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Community energy storage for neutral voltage rise mitigation in four-wire multigrounded LV feeders with unbalanced solar PV allocation

Journal Article


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Abstract


  • The traditional neutral voltage problem in

    low-voltage (LV) four-wire multigrounded distribution networks

    can be aggravated due to an unbalanced allocation of one-phase

    photovoltaic (PV) units. Inherent limitations restrict the performance

    of the traditional strategies to mitigate the combined

    effect of load and PV unbalance. To overcome the shortcoming

    of traditional approaches, a new dynamic mitigation approach

    using community energy storage (CES) is proposed in this paper.

    A power balancing algorithm is developed to perform the balancing

    operation while minimizing power drawn from the CES.

    A charge/discharge control strategy is developed that will continuously

    balance and dynamically adjust the power exchange

    with the grid in a real time, and mitigate the neutral current

    and neutral voltage rise. To investigate the applicability of the

    proposed approach under physical time delays associated with

    battery and PV systems, a suitable dynamic model is developed.

    An Australian LV distribution system is used to verify the proposed

    approach under daylong variations of load and PV, and

    also during short-term variations of PV output caused by cloud

    passing.

Publication Date


  • 2015

Citation


  • M. J E. Alam, K. M. Muttaqi & D. Sutanto, "Community energy storage for neutral voltage rise mitigation in four-wire multigrounded LV feeders with unbalanced solar PV allocation," IEEE Transactions on Smart Grid, vol. 6, (6) pp. 2845-2855, 2015.

Scopus Eid


  • 2-s2.0-84960457327

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5773&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4746

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 2845

End Page


  • 2855

Volume


  • 6

Issue


  • 6

Place Of Publication


  • United States

Abstract


  • The traditional neutral voltage problem in

    low-voltage (LV) four-wire multigrounded distribution networks

    can be aggravated due to an unbalanced allocation of one-phase

    photovoltaic (PV) units. Inherent limitations restrict the performance

    of the traditional strategies to mitigate the combined

    effect of load and PV unbalance. To overcome the shortcoming

    of traditional approaches, a new dynamic mitigation approach

    using community energy storage (CES) is proposed in this paper.

    A power balancing algorithm is developed to perform the balancing

    operation while minimizing power drawn from the CES.

    A charge/discharge control strategy is developed that will continuously

    balance and dynamically adjust the power exchange

    with the grid in a real time, and mitigate the neutral current

    and neutral voltage rise. To investigate the applicability of the

    proposed approach under physical time delays associated with

    battery and PV systems, a suitable dynamic model is developed.

    An Australian LV distribution system is used to verify the proposed

    approach under daylong variations of load and PV, and

    also during short-term variations of PV output caused by cloud

    passing.

Publication Date


  • 2015

Citation


  • M. J E. Alam, K. M. Muttaqi & D. Sutanto, "Community energy storage for neutral voltage rise mitigation in four-wire multigrounded LV feeders with unbalanced solar PV allocation," IEEE Transactions on Smart Grid, vol. 6, (6) pp. 2845-2855, 2015.

Scopus Eid


  • 2-s2.0-84960457327

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=5773&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/4746

Has Global Citation Frequency


Number Of Pages


  • 10

Start Page


  • 2845

End Page


  • 2855

Volume


  • 6

Issue


  • 6

Place Of Publication


  • United States