A self-focus high precision scheme applied to HCPV solar center tracker

Yiing Yuh Lin, Fu Mao Jhuang

研究成果: Conference contribution

摘要

An image processor with a self-focus scheme to estimate the center of the solar disc is presented in this chapter. It can be utilized in the automatic tracking module on a HCPV power generation unit to closely follow the solar center with high precision under various weather conditions. To start the proposed procedures, a photo containing the solar image is taken first by a digital sensing device. Then, it is sent to the algorithm and goes through a series of steps to identify and to isolate the solar image. Finally, the solar center is located by the three-point center method. The proposed scheme, based on a weighted brightness factor of the image, evaluates the image center by comparing the estimated solar diameter to the reference one and iteratively modifies the thresholds in the image isolation step. The results show total processing time can be a fraction of a second and the estimation accuracy reaches to less than an arc second, depending on the pixels in the taken photo.

原文English
主出版物標題Proceedings of the 3rd International Conference on Intelligent Technologies and Engineering Systems, ICITES 2014
編輯Jengnan Juang
發行者Springer Verlag
頁面437-443
頁數7
ISBN(列印)9783319173139
DOIs
出版狀態Published - 2016 一月 1
事件3rd International Conference on Intelligent Technologies and Engineering Systems, ICITES 2014 - Kaohsiung, Taiwan
持續時間: 2014 十二月 192014 十二月 21

出版系列

名字Lecture Notes in Electrical Engineering
345
ISSN(列印)1876-1100
ISSN(電子)1876-1119

Other

Other3rd International Conference on Intelligent Technologies and Engineering Systems, ICITES 2014
國家Taiwan
城市Kaohsiung
期間14-12-1914-12-21

All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering

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  • 引用此

    Lin, Y. Y., & Jhuang, F. M. (2016). A self-focus high precision scheme applied to HCPV solar center tracker. 於 J. Juang (編輯), Proceedings of the 3rd International Conference on Intelligent Technologies and Engineering Systems, ICITES 2014 (頁 437-443). (Lecture Notes in Electrical Engineering; 卷 345). Springer Verlag. https://doi.org/10.1007/978-3-319-17314-6_56