定日镜光斑动态漂移特性的研究  

RESEARCH OF DYNAMIC DRIFT CHARACTERISTICS OF HELIOSTAT SPOTS

作　　者：缪佩[1] 祝雪妹[1] 黄文君[2] 

机构地区：[1]南京师范大学电气与自动化工程学院,南京210042 [2]浙江大学智能系统与控制研究所,杭州310027

出　　处：《太阳能学报》2016年第8期2004-2011,共8页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(61273100);国家高技术研究发展专项经费(2013AA050201)

摘　　要：以塔式太阳能热发电系统中的定日镜为研究对象,首先提出一种基于光学反射原理的定日镜反射光斑中心计算方法;然后在理想情况下分析不同塔高、不同位置、不同时刻定日镜光斑中心点的动态变化规律,进一步考虑跟踪误差对定日镜反射光斑漂移特性的影响;最后对矩形全镜场中春分日不同时刻的光斑动态漂移特性进行仿真计算并得出相应结论,为有效实现定日镜的追日聚光跟踪控制和参数校正,提高追日跟踪精度及全境场的聚光效率提供理论依据。The heliostat of solar power tower system was chosen as the main research object. Firstly, the calculation method of the solar facular position formed by reflective rays of heliostats was proposed based on optical reflection principle; then the dynamic drift characteristics of the central point of heliostat spots in different tower height, different geometric position and time in ideal condition were analyzed; furthermore, the impact of tracking error on dynamic drift characteristics of heliostat reflection spots was discussed. Finally, the simulation calculation of dynamic drift characteristics of heliostat spots was performed at different times of Spring Equinox in rectangular whole heliostat field and the relevant conclusion was obtained, which provides the theoretical basis for effectively realizing tracking strategy and parameter correction of heliostat, improving the precision tracking sun and concentration efficiency in whole heliostat field.

关 键 词：塔式太阳能发电站 定日镜 光斑漂移 动态特性 

分 类 号：TM615[电气工程—电力系统及自动化]