碟式斯特林太阳能热发电系统聚热器调焦方法

Focusing Methods of Solar-electric Dish Stirling System

当今世界经济高速发展,带来的必然是能源的大量消耗。而在能源变化形势日趋严峻的背景下,太阳能作为一种清洁环保、储量无穷的自然能源,得到了人们的广泛关注。太阳能利用主要包括光伏及光热两大范畴,而碟式斯特林太阳能热发电技术,由于其转换效率高、排放低、布置灵活等优势,在是整个光热发电领域中倍受青睐。本文从实际工程应用的角度出发,详细阐述了当前碟式斯特林太阳能热发电系统的多种调焦方法,并对其进行综合比较,分析每一种调焦方法的优缺点及适应场合,为后期碟式热发电技术的发展及大型碟式光热电站的安装调试提供参考。

Nowadays,the high-speed economic development has caused significant consumption of energy. While the energy change is getting severer,solar energy is taken as a clean,environmental friendly resource with infinite storage that has aroused a wide public concern. Photovoltaic and solar thermal are two main categories of solar energy applications. Because of its high conversion efficiency,low emission and flexible installation,dish Stirling solar energy power technology is more preferable to be used among the solar thermal area. From the view of practical engineering application,this paper illustrates multiple focusing methods of the current dish Stirling solar energy power systems in detail,and the comparison of these methods are given to analyze their advantages,disadvantages and their application scenarios. It can be used for the future development of dish Stirling solar energy power technology and applied as a reference for large dish solar thermal power plants＇ installations and tests.