Comparative Analysis of Three-Phase PV Grid Connected Inverter Current Control Schemes in Unbalanced Grid Conditions

Recently, the regulation of photovoltaic inverters, effectively under imbalanced voltages on the grid, has been crucial for the operation of grid-connected solar systems. In this regard, determining the output current reference is an integral aspect of managing a solar inverter with an unbalanced vo...

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Main Authors: Nagwa F. Ibrahim, Karar Mahmoud, Matti Lehtonen, Mohamed M. F. Darwish
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10107907/
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author Nagwa F. Ibrahim
Karar Mahmoud
Matti Lehtonen
Mohamed M. F. Darwish
author_facet Nagwa F. Ibrahim
Karar Mahmoud
Matti Lehtonen
Mohamed M. F. Darwish
author_sort Nagwa F. Ibrahim
collection DOAJ
description Recently, the regulation of photovoltaic inverters, effectively under imbalanced voltages on the grid, has been crucial for the operation of grid-connected solar systems. In this regard, determining the output current reference is an integral aspect of managing a solar inverter with an unbalanced voltage. Based on evaluations of Instantaneous Active-reactive Control (IARC), Positive Negative Sequence Control (PNSC), Balanced Positive Sequence Control (BPSC), and Average Active-reactive Control (AARC), this paper proposes a novel variable-current-t-reference calculation method for minimizing power fluctuations and current harmonics. The controller is employed to regulate both constructive and destructive sequences inside a static framework, therefore enhancing dynamic performance and facilitating the selection of suitable controls in the presence of significant network defects. This study also suggests comparing the four MPPT methodologies examined (fuzzy logic, current only, Incremental Conductance, and Perturb & Observe) to maximize energy output. The simulation results efficiently validate the suggested computation approach that is presented in the current reference.
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spelling doaj.art-f7384126e7ec4c3a9145dc5af05321ac2023-05-04T23:00:24ZengIEEEIEEE Access2169-35362023-01-0111422044222110.1109/ACCESS.2023.327026210107907Comparative Analysis of Three-Phase PV Grid Connected Inverter Current Control Schemes in Unbalanced Grid ConditionsNagwa F. Ibrahim0https://orcid.org/0000-0003-3978-7245Karar Mahmoud1https://orcid.org/0000-0002-6729-6809Matti Lehtonen2https://orcid.org/0000-0002-9979-7333Mohamed M. F. Darwish3https://orcid.org/0000-0001-9782-8813Electrical Department, Faculty of Technology and Education, Suez University, Suez, EgyptDepartment of Electrical Engineering and Automation, School of Electrical Engineering, Aalto University, Espoo, FinlandDepartment of Electrical Engineering and Automation, School of Electrical Engineering, Aalto University, Espoo, FinlandDepartment of Electrical Engineering, Faculty of Engineering at Shoubra, Benha University, Cairo, EgyptRecently, the regulation of photovoltaic inverters, effectively under imbalanced voltages on the grid, has been crucial for the operation of grid-connected solar systems. In this regard, determining the output current reference is an integral aspect of managing a solar inverter with an unbalanced voltage. Based on evaluations of Instantaneous Active-reactive Control (IARC), Positive Negative Sequence Control (PNSC), Balanced Positive Sequence Control (BPSC), and Average Active-reactive Control (AARC), this paper proposes a novel variable-current-t-reference calculation method for minimizing power fluctuations and current harmonics. The controller is employed to regulate both constructive and destructive sequences inside a static framework, therefore enhancing dynamic performance and facilitating the selection of suitable controls in the presence of significant network defects. This study also suggests comparing the four MPPT methodologies examined (fuzzy logic, current only, Incremental Conductance, and Perturb & Observe) to maximize energy output. The simulation results efficiently validate the suggested computation approach that is presented in the current reference.https://ieeexplore.ieee.org/document/10107907/Grid-connected PV systemoutput current referencedual controllercurrent harmonicsMPPT techniquesand DC-DC converter
spellingShingle Nagwa F. Ibrahim
Karar Mahmoud
Matti Lehtonen
Mohamed M. F. Darwish
Comparative Analysis of Three-Phase PV Grid Connected Inverter Current Control Schemes in Unbalanced Grid Conditions
IEEE Access
Grid-connected PV system
output current reference
dual controller
current harmonics
MPPT techniques
and DC-DC converter
title Comparative Analysis of Three-Phase PV Grid Connected Inverter Current Control Schemes in Unbalanced Grid Conditions
title_full Comparative Analysis of Three-Phase PV Grid Connected Inverter Current Control Schemes in Unbalanced Grid Conditions
title_fullStr Comparative Analysis of Three-Phase PV Grid Connected Inverter Current Control Schemes in Unbalanced Grid Conditions
title_full_unstemmed Comparative Analysis of Three-Phase PV Grid Connected Inverter Current Control Schemes in Unbalanced Grid Conditions
title_short Comparative Analysis of Three-Phase PV Grid Connected Inverter Current Control Schemes in Unbalanced Grid Conditions
title_sort comparative analysis of three phase pv grid connected inverter current control schemes in unbalanced grid conditions
topic Grid-connected PV system
output current reference
dual controller
current harmonics
MPPT techniques
and DC-DC converter
url https://ieeexplore.ieee.org/document/10107907/
work_keys_str_mv AT nagwafibrahim comparativeanalysisofthreephasepvgridconnectedinvertercurrentcontrolschemesinunbalancedgridconditions
AT kararmahmoud comparativeanalysisofthreephasepvgridconnectedinvertercurrentcontrolschemesinunbalancedgridconditions
AT mattilehtonen comparativeanalysisofthreephasepvgridconnectedinvertercurrentcontrolschemesinunbalancedgridconditions
AT mohamedmfdarwish comparativeanalysisofthreephasepvgridconnectedinvertercurrentcontrolschemesinunbalancedgridconditions