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Stability and Periodicity of Discrete SM Controlled Buck Converter with Parasitic Parameters

  • School of Astronautics, Harbin Institute of Technology
  • School of Electrical Engineering and Automation, Harbin Institute of Technology
  • China Aerospace Science and Technology Corporation

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

Abstract

This paper investigates the problems of stability and periodicity for the discrete sliding mode (SM) controlled DC-DC buck converters subject to parasitic parameters. The loss resistance of power switch, conduction voltage and conduction resistance of diode, equivalent series resistance of inductor are first considered and modeled for buck converters. After the discretization of SM controlled buck converter system, the stability condition is deduced, proving that there exist a attractive region in phase plane which affected by the sampling time. The sufficient and necessary condition of periodicity is given and the influence of parasitic parameters on dynamic trajectory is analyzed and further it is proved not affect the system periodicity under some restricted conditions. Simulations validate the proposed research.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages2020-2025
Number of pages6
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

  • buck converter
  • discretization
  • periodicity
  • sliding mode control
  • stability

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