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Voltage Control in Low-Voltage Grids Using Distributed Photovoltaic Converters and Centralized Devices

Abstract : This paper studies the application of distributed and centralized solutions for voltage control in low voltage (LV) grids with high photovoltaic (PV) penetration. In traditional LV grids, the coordination of distributed PV converters and a centralized device would require massive investments in new communication and control infrastructures. The alternative of exploiting distributed PV converters for voltage control is discussed, showing that it can help to stabilize the voltage in the grid connection points also without coordination between them and/or with a centralized unit. The goal of this paper is to investigate how the setup of the voltage controllers inside PV inverters affects the operation of these controllers taking into account the limits for reactive power injection. In addition, the interaction of distributed PV converters with centralized devices (static var compensators and on load tap changers) is analyzed to assess whether additional benefits may come in these cases.
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Submitted on : Monday, October 19, 2020 - 10:49:10 PM
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Alessandro Ciocia, Valentin A. Boicea, Gianfranco Chicco, Paolo Di Leo, Andrea Mazza, et al.. Voltage Control in Low-Voltage Grids Using Distributed Photovoltaic Converters and Centralized Devices. IEEE Transactions on Industry Applications, Institute of Electrical and Electronics Engineers, 2019, 55 (1), pp.225-237. ⟨10.1109/TIA.2018.2869104⟩. ⟨hal-02350955⟩

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