Passivity-based control of buck converters with constant-power loads

A. Kwasinski, P. T. Krein

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

Abstract

This paper studies the control of buck converters subjected to constant-power loads using a passivity-based technique. This technique allows for global analysis and avoids the limitations present in small-signal-based techniques. Passivity-based control in this application leads to a systematic derivation of a linear proportional-differential controller. It is also proved that the equilibrium point is only locally stable due to the infeasibility of duty ratio values larger than unity. The paper presents a method to obtain the region of attraction and shows that this region is not affected by controller gains. Experimental work is included to verify the analysis.

Original languageEnglish (US)
Title of host publicationPESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
Pages259-265
Number of pages7
DOIs
StatePublished - 2007
EventPESC 07 - IEEE 38th Annual Power Electronics Specialists Conference - Orlando, FL, United States
Duration: Jun 17 2007Jun 21 2007

Publication series

NamePESC Record - IEEE Annual Power Electronics Specialists Conference
ISSN (Print)0275-9306

Other

OtherPESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
Country/TerritoryUnited States
CityOrlando, FL
Period6/17/076/21/07

ASJC Scopus subject areas

  • Modeling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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