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Inverter Operation Mode of a PhotoVoltaic Cascaded H-Bridge Battery Charger

Author

Listed:
  • Marino Coppola

    (Department of Electrical Engineering and Information Technologies, University of Napoli Federico II, Via Claudio 21, 80125 Napoli, Italy)

  • Pierluigi Guerriero

    (Department of Electrical Engineering and Information Technologies, University of Napoli Federico II, Via Claudio 21, 80125 Napoli, Italy)

  • Adolfo Dannier

    (Department of Electrical Engineering and Information Technologies, University of Napoli Federico II, Via Claudio 21, 80125 Napoli, Italy)

  • Santolo Daliento

    (Department of Electrical Engineering and Information Technologies, University of Napoli Federico II, Via Claudio 21, 80125 Napoli, Italy)

  • Andrea Del Pizzo

    (Department of Electrical Engineering and Information Technologies, University of Napoli Federico II, Via Claudio 21, 80125 Napoli, Italy)

Abstract

The paper deals with a grid-connected single-phase battery charger integrated with photovoltaic generators (PVGs). The circuit topology consists of a multilevel architecture based on a Cascaded H-Bridge (CHB) rectifier. Its main task is to charge the batteries, primarily from the PVGs, by also assuring to keep their state-of-charge (SOC) balanced. Nevertheless, when the battery SOC overcomes a predefined upper limit, beyond which the charging process could be interrupted, the available PV power can no longer be transferred to the batteries. Therefore, to avoid an undesired curtailment of PV power production, this latter can be supplied to the grid by inverting the system operation. The paper shows how to achieve this result by implementing a dedicated control action based on a multi-step procedure. Numerical investigations are carried out on a 19-level CHB converter implemented in the PLECS environment to validate the feasibility and effectiveness of the proposed control technique.

Suggested Citation

  • Marino Coppola & Pierluigi Guerriero & Adolfo Dannier & Santolo Daliento & Andrea Del Pizzo, 2023. "Inverter Operation Mode of a PhotoVoltaic Cascaded H-Bridge Battery Charger," Energies, MDPI, vol. 16(13), pages 1-15, June.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:13:p:4972-:d:1180174
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    References listed on IDEAS

    as
    1. Chiara Sirico & Remus Teodorescu & Dezso Séra & Marino Coppola & Pierluigi Guerriero & Diego Iannuzzi & Adolfo Dannier, 2019. "PV Module-Level CHB Inverter with Integrated Battery Energy Storage System," Energies, MDPI, vol. 12(23), pages 1-20, December.
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    1. Marino Coppola & Pierluigi Guerriero & Adolfo Dannier & Santolo Daliento & Davide Lauria & Andrea Del Pizzo, 2020. "Control of a Fault-Tolerant Photovoltaic Energy Converter in Island Operation," Energies, MDPI, vol. 13(12), pages 1-18, June.

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