Reactive Power Compensation with PV Inverters for System Loss Reduction

Photovoltaic (PV) system inverters usually operate at unitary power factor, injecting only active power into the system. Recently, many studies have been done analyzing potential benefits of reactive power provisioning, such as voltage regulation, congestion mitigation and loss reduction. This artic...

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Main Authors: Saša Vlahinić, Dubravko Franković, Vitomir Komen, Anamarija Antonić
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/21/4062
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author Saša Vlahinić
Dubravko Franković
Vitomir Komen
Anamarija Antonić
author_facet Saša Vlahinić
Dubravko Franković
Vitomir Komen
Anamarija Antonić
author_sort Saša Vlahinić
collection DOAJ
description Photovoltaic (PV) system inverters usually operate at unitary power factor, injecting only active power into the system. Recently, many studies have been done analyzing potential benefits of reactive power provisioning, such as voltage regulation, congestion mitigation and loss reduction. This article analyzes possibilities for loss reduction in a typical medium voltage distribution system. Losses in the system are compared to the losses in the PV inverters. Different load conditions and PV penetration levels are considered and for each scenario various active power generation by PV inverters are taken into account, together with allowable levels of reactive power provisioning. As far as loss reduction is considered, there is very small number of PV inverters operating conditions for which positive energy balance exists. For low and medium load levels, there is no practical possibility for loss reduction. For high loading levels and higher PV penetration specific reactive savings, due to reactive power provisioning, increase and become bigger than additional losses in PV inverters, but for a very limited range of power factors.
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spelling doaj.art-a043661e00cd46fdbfae2f1aa25cbe9f2022-12-22T04:00:12ZengMDPI AGEnergies1996-10732019-10-011221406210.3390/en12214062en12214062Reactive Power Compensation with PV Inverters for System Loss ReductionSaša Vlahinić0Dubravko Franković1Vitomir Komen2Anamarija Antonić3Faculty of Engineering, University of Rijeka, 51000 Rijeka, CroatiaFaculty of Engineering, University of Rijeka, 51000 Rijeka, CroatiaHEP—Distribution system operator, Elektroprimorje, 51000 Rijeka, CroatiaHOPS–Croatian transmission system operator, 51211 Matulji, CroatiaPhotovoltaic (PV) system inverters usually operate at unitary power factor, injecting only active power into the system. Recently, many studies have been done analyzing potential benefits of reactive power provisioning, such as voltage regulation, congestion mitigation and loss reduction. This article analyzes possibilities for loss reduction in a typical medium voltage distribution system. Losses in the system are compared to the losses in the PV inverters. Different load conditions and PV penetration levels are considered and for each scenario various active power generation by PV inverters are taken into account, together with allowable levels of reactive power provisioning. As far as loss reduction is considered, there is very small number of PV inverters operating conditions for which positive energy balance exists. For low and medium load levels, there is no practical possibility for loss reduction. For high loading levels and higher PV penetration specific reactive savings, due to reactive power provisioning, increase and become bigger than additional losses in PV inverters, but for a very limited range of power factors.https://www.mdpi.com/1996-1073/12/21/4062pv invertersreactive power generationreactive power compensationloss reduction
spellingShingle Saša Vlahinić
Dubravko Franković
Vitomir Komen
Anamarija Antonić
Reactive Power Compensation with PV Inverters for System Loss Reduction
Energies
pv inverters
reactive power generation
reactive power compensation
loss reduction
title Reactive Power Compensation with PV Inverters for System Loss Reduction
title_full Reactive Power Compensation with PV Inverters for System Loss Reduction
title_fullStr Reactive Power Compensation with PV Inverters for System Loss Reduction
title_full_unstemmed Reactive Power Compensation with PV Inverters for System Loss Reduction
title_short Reactive Power Compensation with PV Inverters for System Loss Reduction
title_sort reactive power compensation with pv inverters for system loss reduction
topic pv inverters
reactive power generation
reactive power compensation
loss reduction
url https://www.mdpi.com/1996-1073/12/21/4062
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AT dubravkofrankovic reactivepowercompensationwithpvinvertersforsystemlossreduction
AT vitomirkomen reactivepowercompensationwithpvinvertersforsystemlossreduction
AT anamarijaantonic reactivepowercompensationwithpvinvertersforsystemlossreduction