Full-bridge Modular Multilevel Converter with High Frequency Link for Photovoltaic applications

Ruben Otero-De-Leon, Ned Mohan

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

7 Scopus citations

Abstract

This paper presents a novel 'Modular Multilevel Converter' (MMC) topology. The topology takes advantage of the MMC characteristics by offering multilevel output voltage with low Total Harmonic Distortion (THD), increased reliability, and design flexibility due to the modular nature of the converter [1] and [2]. This topology is composed of a 'full-bridge converter' (FBC) connected to multiple 'High Frequency Link' (HFL) modules via high frequency transformers. Each module produces its own isolated DC voltage that keeps the capacitor charged to a specific level, removing the need of a voltage-balancing algorithm. Furthermore the module voltage can be controlled by changing the FBC duty cycle in order to obtain lower output voltages without decreasing the number of levels. This topology fits well in large scale Photovoltaic (PV) power plants due to its capability to produce a high voltage output. This topology's feasibility is validated by simulation results (Matlab/Simulink).

Original languageEnglish (US)
Title of host publicationProceedings - 2015 IEEE 24th International Symposium on Industrial Electronics, ISIE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages294-299
Number of pages6
ISBN (Electronic)9781467375542
DOIs
StatePublished - Sep 28 2015
Event24th IEEE International Symposium on Industrial Electronics, ISIE 2015 - Buzios, Rio de Janeiro, Brazil
Duration: Jun 3 2015Jun 5 2015

Publication series

NameIEEE International Symposium on Industrial Electronics
Volume2015-September

Other

Other24th IEEE International Symposium on Industrial Electronics, ISIE 2015
Country/TerritoryBrazil
CityBuzios, Rio de Janeiro
Period6/3/156/5/15

Keywords

  • Full-Bridge Converter
  • Full-Bridge Rectifier
  • High Frequency Transformer
  • MMC
  • Modular Multilevel Converter
  • Photovoltaic Inverter

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