IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2023i5p2098-d1075683.html
   My bibliography  Save this article

Common DC-Link Capacitor Harmonic Current Minimization for Cascaded Converters by Optimized Phase-Shift Modulation

Author

Listed:
  • Xuanyi Zhou

    (Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham Ningbo China, Ningbo 315104, China)

  • Wei Juin Choy

    (Power Electronics, Machines and Control Group, University of Nottingham, Nottingham NG7 2RD, UK)

  • Abraham M. Alcaide

    (Electronic Engineering Department, Universidad de Sevilla, 41004 Seville, Spain)

  • Shuo Wang

    (Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham Ningbo China, Ningbo 315104, China)

  • Sandro Guenter

    (Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham Ningbo China, Ningbo 315104, China)

  • Jose I. Leon

    (Electronic Engineering Department, Universidad de Sevilla, 41004 Seville, Spain
    Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)

  • Vito Giuseppe Monopoli

    (Department of Electrical and Information Engineering, Politecnico di Bari, 70126 Bari, Italy)

  • Leopoldo G. Franquelo

    (Electronic Engineering Department, Universidad de Sevilla, 41004 Seville, Spain
    Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)

  • Marco Liserre

    (Power Electronics Department, Christian-Albrechts Universität zu Kiel, 24118 Kiel, Germany)

  • Michael Galea

    (Department of Industrial Electrical Power Conversion, University of Malta, MSD 2080 Msida, Malta)

  • Chris Gerada

    (Power Electronics, Machines and Control Group, University of Nottingham, Nottingham NG7 2RD, UK)

  • Giampaolo Buticchi

    (Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, Department of Electrical and Electronic Engineering, University of Nottingham Ningbo China, Ningbo 315104, China)

Abstract

This paper investigates the influence of a constant carrier phase shift on the DC-link capacitor harmonic current of cascaded converters used in fuel-cell and mild-hybrid electric vehicles. In these applications, a DC-DC converter can be adopted between the battery and the motor drive inverter in a cascaded structure, where the two converters share the same DC-link. Since the DC-link capacitor of such a system represents a critical component, the optimization of the converter operation to limit the current stress and extend the lifetime of the capacitor is an primary objective. This paper proposes the use of a carrier phase shift between the modulations of the two converters in order to minimize the harmonic current of the DC-link capacitor. By harmonic analysis, an optimal carrier phase shift can be derived depending on the converter configuration. Analytical results are presented and validated by hardware-in-the-loop experiments. The findings show that the pulse width modulation carrier phase shift between the interleaved boost converter and the voltage source motor drive inverter has a significant influence on the DC-link capacitor current and thus on its lifetime. A case study with two-cell and three-cell interleaved boost converters shows a possible DC-link capacitor lifetime extension of up to 390%.

Suggested Citation

  • Xuanyi Zhou & Wei Juin Choy & Abraham M. Alcaide & Shuo Wang & Sandro Guenter & Jose I. Leon & Vito Giuseppe Monopoli & Leopoldo G. Franquelo & Marco Liserre & Michael Galea & Chris Gerada & Giampaolo, 2023. "Common DC-Link Capacitor Harmonic Current Minimization for Cascaded Converters by Optimized Phase-Shift Modulation," Energies, MDPI, vol. 16(5), pages 1-15, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2098-:d:1075683
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/5/2098/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/16/5/2098/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2098-:d:1075683. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.