Fuzzy self-tuning PI controller for phase-shifted series resonant converters

A.A. Aboushady, K.H. Ahmed, S.J. Finney, B.W. Williams

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Abstract

A linearized model of the phase-shifted series resonant converter is necessary for closed loop design. With fixed PI control design, the converter does not have good disturbance rejection capability and cannot always cope with a wide range of uncertainties. In this paper, a PI self-tuning mechanism based on a fuzzy logic scheme is proposed. It corrects the PI gains, initially designed using small-signal modeling, to improve converter dynamic response and disturbance rejection. The algorithm is based on continuous change/adaptation of the PI gains until best dynamic response is achieved. Simulation results compare responses for the PI fixed parameters with the fuzzy-adapted controller gains under different disturbance conditions.
Original languageEnglish
Title of host publication2011 International Conference on Power Engineering, Energy and Electrical Drives
PublisherIEEE
Number of pages6
ISBN (Print)978-1-4244-9845-1
DOIs
Publication statusPublished - 2011

Keywords

  • fuzzy logic
  • voltage control
  • mathematical model
  • heuristic algorithms
  • algorithm design and analysis
  • control systems
  • fuzzy control

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    Aboushady, A. A., Ahmed, K. H., Finney, S. J., & Williams, B. W. (2011). Fuzzy self-tuning PI controller for phase-shifted series resonant converters. In 2011 International Conference on Power Engineering, Energy and Electrical Drives IEEE. https://doi.org/10.1109/PowerEng.2011.6036513