Enhancing PV Hosting Capacity Using Voltage Control and Employing Dynamic Line Rating

Photovoltaic (PV) system installation has encouraged to be further expedited to minimize climate change and thus, rooftop solar PV systems have been sparkled in every corner of the world. However, due to technological constraints linked to voltage and currents, the PV hosting capacity has been subst...

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Main Authors: Eshan Karunarathne, Akila Wijethunge, Janaka Ekanayake
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/1/134
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author Eshan Karunarathne
Akila Wijethunge
Janaka Ekanayake
author_facet Eshan Karunarathne
Akila Wijethunge
Janaka Ekanayake
author_sort Eshan Karunarathne
collection DOAJ
description Photovoltaic (PV) system installation has encouraged to be further expedited to minimize climate change and thus, rooftop solar PV systems have been sparkled in every corner of the world. However, due to technological constraints linked to voltage and currents, the PV hosting capacity has been substantially constrained. Therefore, this paper proposes a competent approach to maximize PV hosting capacity in a low voltage distribution network based on voltage control and dynamic line rating of the cables. Coordinated voltage control is applied with an on-load tap changing transformer, and reactive power compensation and active power curtailment of PV inverters. A case study with probabilistic and deterministic assessments is carried out on a real Sri Lankan network to show how the PV hosting capacity is constrained. The findings revealed the capability of integrated voltage control schemes and dynamic line rating in maximizing hosting capacity. The study is expanded by incorporating the PV rephasing approach in conjunction with the aforementioned control techniques, and the effectiveness of PV-rephasing is clearly demonstrated. When compared to voltage control and conductor static rating, the combined rephasing, voltage control, and DLR yielded a 60% increase in PV hosting capacity.
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spelling doaj.art-c020b6e8807d451dba2f1171f0fe1ca92023-11-23T11:26:03ZengMDPI AGEnergies1996-10732021-12-0115113410.3390/en15010134Enhancing PV Hosting Capacity Using Voltage Control and Employing Dynamic Line RatingEshan Karunarathne0Akila Wijethunge1Janaka Ekanayake2Department of Electrical and Electronic Engineering, University of Peradeniya, Peradeniya 20400, Sri LankaDepartment of Materials and Mechanical Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama 10200, Sri LankaDepartment of Electrical and Electronic Engineering, University of Peradeniya, Peradeniya 20400, Sri LankaPhotovoltaic (PV) system installation has encouraged to be further expedited to minimize climate change and thus, rooftop solar PV systems have been sparkled in every corner of the world. However, due to technological constraints linked to voltage and currents, the PV hosting capacity has been substantially constrained. Therefore, this paper proposes a competent approach to maximize PV hosting capacity in a low voltage distribution network based on voltage control and dynamic line rating of the cables. Coordinated voltage control is applied with an on-load tap changing transformer, and reactive power compensation and active power curtailment of PV inverters. A case study with probabilistic and deterministic assessments is carried out on a real Sri Lankan network to show how the PV hosting capacity is constrained. The findings revealed the capability of integrated voltage control schemes and dynamic line rating in maximizing hosting capacity. The study is expanded by incorporating the PV rephasing approach in conjunction with the aforementioned control techniques, and the effectiveness of PV-rephasing is clearly demonstrated. When compared to voltage control and conductor static rating, the combined rephasing, voltage control, and DLR yielded a 60% increase in PV hosting capacity.https://www.mdpi.com/1996-1073/15/1/134PV hosting capacitydynamic line ratingvoltage controlreactive poweractive powerlow voltage distribution network
spellingShingle Eshan Karunarathne
Akila Wijethunge
Janaka Ekanayake
Enhancing PV Hosting Capacity Using Voltage Control and Employing Dynamic Line Rating
Energies
PV hosting capacity
dynamic line rating
voltage control
reactive power
active power
low voltage distribution network
title Enhancing PV Hosting Capacity Using Voltage Control and Employing Dynamic Line Rating
title_full Enhancing PV Hosting Capacity Using Voltage Control and Employing Dynamic Line Rating
title_fullStr Enhancing PV Hosting Capacity Using Voltage Control and Employing Dynamic Line Rating
title_full_unstemmed Enhancing PV Hosting Capacity Using Voltage Control and Employing Dynamic Line Rating
title_short Enhancing PV Hosting Capacity Using Voltage Control and Employing Dynamic Line Rating
title_sort enhancing pv hosting capacity using voltage control and employing dynamic line rating
topic PV hosting capacity
dynamic line rating
voltage control
reactive power
active power
low voltage distribution network
url https://www.mdpi.com/1996-1073/15/1/134
work_keys_str_mv AT eshankarunarathne enhancingpvhostingcapacityusingvoltagecontrolandemployingdynamiclinerating
AT akilawijethunge enhancingpvhostingcapacityusingvoltagecontrolandemployingdynamiclinerating
AT janakaekanayake enhancingpvhostingcapacityusingvoltagecontrolandemployingdynamiclinerating