Coordinated two-stage volt/var management in distribution networks

Mokgonyana, Lesiba and Zhang, Jiangfeng and Zhang, Lijun and Xia, Xiaohua (2016) Coordinated two-stage volt/var management in distribution networks. Electric Power Systems Research, 141. pp. 157-164. ISSN 0378-7796 (https://doi.org/10.1016/j.epsr.2016.07.012)

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Abstract

This paper investigates daily volt/var control in distribution networks using feeder capacitors as well as substation capacitors paired with on-load tap changers. A twostage coordinated approach is proposed. Firstly, the feeder capacitor dispatch schedule is determined based on reactive power heuristics. Then, an optimisation model is applied to determine the dispatch schedule of the substation devices taking into account the control actions of the feeder capacitors. The reference voltage of the substation secondary bus and the tap position limits of transformers are modified such that the model adapts to varying load conditions. The optimisation model is solved with a modified particle swarm optimisation algorithm. Furthermore, the proposed method is compared with conventional volt/var control strategies using a distribution network case study. It is demonstrated that the proposed approach performs better than the conventional strategies in terms of voltage deviation and energy loss minimisation.

ORCID iDs

Mokgonyana, Lesiba ORCID logoORCID: https://orcid.org/0000-0002-2757-4261, Zhang, Jiangfeng, Zhang, Lijun and Xia, Xiaohua;
  • Item type:Article
    ID code:57044
    Dates:
    Date
    Event
    1 December 2016
    Published
    11 August 2016
    Published Online
    11 July 2016
    Accepted
    29 April 2015
    Submitted
    Notes:© 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ Lesiba Mokgonyana, Jiangfeng Zhang, Lijun Zhang, Xiaohua Xia, Coordinated two-stage volt/var management in distribution networks, Electric Power Systems Research, Volume 141, 2016, Pages 157-164, https://doi.org/10.1016/j.epsr.2016.07.012
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:22 Jul 2016 09:04
    Last modified:11 Nov 2024 11:29
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/57044
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