An analytical method to evaluate flying capacitor multilevel converters and hybrid switched-capacitor converters for large voltage conversion ratios

Yutian Lei, Wen Chuen Liu, Robert Carl Nikolai Pilawa Podgurski

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

Abstract

This work investigates the use of multilevel conversion in dc-dc applications that involve a large voltage conversion ratio. A quantitative method that can serve as a guide to compare and design multilevel topologies for large conversion ratio applications is presented. The proposed method keeps the conduction loss and switching loss the same across the different converters and employs the passive component volume as the single performance metric. As examples, flying capacitor multilevel converters (FCMC) and hybrid switched-capacitor (SC) converters are compared to conventional two-level buck converters, and are shown analytically to have significantly reduced passive component size. Three converter prototypes are implemented, based on the presented methodology to experimentally validate the method as well as demonstrate the advantages of multilevel converters.

Original languageEnglish (US)
Title of host publication2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467368476
DOIs
StatePublished - Sep 1 2015
Event16th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2015 - Vancouver, Canada
Duration: Jul 12 2015Jul 15 2015

Publication series

Name2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015

Other

Other16th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2015
CountryCanada
CityVancouver
Period7/12/157/15/15

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Control and Systems Engineering
  • Modeling and Simulation

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    Lei, Y., Liu, W. C., & Pilawa Podgurski, R. C. N. (2015). An analytical method to evaluate flying capacitor multilevel converters and hybrid switched-capacitor converters for large voltage conversion ratios. In 2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015 [7236448] (2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/COMPEL.2015.7236448