Development of a fixed-order $$H_{\infty }$$ controller for a robust P&O-MPPT strategy to control poly-crystalline solar PV energy systems
Abstract This paper presents a novel approach to modeling and controlling a solar photovoltaic conversion system(SPCS) that operates under real-time weather conditions. The primary contribution is the introduction of an uncertain model, which has not been published before, simulating the SPCS’s actu...
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-025-86477-y |
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| author | Moussa Sedraoui Mohcene Bechouat Ramazan Ayaz Yahya Z. Alharthi Abdelhalim Borni Layachi Zaghba Salah K. ElSayed Yayehyirad Ayalew Awoke Sherif S. M. Ghoneim |
| author_facet | Moussa Sedraoui Mohcene Bechouat Ramazan Ayaz Yahya Z. Alharthi Abdelhalim Borni Layachi Zaghba Salah K. ElSayed Yayehyirad Ayalew Awoke Sherif S. M. Ghoneim |
| author_sort | Moussa Sedraoui |
| collection | DOAJ |
| description | Abstract This paper presents a novel approach to modeling and controlling a solar photovoltaic conversion system(SPCS) that operates under real-time weather conditions. The primary contribution is the introduction of an uncertain model, which has not been published before, simulating the SPCS’s actual functioning. The proposed robust control strategy involves two stages: first, modifying the standard Perturb and Observe (P&O) algorithm to generate an optimal reference voltage using real-time measurements of temperature, solar irradiance, and wind speed. This modification leads to determining and linearizing the nonlinear current-voltage (I-V) characteristics of the photovoltaic (PV) array near standard test conditions (STC), resulting in an uncertain equivalent resistance used to synthesize an overall model. In the second stage, a robust fixed-order $$H_{\infty }$$ controller is designed based on this uncertain model, with frequency-domain specifications framed as a weighted-mixed sensitivity problem. The optimal solution provides the controller parameters, ensuring good reference tracking dynamics, noise suppression, and attenuation of model uncertainties. Performance assessments at STC compare the standard and robust P&O-MPPT strategies, demonstrating the proposed method’s superiority in performance and robustness, especially under sudden meteorological changes and varying loads. Experiment results confirm the new control strategy’s effectiveness over the standard approach. |
| format | Article |
| id | doaj-art-c1258b93073f45b48ec998b8507c5c8a |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-c1258b93073f45b48ec998b8507c5c8a2025-01-26T12:25:02ZengNature PortfolioScientific Reports2045-23222025-01-0115112310.1038/s41598-025-86477-yDevelopment of a fixed-order $$H_{\infty }$$ controller for a robust P&O-MPPT strategy to control poly-crystalline solar PV energy systemsMoussa Sedraoui0Mohcene Bechouat1Ramazan Ayaz2Yahya Z. Alharthi3Abdelhalim Borni4Layachi Zaghba5Salah K. ElSayed6Yayehyirad Ayalew Awoke7Sherif S. M. Ghoneim8Department of Electrical and Automation Engineering, Faculty of Science and Technology, University of 08 mai 1945 GuelmaDépartement d’Automatique et d’électromécanique, Facult é des sciences et de la technologie, Université de GhardaiaDepartment of Electrical Engineering, Davutpasa Campus, Yildiz Technical UniversityDepartment of Electrical Engineering, College of Engineering, University of Hafr AlbatinUntié de Recherche Aplliquée en Energies Renouvlables, URAER, Centre de Déveloopement des Energies Renouvlables, CDERUntié de Recherche Aplliquée en Energies Renouvlables, URAER, Centre de Déveloopement des Energies Renouvlables, CDERDepartment of Electrical Engineering, College of Engineering, Taif UniversityDepartment of Electrical and Computer Engineering, Debre Markos Institute of Technology, Debre Markos UniversityDepartment of Electrical Engineering, College of Engineering, Taif UniversityAbstract This paper presents a novel approach to modeling and controlling a solar photovoltaic conversion system(SPCS) that operates under real-time weather conditions. The primary contribution is the introduction of an uncertain model, which has not been published before, simulating the SPCS’s actual functioning. The proposed robust control strategy involves two stages: first, modifying the standard Perturb and Observe (P&O) algorithm to generate an optimal reference voltage using real-time measurements of temperature, solar irradiance, and wind speed. This modification leads to determining and linearizing the nonlinear current-voltage (I-V) characteristics of the photovoltaic (PV) array near standard test conditions (STC), resulting in an uncertain equivalent resistance used to synthesize an overall model. In the second stage, a robust fixed-order $$H_{\infty }$$ controller is designed based on this uncertain model, with frequency-domain specifications framed as a weighted-mixed sensitivity problem. The optimal solution provides the controller parameters, ensuring good reference tracking dynamics, noise suppression, and attenuation of model uncertainties. Performance assessments at STC compare the standard and robust P&O-MPPT strategies, demonstrating the proposed method’s superiority in performance and robustness, especially under sudden meteorological changes and varying loads. Experiment results confirm the new control strategy’s effectiveness over the standard approach.https://doi.org/10.1038/s41598-025-86477-y |
| spellingShingle | Moussa Sedraoui Mohcene Bechouat Ramazan Ayaz Yahya Z. Alharthi Abdelhalim Borni Layachi Zaghba Salah K. ElSayed Yayehyirad Ayalew Awoke Sherif S. M. Ghoneim Development of a fixed-order $$H_{\infty }$$ controller for a robust P&O-MPPT strategy to control poly-crystalline solar PV energy systems Scientific Reports |
| title | Development of a fixed-order $$H_{\infty }$$ controller for a robust P&O-MPPT strategy to control poly-crystalline solar PV energy systems |
| title_full | Development of a fixed-order $$H_{\infty }$$ controller for a robust P&O-MPPT strategy to control poly-crystalline solar PV energy systems |
| title_fullStr | Development of a fixed-order $$H_{\infty }$$ controller for a robust P&O-MPPT strategy to control poly-crystalline solar PV energy systems |
| title_full_unstemmed | Development of a fixed-order $$H_{\infty }$$ controller for a robust P&O-MPPT strategy to control poly-crystalline solar PV energy systems |
| title_short | Development of a fixed-order $$H_{\infty }$$ controller for a robust P&O-MPPT strategy to control poly-crystalline solar PV energy systems |
| title_sort | development of a fixed order h infty controller for a robust p o mppt strategy to control poly crystalline solar pv energy systems |
| url | https://doi.org/10.1038/s41598-025-86477-y |
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