A Scalable Hierarchical Dynamic PV Array Reconfiguration under Partial Shading
Photovoltaic (PV) arrays are often affected by partial shading (PS), which can significantly reduce their power output. Dynamic reconfiguration is a promising technique for mitigating the negative effects of PS by adjusting the electrical connections of the PV modules in real-time. This paper introd...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/1/181 |
| _version_ | 1797358851278766080 |
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| author | Fatimah Ameen Abdulrahman Siddiq Attila Trohák Rabab Benotsmane |
| author_facet | Fatimah Ameen Abdulrahman Siddiq Attila Trohák Rabab Benotsmane |
| author_sort | Fatimah Ameen |
| collection | DOAJ |
| description | Photovoltaic (PV) arrays are often affected by partial shading (PS), which can significantly reduce their power output. Dynamic reconfiguration is a promising technique for mitigating the negative effects of PS by adjusting the electrical connections of the PV modules in real-time. This paper introduces a hierarchical-based switching block scheme for the dynamic reconfiguration of PV arrays under PS conditions. With the aim of mitigating the negative impact of PS on PV arrays, the proposed system employs a low complexity and easily scalable architecture, making it well-suited for practical applications. Comparative assessments against conventional configurations such as bridge-linked (BL), total-cross-tied (TCT), and series–parallel (SP) reveal superior energy harvesting efficiency for the proposed system under various shading conditions. The hierarchical switching block architecture, featuring multiple levels of switching blocks, enables efficient and flexible reconfiguration of the PV array, even in the presence of complex shading patterns. Through extensive simulations, the system consistently outperforms conventional configurations by adapting effectively to changing shading patterns and optimizing the PV array’s output. The proposed switching block (SB) reconfiguration technique significantly outperforms existing methods like TCT, Sudoku, dynamic proposals, and Magic Square in terms of both power generation (up to 42.52% increase) and efficiency (up to 42.13% improvement) under diverse partial shading conditions. The proposed hierarchical-based switching block scheme thus presents a promising solution for enhancing the dynamic reconfiguration of PV arrays under PS conditions, offering a balance between low complexity, scalability, and superior energy harvesting efficiency for practical applications in the realm of solar energy. |
| first_indexed | 2024-03-08T15:08:11Z |
| format | Article |
| id | doaj.art-2c38b50a16f840aca59249a85d753f34 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-08T15:08:11Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-2c38b50a16f840aca59249a85d753f342024-01-10T14:56:07ZengMDPI AGEnergies1996-10732023-12-0117118110.3390/en17010181A Scalable Hierarchical Dynamic PV Array Reconfiguration under Partial ShadingFatimah Ameen0Abdulrahman Siddiq1Attila Trohák2Rabab Benotsmane3Institute of Automation and Info-Communication, University of Miskolc, 3515 Miskolc, HungaryDepartment of Electronic and Control Engineering, Northern Technical University, Kirkuk 3600, IraqInstitute of Automation and Info-Communication, University of Miskolc, 3515 Miskolc, HungaryInstitute of Automation and Info-Communication, University of Miskolc, 3515 Miskolc, HungaryPhotovoltaic (PV) arrays are often affected by partial shading (PS), which can significantly reduce their power output. Dynamic reconfiguration is a promising technique for mitigating the negative effects of PS by adjusting the electrical connections of the PV modules in real-time. This paper introduces a hierarchical-based switching block scheme for the dynamic reconfiguration of PV arrays under PS conditions. With the aim of mitigating the negative impact of PS on PV arrays, the proposed system employs a low complexity and easily scalable architecture, making it well-suited for practical applications. Comparative assessments against conventional configurations such as bridge-linked (BL), total-cross-tied (TCT), and series–parallel (SP) reveal superior energy harvesting efficiency for the proposed system under various shading conditions. The hierarchical switching block architecture, featuring multiple levels of switching blocks, enables efficient and flexible reconfiguration of the PV array, even in the presence of complex shading patterns. Through extensive simulations, the system consistently outperforms conventional configurations by adapting effectively to changing shading patterns and optimizing the PV array’s output. The proposed switching block (SB) reconfiguration technique significantly outperforms existing methods like TCT, Sudoku, dynamic proposals, and Magic Square in terms of both power generation (up to 42.52% increase) and efficiency (up to 42.13% improvement) under diverse partial shading conditions. The proposed hierarchical-based switching block scheme thus presents a promising solution for enhancing the dynamic reconfiguration of PV arrays under PS conditions, offering a balance between low complexity, scalability, and superior energy harvesting efficiency for practical applications in the realm of solar energy.https://www.mdpi.com/1996-1073/17/1/181PV arraypartial shadingswitching blockdynamic reconfigurationmaximum power point trackermismatch loss |
| spellingShingle | Fatimah Ameen Abdulrahman Siddiq Attila Trohák Rabab Benotsmane A Scalable Hierarchical Dynamic PV Array Reconfiguration under Partial Shading Energies PV array partial shading switching block dynamic reconfiguration maximum power point tracker mismatch loss |
| title | A Scalable Hierarchical Dynamic PV Array Reconfiguration under Partial Shading |
| title_full | A Scalable Hierarchical Dynamic PV Array Reconfiguration under Partial Shading |
| title_fullStr | A Scalable Hierarchical Dynamic PV Array Reconfiguration under Partial Shading |
| title_full_unstemmed | A Scalable Hierarchical Dynamic PV Array Reconfiguration under Partial Shading |
| title_short | A Scalable Hierarchical Dynamic PV Array Reconfiguration under Partial Shading |
| title_sort | scalable hierarchical dynamic pv array reconfiguration under partial shading |
| topic | PV array partial shading switching block dynamic reconfiguration maximum power point tracker mismatch loss |
| url | https://www.mdpi.com/1996-1073/17/1/181 |
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