Modelling of MMC including half-bridge and Full-bridge submodules for EMT study

Hani Saad, Keijo Jacobs, Weixing Lin, Dragan Jovcic

Research output: Chapter in Book/Report/Conference proceedingPublished conference contribution

27 Citations (Scopus)

Abstract

Modelling of Modular Multilevel Converter (MMC) for electromagnetic transient type (EMT-type) simulations is challenging due to numerous IGBTs/diode devices. Detailed models of HVDC-MMC transmission systems require long computation times. Simplified models have been proposed in the past to overcome this problem. However, some of these types of model require a hard-coding development which depends on the EMT software used. This article presents a simple and efficient approach for modelling these types of MMC using only generic EMT blocks (i.e. power circuits and control components) that can be found in most EMT software libraries. Half- and Full-bridge submodules are considered. The models developed include the blocking state of submodule. A realistic HVDC-MMC link is used as a test case for validating the MMC models proposed.

Original languageEnglish
Title of host publication19th Power Systems Computation Conference, PSCC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-7
Number of pages7
ISBN (Electronic)9788894105124
ISBN (Print)9781467381512
DOIs
Publication statusPublished - 10 Aug 2016
Event19th Power Systems Computation Conference, PSCC 2016 - Genova, Italy
Duration: 20 Jun 201624 Jun 2016

Conference

Conference19th Power Systems Computation Conference, PSCC 2016
Country/TerritoryItaly
CityGenova
Period20/06/1624/06/16

Keywords

  • EMT-type programs
  • half and full-bridge submodule
  • HVDC transmission
  • Modular multilevel converter (MMC)
  • Switching function
  • Voltage source converter (VSC)

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