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Centralized voltage control for distribution networks with embedded PV systems

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  • Cagnano, A.
  • De Tuglie, E.

Abstract

This paper proposes a centralized control methodology for optimizing nodal voltages of distribution networks by acting on the reactive power produced by PV-inverters. Control actions are centrally evaluated in real-time by solving a constrained dynamic optimization problem aimed at minimizing the voltage deviation from a reference value. The solution of this problem is obtained by adopting an algorithm operating in the continuous time domain based on a fast artificial dynamic system involving the sensitivity theory. By this approach the controller is able to promptly respond to any change in the system operating point, allowing its adoption in the continuous time domain. However, it must be considered that the injection of the reactive power provided by PV-inverters entails greater conduction and switching losses, causing a reduction in the active power output, thus implying less incomings. As a consequence, these additional operating costs have been analyzed and evaluated in order to establish an economic compensation mechanism able to guarantee fair reimbursement to PV generators engaged in this regulation service. Computer simulations performed on an MV distribution system, demonstrate the effectiveness of the proposed control scheme under different operating conditions, confirming its ability to control the network in real-time.

Suggested Citation

  • Cagnano, A. & De Tuglie, E., 2015. "Centralized voltage control for distribution networks with embedded PV systems," Renewable Energy, Elsevier, vol. 76(C), pages 173-185.
    • Handle: RePEc:eee:renene:v:76:y:2015:i:c:p:173-185
    DOI: 10.1016/j.renene.2014.11.015
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    References listed on IDEAS

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    1. Cagnano, A. & Torelli, F. & Alfonzetti, F. & De Tuglie, E., 2011. "Can PV plants provide a reactive power ancillary service? A treat offered by an on-line controller," Renewable Energy, Elsevier, vol. 36(3), pages 1047-1052.
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    Cited by:

    1. Cagnano, A. & De Tuglie, E., 2016. "A decentralized voltage controller involving PV generators based on Lyapunov theory," Renewable Energy, Elsevier, vol. 86(C), pages 664-674.
    2. Pillai, Gobind & Putrus, Ghanim & Pearsall, Nicola & Georgitsioti, Tatiani, 2017. "The effect of distribution network on the annual energy yield and economic performance of residential PV systems under high penetration," Renewable Energy, Elsevier, vol. 108(C), pages 144-155.
    3. Fco. Javier Zarco-Soto & Pedro J. Zarco-Periñán & Jose L. Martínez-Ramos, 2021. "Centralized Control of Distribution Networks with High Penetration of Renewable Energies," Energies, MDPI, vol. 14(14), pages 1-13, July.
    4. Stringer, Naomi & Haghdadi, Navid & Bruce, Anna & MacGill, Iain, 2021. "Fair consumer outcomes in the balance: Data driven analysis of distributed PV curtailment," Renewable Energy, Elsevier, vol. 173(C), pages 972-986.
    5. Rekik, Mouna & Abdelkafi, Achraf & Krichen, Lotfi, 2015. "A micro-grid ensuring multi-objective control strategy of a power electrical system for quality improvement," Energy, Elsevier, vol. 88(C), pages 351-363.
    6. Alessia Cagnano & Enrico De Tuglie & Marco Bronzini, 2018. "Multiarea Voltage Controller for Active Distribution Networks," Energies, MDPI, vol. 11(3), pages 1-20, March.
    7. Mahmud, Nasif & Zahedi, A., 2016. "Review of control strategies for voltage regulation of the smart distribution network with high penetration of renewable distributed generation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 64(C), pages 582-595.
    8. Ranaweera, Iromi & Midtgård, Ole-Morten & Korpås, Magnus, 2017. "Distributed control scheme for residential battery energy storage units coupled with PV systems," Renewable Energy, Elsevier, vol. 113(C), pages 1099-1110.
    9. Ahmed M. Agwa & Attia A. El-Fergany, 2023. "Protective Relaying Coordination in Power Systems Comprising Renewable Sources: Challenges and Future Insights," Sustainability, MDPI, vol. 15(9), pages 1-25, April.
    10. Isa, Normazlina Mat & Tan, Chee Wei & Yatim, A.H.M., 2018. "A comprehensive review of cogeneration system in a microgrid: A perspective from architecture and operating system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P2), pages 2236-2263.
    11. Naderi, Yahya & Hosseini, Seyed Hossein & Ghassem Zadeh, Saeid & Mohammadi-Ivatloo, Behnam & Vasquez, Juan C. & Guerrero, Josep M., 2018. "An overview of power quality enhancement techniques applied to distributed generation in electrical distribution networks," Renewable and Sustainable Energy Reviews, Elsevier, vol. 93(C), pages 201-214.
    12. Murray, William & Adonis, Marco & Raji, Atanda, 2021. "Voltage control in future electrical distribution networks," Renewable and Sustainable Energy Reviews, Elsevier, vol. 146(C).
    13. Huda, A.S.N. & Živanović, R., 2017. "Large-scale integration of distributed generation into distribution networks: Study objectives, review of models and computational tools," Renewable and Sustainable Energy Reviews, Elsevier, vol. 76(C), pages 974-988.
    14. Ranaweera, Iromi & Midtgård, Ole-Morten, 2016. "Optimization of operational cost for a grid-supporting PV system with battery storage," Renewable Energy, Elsevier, vol. 88(C), pages 262-272.

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