Active capacitor voltage balancing control for three-level flying capacitor boost converter

Hung-Chi Chen, Che Yu Lu, Wei Hsiang Lien

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

8 Scopus citations

Abstract

The average-behavior circuit model of three-level flying capacitor boost converter (FCBC) is presented in this paper. The small-signal transfer functions of three-level FCBC are first obtained that are including two control signals as the input signals and including the output voltage and the capacitor voltage as the output signals. Besides, the voltage regulating controller is a proportional-integral (PI-type) controller and the voltage balancing controller is a proportional (P-type) controller. Based on the small-signal analysis of three-level FCBC, the closed-loop transfer functions can be obtained and the controller parameters can be selected as well. All the algorithms are implemented in a Field Programmable Gate Array (FPGA) chip. The simulation and experimental results validate the capacitor voltage balancing capability of the proposed method.

Original languageEnglish
Title of host publicationAPEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages127-132
Number of pages6
ISBN (Electronic)9781538611807
DOIs
StatePublished - 18 Apr 2018
Event33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018 - San Antonio, United States
Duration: 4 Mar 20188 Mar 2018

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume2018-March

Conference

Conference33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
CountryUnited States
CitySan Antonio
Period4/03/188/03/18

Keywords

  • Active voltage balancing control
  • Field programmable gate array (FPGA)
  • Flying capacitor boost converter (FCBC)

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