.5 to power factor = 0.7 with the proposed control framework of the MBSM STATCOM.

Original languageEnglish
Title of host publication24th European Conference on Power Electronics and Applications, EPE 2022 ECCE Europe
PublisherInstitute of Electrical and Electronics Engineers
Number of pages8
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

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)

  • Mixed Modulation
  • Modular Multilevel Converters (MMC)
  • Multi-Busbar Submodule
  • Partially Rated Energy Storage
  • Static Synchronous Compensator (STATCOM)

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