IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2023i4p1612-d1059281.html
   My bibliography  Save this article

Modeling and Experimental Validation of a Voltage-Controlled Split-Pi Converter Interfacing a High-Voltage ESS with a DC Microgrid

Author

Listed:
  • Massimiliano Luna

    (Consiglio Nazionale delle Ricerche (CNR), Istituto di Ingegneria del Mare (INM), Via Ugo La Malfa 153, 90146 Palermo, Italy)

  • Antonino Sferlazza

    (Dipartimento di Ingegneria (DI), Università degli Studi di Palermo, Viale delle Scienze ed. 10, 90128 Palermo, Italy)

  • Angelo Accetta

    (Consiglio Nazionale delle Ricerche (CNR), Istituto di Ingegneria del Mare (INM), Via Ugo La Malfa 153, 90146 Palermo, Italy)

  • Maria Carmela Di Piazza

    (Consiglio Nazionale delle Ricerche (CNR), Istituto di Ingegneria del Mare (INM), Via Ugo La Malfa 153, 90146 Palermo, Italy)

  • Giuseppe La Tona

    (Consiglio Nazionale delle Ricerche (CNR), Istituto di Ingegneria del Mare (INM), Via Ugo La Malfa 153, 90146 Palermo, Italy)

  • Marcello Pucci

    (Consiglio Nazionale delle Ricerche (CNR), Istituto di Ingegneria del Mare (INM), Via Ugo La Malfa 153, 90146 Palermo, Italy)

Abstract

The Split-pi converter can suitably interface an energy storage system (ESS) with a DC microgrid when galvanic isolation is not needed. Usually, the ESS voltage is lower than the grid-side voltage. However, limitations in terms of the ESS current make the use of a high-voltage ESS unavoidable when high power levels are required. In such cases, the ESS voltage can be higher than the microgrid voltage, especially with low microgrid voltages such as 48 V. Despite its bidirectionality and symmetry, the Split-pi exhibits a completely different dynamic behavior if its input and output ports are exchanged. Thus, the present work aims to model the Split-pi converter operating with an ESS voltage higher than the grid-side voltage in three typical microgrid scenarios where the controlled variable is the converter’s output voltage. The devised state-space model considers the parasitic elements and the correct load model for each scenario. Furthermore, it is shown that the presence of the input LC filter can make the design of the loop controllers more complicated than in the case of a lower ESS voltage than the grid-side voltage. Finally, the study is validated through simulations and experimental tests on a lab prototype, and a robustness analysis is performed.

Suggested Citation

  • Massimiliano Luna & Antonino Sferlazza & Angelo Accetta & Maria Carmela Di Piazza & Giuseppe La Tona & Marcello Pucci, 2023. "Modeling and Experimental Validation of a Voltage-Controlled Split-Pi Converter Interfacing a High-Voltage ESS with a DC Microgrid," Energies, MDPI, vol. 16(4), pages 1-23, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:4:p:1612-:d:1059281
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/4/1612/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/16/4/1612/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Massimiliano Luna & Antonino Sferlazza & Angelo Accetta & Maria Carmela Di Piazza & Giuseppe La Tona & Marcello Pucci, 2021. "Modeling and Performance Assessment of the Split-Pi Used as a Storage Converter in All the Possible DC Microgrid Scenarios. Part II: Simulation and Experimental Results," Energies, MDPI, vol. 14(18), pages 1-22, September.
    2. Geethanjali Subramaniyan & Vijayakumar Krishnasamy & Jagabar Sathik Mohammed, 2022. "Modeling and Design of Split-Pi Converter," Energies, MDPI, vol. 15(15), pages 1-23, August.
    3. Massimiliano Luna & Antonino Sferlazza & Angelo Accetta & Maria Carmela Di Piazza & Giuseppe La Tona & Marcello Pucci, 2021. "Modeling and Performance Assessment of the Split-Pi Used as a Storage Converter in All the Possible DC Microgrid Scenarios. Part I: Theoretical Analysis," Energies, MDPI, vol. 14(16), pages 1-16, August.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lin Wang & Anke Xue, 2021. "Equivalent Modeling of Microgrids Based on Optimized Broad Learning System," Energies, MDPI, vol. 14(23), pages 1-11, November.
    2. Massimiliano Luna, 2022. "High-Efficiency and High-Performance Power Electronics for Power Grids and Electrical Drives," Energies, MDPI, vol. 15(16), pages 1-6, August.
    3. Geethanjali Subramaniyan & Vijayakumar Krishnasamy & Jagabar Sathik Mohammed, 2022. "Modeling and Design of Split-Pi Converter," Energies, MDPI, vol. 15(15), pages 1-23, August.
    4. Massimiliano Luna & Antonino Sferlazza & Angelo Accetta & Maria Carmela Di Piazza & Giuseppe La Tona & Marcello Pucci, 2021. "Modeling and Performance Assessment of the Split-Pi Used as a Storage Converter in All the Possible DC Microgrid Scenarios. Part II: Simulation and Experimental Results," Energies, MDPI, vol. 14(18), pages 1-22, September.

    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:4:p:1612-:d:1059281. 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.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with 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.