https://scholars.lib.ntu.edu.tw/handle/123456789/581033
標題: | Segmented Differential Power Processing Converter Unit and Control Algorithm for Photovoltaic Systems | 作者: | |KATHERINEANN KIM | 關鍵字: | Efficiency; Large scale systems; Lighting; Maximum power point trackers; Photovoltaic cells; Differential power; Flyback converters; High-voltage ratings; Lighting conditions; Maximum power point tracking controls; Mismatched conditions; Photovoltaic systems; PV power generation; Solar power generation | 公開日期: | 2021 | 卷: | 36 | 期: | 7 | 起(迄)頁: | 7797-7809 | 來源出版物: | IEEE Transactions on Power Electronics | 摘要: | Differential power processing (DPP) for photovoltaic (PV) systems can achieve high system efficiency and maintain maximum power production even under mismatched conditions. However, DPP converters applied to large-scale systems have challenges of complicated installation and high voltage ratings. The segmented DPP structure is introduced as a modular approach that utilizes groups of bidirectional DPP flyback converters to maximize PV power generation while minimizing converter power loss. Groups of four DPP converters are combined into a segmented DPP unit with maximum power point tracking (MPPT) control to maximize output power of the unit. The segmented DPP system and control algorithm are verified through simulation and hardware experimentation. Simulation results verify the effectiveness of the control algorithm with multiple segmented DPP units interacting with a typical inverter employing MPPT. Experimental results verify that system efficiency of the segmented DPP unit reaches 96.4% in even lighting conditions, reaches 92.7% in severe partial shading conditions, and shows an increase of up to 14.8% in uneven lighting conditions compared to an equivalent series-connected PV system. ? 1986-2012 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098780607&doi=10.1109%2fTPEL.2020.3044417&partnerID=40&md5=c8d78fbff83f9989db1f3ee31e22ba97 https://scholars.lib.ntu.edu.tw/handle/123456789/581033 |
ISSN: | 08858993 | DOI: | 10.1109/TPEL.2020.3044417 | SDG/關鍵字: | Efficiency; Large scale systems; Lighting; Maximum power point trackers; Photovoltaic cells; Differential power; Flyback converters; High-voltage ratings; Lighting conditions; Maximum power point tracking controls; Mismatched conditions; Photovoltaic systems; PV power generation; Solar power generation |
顯示於: | 電機工程學系 |
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