Title :
Design and analysis of a novel heliostat structure
Author :
Zang, Chuncheng ; Wang, Zhifeng ; Liu, Xiaobing
Author_Institution :
Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing, China
Abstract :
Heliostat is a sun-tracking device in the solar power tower system and there are mainly two modes for heliostat to track the sun: azimuth-elevation mode and spinning-elevation mode. The heliostat tracking in the former mode has commonly been developed and applied. In this paper, the novel heliostat structure in the latter mode is presented. Furthermore, the static and dynamic performance of the heliostat structure under wind load is analyzed by means of the finite element method. Static analysis describes the intensity and rigidity performance of the structure and dynamic analysis presents the first several orders natural frequency and vibration mode, which provide theoretical basis for the structure optimization.
Keywords :
finite element analysis; solar energy concentrators; solar power stations; azimuth-elevation mode; finite element method; heliostat tracking; solar power tower system; spinning-elevation mode; static analysis describes; sun-tracking device; wind load; Costs; Engine cylinders; Finite element methods; Mirrors; Performance analysis; Poles and towers; Solar energy; Spinning; System testing; Wind power generation; Finite element methods; Heliostat; Solar power generation; Structural engineering;
Conference_Titel :
Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4934-7
DOI :
10.1109/SUPERGEN.2009.5348182
