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

Kennedy, Joel ORCID: https://orcid.org/0000-0002-6489-0845 and Ciufo, Phil and Agalgaonkar, Ashish (2014) Over-voltage mitigation within distribution networks with a high renewable distributed generation penetration. In: 2014 IEEE International Energy Conference (ENERGYCON), 13 May - 16 May 2014, Cavtat, Croatia.


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.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 19 Apr 2022 23:44
Last Modified: 19 Apr 2022 23:44
Uncontrolled Keywords: distributed generation; distribution networks; inverters; Over-voltage
Fields of Research (2020): 40 ENGINEERING > 4008 Electrical engineering > 400805 Electrical energy transmission, networks and systems
Identification Number or DOI: https://doi.org/10.1109/ENERGYCON.2014.6850562
URI: http://eprints.usq.edu.au/id/eprint/44794

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