Over-voltage mitigation within distribution networks with a high renewable distributed generation penetration

Paper


Kennedy, Joel, Ciufo, Phil and Agalgaonkar, Ashish. 2014. "Over-voltage mitigation within distribution networks with a high renewable distributed generation penetration." Kuzle, Igor, Capuder, Tomislav and Pandzic, Hrvoje (ed.) 2014 IEEE International Energy Conference (ENERGYCON). Cavtat, Croatia 13 - 16 May 2014 New York, United States. https://doi.org/10.1109/ENERGYCON.2014.6850562
Paper/Presentation Title

Over-voltage mitigation within distribution networks with a high renewable distributed generation penetration

Presentation TypePaper
AuthorsKennedy, Joel (Author), Ciufo, Phil (Author) and Agalgaonkar, Ashish (Author)
EditorsKuzle, Igor, Capuder, Tomislav and Pandzic, Hrvoje
Journal or Proceedings TitleProceedings of the 2014 IEEE International Energy Conference (ENERGYCON)
ERA Conference ID72403
Number of Pages8
Year2014
Place of PublicationNew York, United States
ISBN9781479924493
Digital Object Identifier (DOI)https://doi.org/10.1109/ENERGYCON.2014.6850562
Web Address (URL) of Paperhttps://ieeexplore.ieee.org/abstract/document/6850562
Conference/Event2014 IEEE International Energy Conference (ENERGYCON)
IEEE International Energy Conference (ENERGYCON)
Event Details
2014 IEEE International Energy Conference (ENERGYCON)
Event Date
13 to end of 16 May 2014
Event Location
Cavtat, Croatia
Event Details
IEEE International Energy Conference (ENERGYCON)
ENERGYCON
Abstract

The rapid growth of grid-connected distributed generation has increased the likelihood of over-voltage occurrences in distribution networks. In recent times, much research has taken place in order to develop a control strategy to mitigate the voltage rise problem. However, most of the published strategies require re-tuning when additional resources are connected, or have a strong dependence on network parameters, such as fault level. This paper proposes a novel over-voltage mitigation scheme that has many advantages not observed in literature. Firstly, the control scheme can integrate with an existing feeder in a plug-and-play fashion. No prior analysis is necessary to configure the control parameters; all required information is measured locally. Secondly, the control scheme is a simple extension upon constant power control which is common in most grid-connected inverter interfaces. Finally, the proposed over-voltage mitigation scheme enforces a fair and equitable power flow allocation. The scheme contains a predefined point of convergence for any voltage magnitude measured at the point of common coupling. Many control schemes operate in a perturb and observe manner which can inadvertently allow certain DG units to export a disproportionate amount of power with respect to other DG units. This paper also details a methodology for analysing the cost effectiveness of any given DG configuration utilising the proposed over-voltage mitigation scheme. The analysis is useful for determining whether a network infrastructure upgrade may be necessary as power curtailment becomes more prevalent within a distribution network.

Keywordsdistributed generation; distribution networks; inverters; Over-voltage
ANZSRC Field of Research 2020400805. Electrical energy transmission, networks and systems
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Byline AffiliationsUniversity of Wollongong
Institution of OriginUniversity of Southern Queensland
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