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PV Module-Level CHB Inverter with Integrated Battery Energy Storage System

Author

Listed:
  • Chiara Sirico

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

  • Remus Teodorescu

    (Department of Energy Technology, Aalborg University, Pontoppidanstraede 111, 9220 Aalborg, Denmark)

  • Dezso Séra

    (Department of Energy Technology, Aalborg University, Pontoppidanstraede 111, 9220 Aalborg, Denmark)

  • 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)

  • Diego Iannuzzi

    (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)

Abstract

In this paper, a photovoltaic (PV) module-level Cascaded H-Bridge (CHB) inverter with an integrated Battery Energy Storage System (BESS) is proposed. The advantages and drawbacks of the CHB circuit architecture in distributed PV generation systems are highlighted. The main benefits are related to the higher granularity of the PV power control, which mitigates mismatch effects, thus increasing the power harvesting. Nevertheless, heavy unbalanced configurations due to the intermittent nature of PV sources need to be properly addressed. In order to smooth the PV fluctuations, a Battery Energy Storage System is used to provide both an energy buffer and coordination of power supply and demand to obtain a flat profile of the output power. In particular, by exploiting the inherent modularity of the conversion circuit, a distributed storage system is also implemented by splitting the battery into smaller units each of which represents the backup module of a single power cell of the PV CHB. The proposed design and control strategy allows overcoming the operating limits of PV CHB inverter. Simulation results, carried out on a single-phase nineteen-level PV CHB inverter, evidence the effectiveness of the proposed design and control approach to minimize the adverse impact of deep mismatch conditions, thus enabling continuous power output by compensating PV power fluctuations.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:23:p:4601-:d:293722
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    References listed on IDEAS

    as
    1. Wang Mao & Xing Zhang & Yuhua Hu & Tao Zhao & Fusheng Wang & Fei Li & Renxian Cao, 2019. "A Research on Cascaded H-Bridge Module Level Photovoltaic Inverter Based on a Switching Modulation Strategy," Energies, MDPI, vol. 12(10), pages 1-17, May.
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    Cited by:

    1. 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.
    2. 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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