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作者:

Du, Chun-Xu (Du, Chun-Xu.) | Wu, Yu-Ting (Wu, Yu-Ting.) (学者:吴玉庭) | Wang, Pu (Wang, Pu.) | Ma, Chong-Fang (Ma, Chong-Fang.)

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摘要:

The solar power tower system is an attractive method for electrical power generation on a large-scale, and offers significant performance advantages over line-focus systems. The tracking control of heliostats is one of key technologies of power tower system. Firstly, this paper presents the formulae of tracking angle and incidence angle of heliostats based on position in mirror field by vector analysis, which can be made use of optical efficiency analysis such as cosine factor and shading and blocking factor. Then, the changing trend and speed of heliostats' tracking angle was analyzed, furthermore, which is convenient for customizing tracking strategy and designing mechanical structure of heliostats. Finally, statistical analysis of heliostat tracking angle error as a result of tracking controller' longitude and latitude setting error was done, which can be used of determining control region.

关键词:

Errors Error analysis Towers Solar energy Navigation Mirrors

作者机构:

  • [ 1 ] [Du, Chun-Xu]Key Laboratory of Heat Transfer and Energy Conversion, Beijing Municipality, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 2 ] [Wu, Yu-Ting]Key Laboratory of Heat Transfer and Energy Conversion, Beijing Municipality, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 3 ] [Wang, Pu]Key Laboratory of Heat Transfer and Energy Conversion, Beijing Municipality, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
  • [ 4 ] [Ma, Chong-Fang]Key Laboratory of Heat Transfer and Energy Conversion, Beijing Municipality, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

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来源 :

Journal of Engineering Thermophysics

ISSN: 0253-231X

年份: 2012

期: 9

卷: 33

页码: 1575-1579

ESI学科: PHYSICS;

JCR分区:4

中科院分区:4

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