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    Voltage Unbalance Mitigation in Low Voltage Distribution Networks using Time Series Three-Phase Optimal Power Flow

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    Publication date
    2021
    Author
    Al-Ja'afreh, M.A.A.
    Mokryani, Geev
    Keyword
    Low voltage distribution networks
    Current injection method
    Voltage unbalanced
    Three-phase optimal power flow
    Peer-Reviewed
    Yes
    Open Access status
    Not Open Access
    
    Metadata
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    Abstract
    Due to high penetration of single-phase Photovoltaic (PV) cells into low voltage (LV) distribution networks, several impacts such as voltage unbalance, voltage rise, power losses, reverse power flow arise which leads to operational constraints violation in the network. In this paper, a time series Three Phase Optimal Power Flow (TPOPF) method is proposed to minimize the voltage unbalance in LV distribution networks with high penetration of residential PVs. TPOPF problem is formulated using the current injection method in which the PVs are modelled via a time-varying PV power profile with active and reactive power control. The proposed method is validated on a real LV distribution feeder. The results show that the reactive power management of the PVs helps mitigate the voltage unbalance significantly. Moreover, the voltage unbalance index reduced significantly compared to the case without voltage unbalance minimisation.
    URI
    http://hdl.handle.net/10454/18629
    Version
    No full-text in the repository
    Citation
    Al-Ja'afreh MAA and Mokryani G (2021) Voltage Unbalance Mitigation in Low Voltage Distribution Networks using Time Series Three-Phase Optimal Power Flow. 56th International Universities Power Engineering Conference (UPEC) 31 Aug - 3 Sep 2021. Middlesbrough, UK.
    Link to publisher’s version
    https://doi.org/10.1109/UPEC50034.2021.9548248
    Type
    Conference paper
    Collections
    Engineering and Informatics Publications

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