Sliding Mode Controller Design for Stabilization of the Three-Phase Grid-Connected Inverters in the Presence of Unbalanced Local Loads

Considering the presence of different model parameters and controlling variables, as well as the nonlinear nature of DC to AC inverters; stabilizing the closed-loop system for grid current balancing is a challenging task. To cope with these issues, a novel sliding mode controller is proposed for the...

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Main Authors: A. Zakipour, K. Aminzare, M. Salimi
Format: Article
Language:English
Published: Iran University of Science and Technology 2022-09-01
Series:Iranian Journal of Electrical and Electronic Engineering
Subjects:
Online Access:http://ijeee.iust.ac.ir/article-1-2125-en.html
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author A. Zakipour
K. Aminzare
M. Salimi
author_facet A. Zakipour
K. Aminzare
M. Salimi
author_sort A. Zakipour
collection DOAJ
description Considering the presence of different model parameters and controlling variables, as well as the nonlinear nature of DC to AC inverters; stabilizing the closed-loop system for grid current balancing is a challenging task. To cope with these issues, a novel sliding mode controller is proposed for the current balancing of local loads using grid-connected inverters in this paper. The closed-loop system includes two different controlling loops: a current controller which regulates the output current of grid-connected inverter and a voltage controller which is responsible for DC link voltage regulation. The main features of the proposed nonlinear controller are reactive power compensation, harmonic filtering and three-phase balancing of local nonlinear loads.  The developed controller is designed based on the state-space averaged modelling its stability and robustness are proved analytically using the Lyapunov stability theorem. The accuracy and effectiveness of proposed controlled approach are investigated through the PC-based simulations in MATLAB/Simulink.
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spelling doaj.art-8ec591120793463c830ce84c877019682022-12-22T04:19:04ZengIran University of Science and TechnologyIranian Journal of Electrical and Electronic Engineering1735-28272383-38902022-09-0118321252125Sliding Mode Controller Design for Stabilization of the Three-Phase Grid-Connected Inverters in the Presence of Unbalanced Local LoadsA. Zakipour0K. Aminzare1M. Salimi2 Faculty of Electrical Engineering, Arak University of Technology (AUT), Arak, Iran. Islamic Azad University, Science and Research Branch, Tehran, Iran. Faculty of Engineering and Science, University of Greenwich, Kent, UK. Considering the presence of different model parameters and controlling variables, as well as the nonlinear nature of DC to AC inverters; stabilizing the closed-loop system for grid current balancing is a challenging task. To cope with these issues, a novel sliding mode controller is proposed for the current balancing of local loads using grid-connected inverters in this paper. The closed-loop system includes two different controlling loops: a current controller which regulates the output current of grid-connected inverter and a voltage controller which is responsible for DC link voltage regulation. The main features of the proposed nonlinear controller are reactive power compensation, harmonic filtering and three-phase balancing of local nonlinear loads.  The developed controller is designed based on the state-space averaged modelling its stability and robustness are proved analytically using the Lyapunov stability theorem. The accuracy and effectiveness of proposed controlled approach are investigated through the PC-based simulations in MATLAB/Simulink.http://ijeee.iust.ac.ir/article-1-2125-en.htmlharmonic and reactive compensationrobustness and stabilityshunt active power filtersliding mode controlthree-phase current balancingwide operational range.
spellingShingle A. Zakipour
K. Aminzare
M. Salimi
Sliding Mode Controller Design for Stabilization of the Three-Phase Grid-Connected Inverters in the Presence of Unbalanced Local Loads
Iranian Journal of Electrical and Electronic Engineering
harmonic and reactive compensation
robustness and stability
shunt active power filter
sliding mode control
three-phase current balancing
wide operational range.
title Sliding Mode Controller Design for Stabilization of the Three-Phase Grid-Connected Inverters in the Presence of Unbalanced Local Loads
title_full Sliding Mode Controller Design for Stabilization of the Three-Phase Grid-Connected Inverters in the Presence of Unbalanced Local Loads
title_fullStr Sliding Mode Controller Design for Stabilization of the Three-Phase Grid-Connected Inverters in the Presence of Unbalanced Local Loads
title_full_unstemmed Sliding Mode Controller Design for Stabilization of the Three-Phase Grid-Connected Inverters in the Presence of Unbalanced Local Loads
title_short Sliding Mode Controller Design for Stabilization of the Three-Phase Grid-Connected Inverters in the Presence of Unbalanced Local Loads
title_sort sliding mode controller design for stabilization of the three phase grid connected inverters in the presence of unbalanced local loads
topic harmonic and reactive compensation
robustness and stability
shunt active power filter
sliding mode control
three-phase current balancing
wide operational range.
url http://ijeee.iust.ac.ir/article-1-2125-en.html
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AT kaminzare slidingmodecontrollerdesignforstabilizationofthethreephasegridconnectedinvertersinthepresenceofunbalancedlocalloads
AT msalimi slidingmodecontrollerdesignforstabilizationofthethreephasegridconnectedinvertersinthepresenceofunbalancedlocalloads