Circulating Current Elimination of Grid-Connected Modular Multilevel Converters

Fatemeh Shahnazian, Jafar Adabi, Edris Pouresmaeil, Majid Mehrasa, João P.S. Catalão

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)
170 Downloads (Pure)

Abstract

This paper presents an analytical dynamic model of a modular multilevel converter (MMC) in grid-connected operating mode. The proposed model is then efficiently used to design a circulating current controller. The proposed controller can accurately study the dynamic and steady-state performance of the converter through harmonic evaluations. Based on this configuration, the modulation is accomplished so that the stable performance of the converter in the network is obtained, which is considered as the foremost novelty of the proposed control method over existing control methods. In order to mitigate the circulating currents, the proposed controller inserts an estimated second harmonic component into modulation indices, which is considered as the second novelty of the proposed control method. The functionality and capability of the proposed control method are validated using detailed theoretical analysis and simulations with MATLAB/Simulink.
Original languageEnglish
Title of host publicationProceedings of the 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC/ I&CPS Europe)
PublisherIEEE
Number of pages6
ISBN (Electronic)978-1-5386-5186-5
DOIs
Publication statusPublished - 2018
MoE publication typeA4 Article in a conference publication
EventIEEE International Conference on Environment and Electrical Engineering and IEEE Industrial and Commercial Power Systems Europe - Palermo, Italy
Duration: 12 Jun 201815 Jun 2018

Conference

ConferenceIEEE International Conference on Environment and Electrical Engineering and IEEE Industrial and Commercial Power Systems Europe
Abbreviated titleEEEIC/I&CPS Europe
Country/TerritoryItaly
CityPalermo
Period12/06/201815/06/2018

Keywords

  • circulating current control
  • improved steady-state operation
  • modular multilevel converter
  • MMC

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