Novel Fast-Speed Partial-Shading-Tolerant Flexible Power Point Tracking for Photovoltaic Systems With Explicit Key Points Estimation
Recent power curtailment-based photovoltaic (PV) flexible power point tracking (FPPT) algorithms mainly adopted intricate curve fitting or sophisticated curve-scanning mechanisms to ensure the grid supportive functionalities under partial shading conditions (PSCs), showing the limitations of mathema...
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| Veröffentlicht in: | IEEE transactions on sustainable energy 2024-01, Vol.15 (1), p.466-485 |
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| creator | Zhu, Yinxiao Wen, Huiqing Tafti, Hossein Dehghani Wang, Guangyu Bu, Qinglei Chu, Guanying Shi, Haochen Hu, Yihua Jiang, Lin |
| description | Recent power curtailment-based photovoltaic (PV) flexible power point tracking (FPPT) algorithms mainly adopted intricate curve fitting or sophisticated curve-scanning mechanisms to ensure the grid supportive functionalities under partial shading conditions (PSCs), showing the limitations of mathematical solidity or system dynamics improvement. Accordingly, a novel fast-speed partial-shading-tolerant FPPT (PST-FPPT) algorithm is proposed in this article. Regarding the proposed scheme, a modified explicit PV model is developed to express the key operation points with the assistance of several representative current-voltage samples from the initialization process, which is beneficial to computational burden reduction and irradiance sensors removal. Additionally, to guarantee the tracking speed to system dynamics, a set point estimation-based direct voltage regulation strategy is proposed in this article, eliminating the redundant searching in approaching the predefined power command. Simulation and experimental evaluations under various PSCs and operational circumstances validated the effectiveness of the proposed control. |
| doi_str_mv | 10.1109/TSTE.2023.3303456 |
| format | Article |
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Accordingly, a novel fast-speed partial-shading-tolerant FPPT (PST-FPPT) algorithm is proposed in this article. Regarding the proposed scheme, a modified explicit PV model is developed to express the key operation points with the assistance of several representative current-voltage samples from the initialization process, which is beneficial to computational burden reduction and irradiance sensors removal. Additionally, to guarantee the tracking speed to system dynamics, a set point estimation-based direct voltage regulation strategy is proposed in this article, eliminating the redundant searching in approaching the predefined power command. Simulation and experimental evaluations under various PSCs and operational circumstances validated the effectiveness of the proposed control.</description><identifier>ISSN: 1949-3029</identifier><identifier>EISSN: 1949-3037</identifier><identifier>DOI: 10.1109/TSTE.2023.3303456</identifier><identifier>CODEN: ITSEAJ</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>Algorithms ; Complexity theory ; Curve fitting ; Electric potential ; Estimation ; Flexible power point tracking ; grid support ; Irradiance ; key points estimation ; Maximum power point trackers ; Maximum power tracking ; partial shading ; Photovoltaic cells ; photovoltaic system ; Photovoltaic systems ; Photovoltaics ; Power system stability ; Shading ; System dynamics ; Voltage ; Voltage control</subject><ispartof>IEEE transactions on sustainable energy, 2024-01, Vol.15 (1), p.466-485</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on sustainable energy, 2024-01, Vol.15 (1), p.466-485 |
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| source | IEEE Xplore Digital Library |
| subjects | Algorithms Complexity theory Curve fitting Electric potential Estimation Flexible power point tracking grid support Irradiance key points estimation Maximum power point trackers Maximum power tracking partial shading Photovoltaic cells photovoltaic system Photovoltaic systems Photovoltaics Power system stability Shading System dynamics Voltage Voltage control |
| title | Novel Fast-Speed Partial-Shading-Tolerant Flexible Power Point Tracking for Photovoltaic Systems With Explicit Key Points Estimation |
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