An H-Bridge Modular DC-DC Converter with Bidirectional Flyback-Based Energy Equalization Modules

Ahmed Elserougi, Ahmed Massoud, Shehab Ahmed

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

1 Citation (Scopus)

Abstract

Conventional Modular Multilevel Converter (MMC) is a promising candidate in high-voltage high-power applications. Unfortunately, operating the conventional MMC with DC output voltage results in unbalanced capacitors' voltages. In literature, Dual Half Bridge (DHB)-based Energy Equalization Modules (EEMs) concept was presented; where EEMs can be employed with phase shift control to transfer energy between the upper and lower submodules (SMs) in the same leg to keep balanced capacitors voltages with low ripples during the DC/low frequency operation of the conventional MMC. In this paper, an H-bridge Modular DC-DC converter with flyback-based EEMs is presented. The bidirectional flyback-based EEMs provide the needed energy equalization task simply by operating the flyback converter with 50% duty cycle; which is simpler when compared with the DHB-based EEMs. Detailed illustration of the proposed architecture is presented. Simulation results are presented to show the effectiveness of the bidirectional flyback-based EEMs.

Original languageEnglish
Title of host publication2018 5th International Conference on Electric Power and Energy Conversion Systems, EPECS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781538664575
DOIs
Publication statusPublished - 21 Aug 2018
Event5th International Conference on Electric Power and Energy Conversion Systems, EPECS 2018 - Kitakyushu, Japan
Duration: 23 Apr 201825 Apr 2018

Publication series

Name2018 5th International Conference on Electric Power and Energy Conversion Systems, EPECS 2018

Other

Other5th International Conference on Electric Power and Energy Conversion Systems, EPECS 2018
CountryJapan
CityKitakyushu
Period23/4/1825/4/18

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Keywords

  • Energy Equalization Module
  • modular multilevel converter

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Control and Optimization

Cite this

Elserougi, A., Massoud, A., & Ahmed, S. (2018). An H-Bridge Modular DC-DC Converter with Bidirectional Flyback-Based Energy Equalization Modules. In 2018 5th International Conference on Electric Power and Energy Conversion Systems, EPECS 2018 [8443544] (2018 5th International Conference on Electric Power and Energy Conversion Systems, EPECS 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EPECS.2018.8443544