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Reactive Power Compensation with PV Inverters for System Loss Reduction

Author

Listed:
  • Saša Vlahinić

    (Faculty of Engineering, University of Rijeka, 51000 Rijeka, Croatia)

  • Dubravko Franković

    (Faculty of Engineering, University of Rijeka, 51000 Rijeka, Croatia)

  • Vitomir Komen

    (HEP—Distribution system operator, Elektroprimorje, 51000 Rijeka, Croatia)

  • Anamarija Antonić

    (HOPS–Croatian transmission system operator, 51211 Matulji, Croatia)

Abstract

Photovoltaic (PV) system inverters usually operate at unitary power factor, injecting only active power into the system. Recently, many studies have been done analyzing potential benefits of reactive power provisioning, such as voltage regulation, congestion mitigation and loss reduction. This article analyzes possibilities for loss reduction in a typical medium voltage distribution system. Losses in the system are compared to the losses in the PV inverters. Different load conditions and PV penetration levels are considered and for each scenario various active power generation by PV inverters are taken into account, together with allowable levels of reactive power provisioning. As far as loss reduction is considered, there is very small number of PV inverters operating conditions for which positive energy balance exists. For low and medium load levels, there is no practical possibility for loss reduction. For high loading levels and higher PV penetration specific reactive savings, due to reactive power provisioning, increase and become bigger than additional losses in PV inverters, but for a very limited range of power factors.

Suggested Citation

  • Saša Vlahinić & Dubravko Franković & Vitomir Komen & Anamarija Antonić, 2019. "Reactive Power Compensation with PV Inverters for System Loss Reduction," Energies, MDPI, vol. 12(21), pages 1-17, October.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:21:p:4062-:d:280085
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    References listed on IDEAS

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    4. Hua Li & Che Wen & Kuei-Hsiang Chao & Ling-Ling Li, 2017. "Research on Inverter Integrated Reactive Power Control Strategy in the Grid-Connected PV Systems," Energies, MDPI, vol. 10(7), pages 1-21, July.
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    Cited by:

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    2. Paolo Tenti & Tommaso Caldognetto, 2023. "Integration of Local and Central Control Empowers Cooperation among Prosumers and Distributors towards Safe, Efficient, and Cost-Effective Operation of Microgrids," Energies, MDPI, vol. 16(5), pages 1-23, February.
    3. Zbigniew Kłosowski & Łukasz Mazur, 2023. "Influence of the Type of Receiver on Electrical Energy Losses in Power Grids," Energies, MDPI, vol. 16(15), pages 1-22, July.
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    5. Nevena Srećković & Miran Rošer & Gorazd Štumberger, 2021. "Utilization of Active Distribution Network Elements for Optimization of a Distribution Network Operation," Energies, MDPI, vol. 14(12), pages 1-17, June.

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