Submodule voltage fluctuation elimination in Modular Multilevel Converter with integrated Super Capacitor Energy Storage System

  • Shuguang Song
  • , Jinjun Liu
  • , Shaodi Ouyang
  • , Xingxing Chen

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

5 Scopus citations

Abstract

Modular multilevel converter (MMC) receives wide acceptance in high power, high voltage applications. However, large capacity capacitors are needed in the sub-modules due to low frequency fluctuation power. The voltage fluctuation is even larger especially in the startup of Motor drive or low frequency output application. Besides, the integrated energy storage systems (ESS) in MMC is used for recovering the kinetic energy in motor drive. This paper investigates the feasibility of using the ESS to work as the energy buffer for the low frequency fluctuation energy in the submodule (SM) while achieving the energy storage function at the same time. Simulation results in PSCAD/EMTDC prove the validity of the control strategy.

Original languageEnglish
Title of host publication2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1960-1964
Number of pages5
ISBN (Electronic)9781509051571
DOIs
StatePublished - 25 Jul 2017
Event3rd IEEE International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017 - Kaohsiung, Taiwan, Province of China
Duration: 3 Jun 20177 Jun 2017

Publication series

Name2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017

Conference

Conference3rd IEEE International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
Country/TerritoryTaiwan, Province of China
CityKaohsiung
Period3/06/177/06/17

Keywords

  • energy storage system
  • low frequency
  • modular multilevel converter
  • super capacitor
  • voltage fluctuation

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