Model Predictive Control Method with Auto-Tuning Weighting Factor for Bidirectional DC-DC Battery Chargers

Naki Guler, Sertac Bayhan, Hasan Komurcugil

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper proposes a model predictive control (MPC) method with an auto-tuning weighting factor for bidirectional DC-DC battery chargers. The reference current value of DC-DC converter is desired as a DC quantity by neglecting the inductor current ripple. Therefore, MPC changes the switch position to obtain zero error (between reference and predicted current values). Hence, excessive switching frequency occurs. The weighting factor is used to prevent excessive switching frequency in MPC methods devoted to controlling DC-DC converters. The relationship between the weighting factor and inductor current ripple is clarified for bidirectional DC-DC converters. Thus, the switching frequency is kept approximately constant by using the proposed auto-tuning weighting factor. The proposed approach is validated by simulation studies performed on MATLAB/Simulink platform. The results reveal that the proposed auto-tuning strategy significantly reduces the variations in switching frequency that occur under variations in the current reference and input voltage.

Original languageEnglish
Title of host publicationCPE-POWERENG 2024 - 18th International Conference on Compatibility, Power Electronics and Power Engineering, Proceedings
EditorsKalina Detka, Krzysztof Gorecki, Pawel Gorecki
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350318265
DOIs
Publication statusPublished - 26 Jun 2024
Event18th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2024 - Gdynia, Poland
Duration: 24 Jun 202426 Jun 2024

Publication series

NameCPE-POWERENG 2024 - 18th International Conference on Compatibility, Power Electronics and Power Engineering, Proceedings

Conference

Conference18th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2024
Country/TerritoryPoland
CityGdynia
Period24/06/2426/06/24

Keywords

  • Battery charger
  • Current control
  • Mpc
  • Weighting factor tuning

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