Sliding mode controller applied to PWM DC-DC converters based on an averaged model

Carles Jaen*, Josep Pou, Rafael Findado, Vicenç Sala, Jordi Zaragoza

*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

A modeling methodology applied to PWM DC-DC converters is presented in tills paper. Parasitic resistors have been considered in inductor and power supply. A generalised equivalent circuit based on averaged variables is obtained for the basic structures of DC-DC converters. This circuit and the associated model are valid for continuous conduction mode and discontinuous conduction mode. This contribution contains expressions to detect changes of the converter operation mode and to estimate the value of the diode duty cycle operating under discontinuous conduction mode. A sliding mode controller for the regulation of the output voltage has been designed in terms of averaged state variables and converter parameters. The procedure is applied to a 100W Buck converter prototype. Simulations and experimental results are presented.

Original languageEnglish
Title of host publication5th International Conference-Workshop Compatibility in Power Electronics, CPE 2007
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event5th International Conference-Workshop Compatibility in Power Electronics, CPE 2007 - Gdansk, Poland
Duration: May 29 2007Jun 1 2007

Publication series

Name5th International Conference-Workshop Compatibility in Power Electronics, CPE 2007

Conference

Conference5th International Conference-Workshop Compatibility in Power Electronics, CPE 2007
Country/TerritoryPoland
CityGdansk
Period5/29/076/1/07

ASJC Scopus Subject Areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Keywords

  • Control systems
  • Converter control
  • Modeling
  • Pulse width modulation converters
  • Variable structure systems

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