An accurate partial shading detection and global maximum power point tracking technique based on image processing

IF 0.7 Q3 ENGINEERING, MULTIDISCIPLINARY

Engineering Review Pub Date : 2022-01-01 DOI:10.30765/er.1636

A. Ryad, A. Atallah, A. Zekry

引用次数: 0

Abstract

This paper aims to detect the existence of partial shading conditions on the PV array and to estimate the vicinity of the global maximum power point for shaded PV modules based solely on the captured image of the PV modules. Detecting the existence of partial shading is based on comparing the average image pixel intensity for each PV module to find any mismatch in the incident irradiance. Estimating the incident irradiance level of each PV module is based on the camera response function with the help of a reference module. Furthermore, after estimating the irradiance intensity on the modules, we used the captured image for each PV module to detect the shaded area percentage. Detect the presence of partial shading conditions and estimating the position of the Global Maximum Power Point under partial shading was achieved with simple and cheap procedure yet effective at various shading patterns regardless of the environmental circumstances.

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一种基于图像处理的精确局部阴影检测和全局最大功率点跟踪技术

本文旨在检测光伏阵列上是否存在部分遮阳条件，并仅根据光伏组件的捕获图像估计遮阳光伏组件的全局最大功率点附近。检测部分遮阳的存在是基于比较每个光伏组件的平均图像像素强度，找出入射辐照度是否存在不匹配。根据相机响应函数，借助参考模块估算每个光伏组件的入射辐照度。此外，在估算出组件上的辐照强度后，我们使用每个光伏组件捕获的图像来检测阴影面积百分比。检测部分遮阳条件的存在和估计部分遮阳条件下全局最大功率点的位置是一个简单而廉价的过程，但在各种遮阳模式下，无论环境情况如何，都是有效的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Engineering Review ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： Engineering Review is an international journal designed to foster the exchange of ideas and transfer of knowledge between scientists and engineers involved in various engineering sciences that deal with investigations related to design, materials, technology, maintenance and manufacturing processes. It is not limited to the specific details of science and engineering but is instead devoted to a very wide range of subfields in the engineering sciences. It provides an appropriate resort for publishing the papers covering prior applications – based on the research topics comprising the entire engineering spectrum. Topics of particular interest thus include: mechanical engineering, naval architecture and marine engineering, fundamental engineering sciences, electrical engineering, computer sciences and civil engineering. Manuscripts addressing other issues may also be considered if they relate to engineering oriented subjects. The contributions, which may be analytical, numerical or experimental, should be of significance to the progress of mentioned topics. Papers that are merely illustrations of established principles or procedures generally will not be accepted. Occasionally, the magazine is ready to publish high-quality-selected papers from the conference after being renovated, expanded and written in accordance with the rules of the magazine. The high standard of excellence for any of published papers will be ensured by peer-review procedure. The journal takes into consideration only original scientific papers.