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Harmonics Analysis of Sliding Mode Controlled Boost Converters with Unmodelled Dynamics

  • School of Electrical Engineering and Automation, Harbin Institute of Technology

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

Abstract

The inevitable existence of harmonics in sliding mode (SM) controlled DC-DC boost converters with sensor unmodeled dynamics is investigated in this paper. A singular perturbation model of unmodeled dynamics is proposed by choosing the rise time of sensor as a perturbed parameter. The guaranteed stability conditions of SM controller and sensor output are deduced respectively, following an equivalent model transformation of the whole closed-loop system for convenient analysis. A Lyapunov-like function is further designed to prove the harmonics exist in a vicinity concerning the rise time of sensor. Simulation results validate the proposed scheme.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages389-393
Number of pages5
ISBN (Electronic)9781728148786
DOIs
StatePublished - Oct 2019
Externally publishedYes
Event45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 - Lisbon, Portugal
Duration: 14 Oct 201917 Oct 2019

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2019-October

Conference

Conference45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
Country/TerritoryPortugal
CityLisbon
Period14/10/1917/10/19

Keywords

  • boost converter
  • harmonics
  • singular perturbation
  • sliding mode control
  • unmodeled dynamics

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