Integration of an On-Axis General Sun-Tracking Formula in the Algorithm of an Open-Loop Sun-Tracking System

A novel on-axis general sun-tracking formula has been integrated in the algorithm of an open-loop sun-tracking system in order to track the sun accurately and cost effectively. Sun-tracking errors due to installation defects of the 25 m(2) prototype solar concentrator have been analyzed from recorde...

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Autores principales: Chong, Kok-Keong, Wong, Chee-Woon, Siaw, Fei-Lu, Yew, Tiong-Keat, Ng, See-Seng, Liang, Meng-Suan, Lim, Yun-Seng, Lau, Sing-Liong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2009
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3292086/
https://www.ncbi.nlm.nih.gov/pubmed/22408483
http://dx.doi.org/10.3390/s91007849
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author Chong, Kok-Keong
Wong, Chee-Woon
Siaw, Fei-Lu
Yew, Tiong-Keat
Ng, See-Seng
Liang, Meng-Suan
Lim, Yun-Seng
Lau, Sing-Liong
author_facet Chong, Kok-Keong
Wong, Chee-Woon
Siaw, Fei-Lu
Yew, Tiong-Keat
Ng, See-Seng
Liang, Meng-Suan
Lim, Yun-Seng
Lau, Sing-Liong
author_sort Chong, Kok-Keong
collection PubMed
description A novel on-axis general sun-tracking formula has been integrated in the algorithm of an open-loop sun-tracking system in order to track the sun accurately and cost effectively. Sun-tracking errors due to installation defects of the 25 m(2) prototype solar concentrator have been analyzed from recorded solar images with the use of a CCD camera. With the recorded data, misaligned angles from ideal azimuth-elevation axes have been determined and corrected by a straightforward changing of the parameters' values in the general formula of the tracking algorithm to improve the tracking accuracy to 2.99 mrad, which falls below the encoder resolution limit of 4.13 mrad.
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spelling pubmed-32920862012-03-09 Integration of an On-Axis General Sun-Tracking Formula in the Algorithm of an Open-Loop Sun-Tracking System Chong, Kok-Keong Wong, Chee-Woon Siaw, Fei-Lu Yew, Tiong-Keat Ng, See-Seng Liang, Meng-Suan Lim, Yun-Seng Lau, Sing-Liong Sensors (Basel) Article A novel on-axis general sun-tracking formula has been integrated in the algorithm of an open-loop sun-tracking system in order to track the sun accurately and cost effectively. Sun-tracking errors due to installation defects of the 25 m(2) prototype solar concentrator have been analyzed from recorded solar images with the use of a CCD camera. With the recorded data, misaligned angles from ideal azimuth-elevation axes have been determined and corrected by a straightforward changing of the parameters' values in the general formula of the tracking algorithm to improve the tracking accuracy to 2.99 mrad, which falls below the encoder resolution limit of 4.13 mrad. Molecular Diversity Preservation International (MDPI) 2009-09-30 /pmc/articles/PMC3292086/ /pubmed/22408483 http://dx.doi.org/10.3390/s91007849 Text en © 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Chong, Kok-Keong
Wong, Chee-Woon
Siaw, Fei-Lu
Yew, Tiong-Keat
Ng, See-Seng
Liang, Meng-Suan
Lim, Yun-Seng
Lau, Sing-Liong
Integration of an On-Axis General Sun-Tracking Formula in the Algorithm of an Open-Loop Sun-Tracking System
title Integration of an On-Axis General Sun-Tracking Formula in the Algorithm of an Open-Loop Sun-Tracking System
title_full Integration of an On-Axis General Sun-Tracking Formula in the Algorithm of an Open-Loop Sun-Tracking System
title_fullStr Integration of an On-Axis General Sun-Tracking Formula in the Algorithm of an Open-Loop Sun-Tracking System
title_full_unstemmed Integration of an On-Axis General Sun-Tracking Formula in the Algorithm of an Open-Loop Sun-Tracking System
title_short Integration of an On-Axis General Sun-Tracking Formula in the Algorithm of an Open-Loop Sun-Tracking System
title_sort integration of an on-axis general sun-tracking formula in the algorithm of an open-loop sun-tracking system
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3292086/
https://www.ncbi.nlm.nih.gov/pubmed/22408483
http://dx.doi.org/10.3390/s91007849
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