| Autor: |
Kok-Keong Chong, Chee-Woon Wong, Fei-Lu Siaw, Tiong-Keat Yew, See-Seng Ng, Meng-Suan Liang, Yun-Seng Lim, Sing-Liong Lau |
| Předmět: |
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| Zdroj: |
Sensors (14248220); 2009, Vol. 9 Issue 10, p7849-7865, 17p, 2 Color Photographs, 2 Black and White Photographs, 2 Diagrams, 1 Chart, 2 Graphs |
| Abstrakt: |
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 m2 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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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