Derivation of Small-Signal Model of Boost-SEPIC Interleaved Converter Based on PWM Switch Model

Thien Dung Tran, Honnyong Cha, Van Dai Bui, Chan Viet Nguyen

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

2 Scopus citations

Abstract

Small-signal model is essential in ensuring the quality and performance of dc-dc converters. An insight into dynamics is a fundamental requirement to select and design the controller of converters correctly. The dc-dc boost-SEPIC interleaved (BSI) converter has the potential for wide application but the small-signal model has not been thoroughly studied. This paper presents a method to establish the small-signal model of the high-order BSI converter based on the circuit averaging and averaged switch techniques. The transfer function model obtained in factorized form with three complex poles, two complex zeros, and one real zero makes it convenient to analyze characteristics and evaluate the impact of components and working conditions on the dynamic of the converter. The obtained model is verified by simulation and experimental results on the frequency domain.

Original languageEnglish
Title of host publicationProceedings - 2023 International Symposium on Electrical and Electronics Engineering, ISEE 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages185-190
Number of pages6
ISBN (Electronic)9798350315486
DOIs
StatePublished - 2023
Event2023 International Symposium on Electrical and Electronics Engineering, ISEE 2023 - Ho Chi Minh City, Viet Nam
Duration: 19 Oct 202320 Oct 2023

Publication series

NameProceedings - 2023 International Symposium on Electrical and Electronics Engineering, ISEE 2023

Conference

Conference2023 International Symposium on Electrical and Electronics Engineering, ISEE 2023
Country/TerritoryViet Nam
CityHo Chi Minh City
Period19/10/2320/10/23

Keywords

  • BSI converter
  • average model
  • control
  • dc-dc converter
  • small-signal model

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