A closed-loop digital control method for power converters by means of local average

R. Pindado*, J. Pou, C. Jaén

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A method oriented to the discrete time closed loop predictive-adaptative control, based on local average techniques and applied to static power converters is presented in this paper. The basis consists in the generation of a converter averaged model in state-space form. This is the starting point to do the difference equation formulation that will be later transformed in the control algorithm. The coefficients of the model are periodically updated by means of real state variables measurements. Doing this procedure, an excellent transitory response is obtained, and also the system presents a remarkable robustness against disturbances and strong load changes. The method is applied to a DC-DC buck-boost converter with pulse-width modulation (PWM) and the paper finishes showing some comparative results obtained by PSPICE simulation.

Original languageEnglish
Pages (from-to)131-134
Number of pages4
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number416 PART 1
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus Subject Areas

  • Aerospace Engineering
  • Space and Planetary Science

Keywords

  • Local average
  • Power static converters
  • Predictive-adaptative control

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