Campo: Generation of regular heliostat fields
Campo: Generation of regular heliostat fields
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DOI：
10.1016/j.renene.2012.03.011
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发表时间：
2012-10
期刊：
影响因子：
8.7
通讯作者：
F. Collado;J. Guallar
中科院分区：
文献类型：
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作者：
F. Collado;J. Guallar
太阳能发电塔定日镜场地整体设计与优化的主要问题是，在优化过程的每个阶段，在对定日镜布局进行修改时，需要重新计算场地中每个定日镜的遮阳和遮挡。为了简化这一复杂问题的解决，本文提出了一种新的定日镜设计和性能分析代码campo。代码campo基于Matlab类型的单元数据结构，能够生成规则但灵活的定日镜场径向交错布局。campo的一个主要特点是能够快速准确地计算野外每一个定日镜的遮阳和遮挡系数。此外，代码的数据结构允许有效地选择相关的遮挡和阴影邻居，即使布局正在改变。本文将对这两个特点进行深入分析。在这个新代码中，优化将从最密集的字段（具有最差的阴影和阻塞因子）开始，向扩展字段进行。几个选项逐渐扩大开始密集布局成功检查。这个代码将允许一个完整的优化过程，其中数以千计的定日镜坐标将实际包含在最优搜索中。
The main problem in the full design and optimization of heliostats fields for Solar Power Tower (SPT) systems is the recalculation of the shadings and blockings for each heliostat in the field at every stage of the optimization process while the layout is being modified. To make easier the solution to this complex problem, a new code, called campo, for the design and performance analysis of heliostat fields, is presented in this paper. The code campo, based on the Matlab type cell data structure, is able to generate regular but flexible radial staggered layouts of heliostat fields. A major feature of campo is the ability to perform fast and accurate calculations of the shadowing and blocking factor for each and every one of the heliostats in the field. Further, the data structure of the code allows an efficient selection of the relevant blocking and shading neighbours even while the layout is being changed. Both distinctive features are analysed here in depth. In this new code, the optimization would proceed from densest fields, with the worst shadowing and blocking factor, towards expanded fields. Several options to gradually expand the starting dense layouts are successfully checked. This code would allow a full optimization process in which the thousands of heliostat coordinates would be actually included in the optimum search.