太阳及定日镜运动规律的数值模拟分析
首发时间:2018-04-04
摘要:定日镜作为塔式太阳能热发电系统的核心部件,主要用来跟踪太阳运动,因此太阳及定日镜运动规律的研究意义重大。该文以MATLAB软件为仿真工具,分析并修正了一般太阳位置计算方法,推导了定日镜的跟踪角度公式,并基于此开展太阳、定日镜运动规律的探索性研究。选择中国德令哈地区为具体算例,仿真太阳在典型日的运动规律,最后以镜场正北方向的定日镜为例,探讨定日镜在典型日的运动规律。研究结果将给定日镜跟踪控制器的开发、镜场布局优化设计以及镜场调度的研究提供一定的基础性理论支撑。
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Numerical simulation analysis of sun and heliostat movement
Abstract:As a core component of the tower solar thermal power system, heliostats are mainly used to track the movement of the sun. Therefore, the study of the laws of the solar and heliostat movement is of great significance. This paper uses MATLAB software as a simulation tool to analyze and modify the general sun position calculation method, deduces the heliostat\'s tracking angle formula, and based on this carries out the exploratory study of the solar and heliostat motion laws. The Delingha region of China was selected as a specific example to simulate the movement of the sun on a typical day. Finally, the heliostat in the north direction of the mirror field was taken as an example to discuss the regularity of heliostat movement on a typical day. The research results provide certain basic theoretical support for the development of a given mirror tracking controller, the optimization of mirror field layout, and the research of mirror field scheduling.
Keywords: Tower power station Sun position Heliostat Simulation Law of motion
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