Determination of Tracking Errors with Respect to the Geometrical Errors based on Optimization Algorithm

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• 作者：Feihu Sun ; Zhifeng Wang ; ^{zhifeng@vip.sina.com" class="auth_mail} ; Minghuan Guo ; Fengwu Bai ; Zijian Xu
• 关键词：BCS ; tracking angle ; geometrical errors ; optimization algorithm
• 刊名：Energy Procedia
• 出版年：2014
• 年：2014
• 卷：49
• 期：Complete
• 页码：2211-2220
• 全文大小：427 K

文摘

Accurate dual-axis sun tracking is the key feature of a heliostat and is critical for the performance of a solar tower power plant. The primary tracking errors with respect to the geometrical errors could be theoretically determined from the measurements of the BCS based on optimization algorithm. Tests are performed on two heliostats in DAHAN solar tower plant and analyses are performed to evaluate the comprehensive effect of the six angular geometrical errors on the heliostat tracking accuracy. The test results show that the altitude-azimuth tracking angle formulas for several fixed geometrical errors work well and have a effectiveness for a given period of time.