Optimizing PV-Hosting Capacity with the Integrated Employment of Dynamic Line Rating and Voltage Regulation

Ramitha Dissanayake, Akila Wijethunge, Janaka Wijayakulasooriya and Janaka Ekanayake ()
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Ramitha Dissanayake: Department of Electrical and Electronic Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
Akila Wijethunge: Department of Materials and Mechanical Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama 10200, Sri Lanka
Janaka Wijayakulasooriya: Department of Electrical and Electronic Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
Janaka Ekanayake: Department of Electrical and Electronic Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka

Energies, 2022, vol. 15, issue 22, 1-19

Abstract: A record amount of renewable energy has been added to global electricity generation in recent years. Among the renewable energy sources, solar photovoltaic (PV) is the most popular energy source integrated into low voltage distribution networks. However, the voltage limits and current-carrying capacity of the conductors become a barrier to maximizing the PV-hosting capacity in low voltage distribution networks. This paper presents an optimization approach to maximize the PV-hosting capacity in order to fully utilize the existing low voltage distribution network assets. To achieve the maximum PV-hosting capacity of the network, a novel method based on the dynamic line rating of the low voltage distribution network, the coordinated operation of voltage control methods and the PV re-phasing technique was introduced and validated using a case study. The results show that the proposed methodology can enhance the PV-hosting capacity by 53.5% when compared to existing practices.

Keywords: PV-hosting capacity; dynamic line rating; reactive power compensation; PV re-phasing; optimization; low voltage distribution network (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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