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Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS

This work focuses on maximum power extraction via certainty equivalence-based robust sliding mode control protocols for an uncertain Permanent Magnet Synchronous Generator-based Wind Energy Conversion System (PMSG-WECS). The considered system is subjected to both structured and unstructured disturba...

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Detalles Bibliográficos
Autores principales: Chand, Annas, Khan, Qudrat, Alam, Waqar, Khan, Laiq, Iqbal, Jamshed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9970108/
https://www.ncbi.nlm.nih.gov/pubmed/36848336
http://dx.doi.org/10.1371/journal.pone.0281116
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author Chand, Annas
Khan, Qudrat
Alam, Waqar
Khan, Laiq
Iqbal, Jamshed
author_facet Chand, Annas
Khan, Qudrat
Alam, Waqar
Khan, Laiq
Iqbal, Jamshed
author_sort Chand, Annas
collection PubMed
description This work focuses on maximum power extraction via certainty equivalence-based robust sliding mode control protocols for an uncertain Permanent Magnet Synchronous Generator-based Wind Energy Conversion System (PMSG-WECS). The considered system is subjected to both structured and unstructured disturbances, which may occur through the input channel. Initially, the PMSG-WECS system is transformed into a Bronwsky form, i.e., controllable canonical form, which is composed of both internal and visible dynamics. The internal dynamics are proved stable, i.e., the system is in the minimum phase. However, the control of visible dynamics, to track the desired trajectory, is the main concern. To carry out this task, the certainty equivalence-based control strategies, i.e., conventional sliding mode control, terminal sliding mode control and integral sliding mode control are designed. Consequently, a chattering phenomenon is suppressed by the employment of equivalent estimated disturbances, which also enhance the robustness of the proposed control strategies. Eventually, a comprehensive stability analysis of the proposed control techniques is presented. All the theoretical claims are verified via computer simulations, which are performed in MATLAB/Simulink.
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spelling pubmed-99701082023-02-28 Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS Chand, Annas Khan, Qudrat Alam, Waqar Khan, Laiq Iqbal, Jamshed PLoS One Research Article This work focuses on maximum power extraction via certainty equivalence-based robust sliding mode control protocols for an uncertain Permanent Magnet Synchronous Generator-based Wind Energy Conversion System (PMSG-WECS). The considered system is subjected to both structured and unstructured disturbances, which may occur through the input channel. Initially, the PMSG-WECS system is transformed into a Bronwsky form, i.e., controllable canonical form, which is composed of both internal and visible dynamics. The internal dynamics are proved stable, i.e., the system is in the minimum phase. However, the control of visible dynamics, to track the desired trajectory, is the main concern. To carry out this task, the certainty equivalence-based control strategies, i.e., conventional sliding mode control, terminal sliding mode control and integral sliding mode control are designed. Consequently, a chattering phenomenon is suppressed by the employment of equivalent estimated disturbances, which also enhance the robustness of the proposed control strategies. Eventually, a comprehensive stability analysis of the proposed control techniques is presented. All the theoretical claims are verified via computer simulations, which are performed in MATLAB/Simulink. Public Library of Science 2023-02-27 /pmc/articles/PMC9970108/ /pubmed/36848336 http://dx.doi.org/10.1371/journal.pone.0281116 Text en © 2023 Chand et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Chand, Annas
Khan, Qudrat
Alam, Waqar
Khan, Laiq
Iqbal, Jamshed
Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS
title Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS
title_full Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS
title_fullStr Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS
title_full_unstemmed Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS
title_short Certainty equivalence-based robust sliding mode control strategy and its application to uncertain PMSG-WECS
title_sort certainty equivalence-based robust sliding mode control strategy and its application to uncertain pmsg-wecs
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9970108/
https://www.ncbi.nlm.nih.gov/pubmed/36848336
http://dx.doi.org/10.1371/journal.pone.0281116
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