Image-Based Differential Power Processing for Photovoltaic Microinverter

Mohammad K. Al-Smadi; Yousef Mahmoud

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Image-Based Differential Power Processing for Photovoltaic Microinverter

机译：Image-Based Differential Power Processing for Photovoltaic Microinverter

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摘要

Partial shading is a serious problem limiting the efficiency of photovoltaic (PV) systems. Differential power processing (DPP) architectures have been proposed to mitigate mismatch power losses caused by partial shading. However, maximum power point tracking (MPPT) for DPP converters is still an area of research. Instead of employing heuristic techniques, the proposed method is deterministic that can uniquely determine the respective maximum power points (MPPs) for the DPP Converters relying on the PV mathematical model and provided incident irradiances. The irradiances of the submodules are estimated using captured images obtained by an optical camera. Unlike the existing methods in literature which either produce fast transient response or accurate steady state tracking, the proposed method provides both fast transient response and accurate steady state output without oscillations. Moreover, the proposed approach does not need communication between converters or current sensing for the MPPT. The effectiveness of the proposed method is validated both by Simulink simulations and experimentally.

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来源
《IEEE Transactions on Energy Conversion》 |2021年第2期|619-628|共10页
作者
Mohammad K. Al-Smadi; Yousef Mahmoud;
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作者单位

Department of Electrical and Computer Engineering, Kennesaw State University, Marietta, GA, USA;

Department of Electrical and Computer Engineering, College of Engineering, The University of Alabama, Tuscaloosa, AL, USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类电工技术;
关键词
Cameras; Voltage control; Optical sensors; Temperature measurement; Optical imaging; Computer architecture; Differential power processing; optical camera; image processing; microinverter; MPPT; mismatch power losses; partial shading; photovoltaic system;

Image-Based Differential Power Processing for Photovoltaic Microinverter

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