Convex Model for Estimation of Single-Phase Photovoltaic Impact on Existing Voltage Unbalance in Distribution Networks

Convex Model for Estimation of Single-Phase Photovoltaic Impact on Existing Voltage Unbalance in Distribution Networks

Due to the increasing adoption of solar power generation, voltage unbalance estimation gets more attention in sparsely populated rural networks. This paper presents a Monte Carlo simulation augmented with convex mixed-integer quadratic programming to estimate voltage unbalance and maximum photovolta...

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Main Authors: Verner Püvi, Matti Lehtonen
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Applied Sciences
Subjects:
convex model
Monte Carlo simulation
voltage unbalance
Online Access:https://www.mdpi.com/2076-3417/10/24/8884
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spelling doaj-67c1887be30f4f9e908e8d26014632a72020-12-13T00:00:29ZengMDPI AGApplied Sciences2076-34172020-12-01108884888410.3390/app10248884Convex Model for Estimation of Single-Phase Photovoltaic Impact on Existing Voltage Unbalance in Distribution NetworksVerner Püvi0Matti Lehtonen1Department of Electrical Engineering and Automation, Aalto University, Maarintie 8, 02150 Espoo, FinlandDepartment of Electrical Engineering and Automation, Aalto University, Maarintie 8, 02150 Espoo, FinlandDue to the increasing adoption of solar power generation, voltage unbalance estimation gets more attention in sparsely populated rural networks. This paper presents a Monte Carlo simulation augmented with convex mixed-integer quadratic programming to estimate voltage unbalance and maximum photovoltaic penetration. Additionally, voltage unbalance attenuation by proper phase allocation of photovoltaic plants is analysed. Single-phase plants are simulated in low-voltage distribution networks and voltage unbalance is evaluated as a contribution of measured background and photovoltaic-caused unbalance. Voltage unbalance is calculated in accordance with EN 50160 and takes into account 10-minute average values with 5% tolerance condition. Results of the optimization revealed substantial unbalance attenuation with optimal phase selection and increased potential of local generation hosting capacity in case of higher background unbalance.https://www.mdpi.com/2076-3417/10/24/8884convex modelMonte Carlo simulationvoltage unbalance
collection DOAJ
language English
format Article
sources DOAJ
author Verner Püvi
Matti Lehtonen
spellingShingle Verner Püvi
Matti Lehtonen
Convex Model for Estimation of Single-Phase Photovoltaic Impact on Existing Voltage Unbalance in Distribution Networks
Applied Sciences
convex model
Monte Carlo simulation
voltage unbalance
author_facet Verner Püvi
Matti Lehtonen
author_sort Verner Püvi
title Convex Model for Estimation of Single-Phase Photovoltaic Impact on Existing Voltage Unbalance in Distribution Networks
title_short Convex Model for Estimation of Single-Phase Photovoltaic Impact on Existing Voltage Unbalance in Distribution Networks
title_full Convex Model for Estimation of Single-Phase Photovoltaic Impact on Existing Voltage Unbalance in Distribution Networks
title_fullStr Convex Model for Estimation of Single-Phase Photovoltaic Impact on Existing Voltage Unbalance in Distribution Networks
title_full_unstemmed Convex Model for Estimation of Single-Phase Photovoltaic Impact on Existing Voltage Unbalance in Distribution Networks
title_sort convex model for estimation of single-phase photovoltaic impact on existing voltage unbalance in distribution networks
publisher MDPI AG
series Applied Sciences
issn 2076-3417
publishDate 2020-12-01
description Due to the increasing adoption of solar power generation, voltage unbalance estimation gets more attention in sparsely populated rural networks. This paper presents a Monte Carlo simulation augmented with convex mixed-integer quadratic programming to estimate voltage unbalance and maximum photovoltaic penetration. Additionally, voltage unbalance attenuation by proper phase allocation of photovoltaic plants is analysed. Single-phase plants are simulated in low-voltage distribution networks and voltage unbalance is evaluated as a contribution of measured background and photovoltaic-caused unbalance. Voltage unbalance is calculated in accordance with EN 50160 and takes into account 10-minute average values with 5% tolerance condition. Results of the optimization revealed substantial unbalance attenuation with optimal phase selection and increased potential of local generation hosting capacity in case of higher background unbalance.
topic convex model
Monte Carlo simulation
voltage unbalance
url https://www.mdpi.com/2076-3417/10/24/8884
work_keys_str_mv AT vernerpuvi convexmodelforestimationofsinglephasephotovoltaicimpactonexistingvoltageunbalanceindistributionnetworks
AT mattilehtonen convexmodelforestimationofsinglephasephotovoltaicimpactonexistingvoltageunbalanceindistributionnetworks
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