Energies (May 2024)

A New Feed-Forward Control for Dynamics Improvement in a Dual-Input DC–DC Converter for Hybrid Vehicle Applications

  • Alessandro Benevieri,
  • Lorenzo Carbone,
  • Simone Cosso,
  • Mario Marchesoni,
  • Massimiliano Passalacqua,
  • Stefano Savio,
  • Luis Vaccaro

DOI
https://doi.org/10.3390/en17092170
Journal volume & issue
Vol. 17, no. 9
p. 2170

Abstract

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In this study, a double-input single-output bidirectional DC–DC converter is considered. This particular architecture allows less switches to be used than a conventional solution. A new feed-forward current control for this DC–DC converter with three switches is presented in this paper. The modulation technique proposed in the literature for the aforementioned converter leads to a consistent loss reduction at low load, exploiting the DCM. As a drawback, when using this control strategy, the dynamic response worsens significantly. To speed up the control, a feed-forward approach is designed and implemented using a simplified converter electrical model. The proposed strategy is compared with the conventional PI controller, and it is validated and verified through simulation results in the MATLAB/Simulink/PLECS environment and through experimental tests using a converter prototype.

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