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Multileg Interleaved Buck Converter for EV Charging: Discrete-Time Model and Direct Control Design

Author

Listed:
  • Stefania Cuoghi

    (School of Electrical Engineering, Computing and Mathematical Sciences, Curtin University, 6102 Bentley, Australia)

  • Riccardo Mandrioli

    (Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40121 Bologna, Italy)

  • Lorenzo Ntogramatzidis

    (School of Electrical Engineering, Computing and Mathematical Sciences, Curtin University, 6102 Bentley, Australia)

  • Grandi Gabriele

    (Department of Electrical, Electronic, and Information Engineering, University of Bologna, 40121 Bologna, Italy)

Abstract

This paper presents the modeling and the implementation of the digital control of a multileg interleaved DC-DC buck converter for electrical vehicle (EV) charging. Firstly, we derive a discrete averaged model of an n-leg interleaved buck converter (IBC). Secondly, we present a direct tuning procedure for one primary discrete PIDF (PID + filter) and multiple secondary PI controller. The objective of the control system is to regulate the current flow in each leg of the converter. This task is accomplished by introducing a novel control paradigm that simultaneously addresses two aims: on the one hand, the control scheme must guarantee an acceptable level of robustness under load variations; while on the other, an even distribution of power on each leg must be ensured at any operational condition. The proposed strategy hinges on a technique that combines simplicity and precision in the fulfillment of design frequency specifications. We use simulations and a digital signal processor (DSP) based experimental implementation of the design technique to validate the proposed methodology.

Suggested Citation

  • Stefania Cuoghi & Riccardo Mandrioli & Lorenzo Ntogramatzidis & Grandi Gabriele, 2020. "Multileg Interleaved Buck Converter for EV Charging: Discrete-Time Model and Direct Control Design," Energies, MDPI, vol. 13(2), pages 1-18, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:2:p:466-:d:310101
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    References listed on IDEAS

    as
    1. Stefania Cuoghi & Lorenzo Ntogramatzidis & Fabrizio Padula & Gabriele Grandi, 2018. "Direct Digital Design of PIDF Controllers with ComPlex Zeros for DC-DC Buck Converters," Energies, MDPI, vol. 12(1), pages 1-21, December.
    2. Sajib Chakraborty & Hai-Nam Vu & Mohammed Mahedi Hasan & Dai-Duong Tran & Mohamed El Baghdadi & Omar Hegazy, 2019. "DC-DC Converter Topologies for Electric Vehicles, Plug-in Hybrid Electric Vehicles and Fast Charging Stations: State of the Art and Future Trends," Energies, MDPI, vol. 12(8), pages 1-43, April.
    3. Il-Oun Lee & Jun-Young Lee, 2017. "A High-Power DC-DC Converter Topology for Battery Charging Applications," Energies, MDPI, vol. 10(7), pages 1-17, June.
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    Cited by:

    1. Salvatore Musumeci, 2023. "Energy Conversion Using Electronic Power Converters: Technologies and Applications," Energies, MDPI, vol. 16(8), pages 1-9, April.
    2. Armel Asongu Nkembi & Paolo Cova & Emilio Sacchi & Emanuele Coraggioso & Nicola Delmonte, 2023. "A Comprehensive Review of Power Converters for E-Mobility," Energies, MDPI, vol. 16(4), pages 1-28, February.
    3. Wei Wang & Gaoshuai Shen & Run Min & Qiaoling Tong & Qiao Zhang & Zhenglin Liu, 2020. "State Switched Discrete-Time Model and Digital Predictive Voltage Programmed Control for Buck Converters," Energies, MDPI, vol. 13(13), pages 1-21, July.
    4. Stefania Cuoghi & Riccardo Mandrioli & Lohith Kumar Pittala & Vincenzo Cirimele & Mattia Ricco, 2022. "Dual-Active-Bridge Model and Control for Supporting Fast Synthetic Inertial Action," Energies, MDPI, vol. 15(6), pages 1-19, March.

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