Fast focusing method for installation of mirror unit of solar disc condenser

Abstract

The invention discloses a fast focusing method for installation of a mirror unit of a solar disc condenser. The fast focusing method comprises the implementation steps that (1) databases with the spatial position errors and focusing spot features of the mirror unit in one-to-one correspondence are established; (2) the condenser is in the state of tracking the sun, an image acquisition system obtains a focusing spot image condensed on a focal plane receiving target independently by the mirror unit to be focused, and the focusing spot image is treated for obtaining the focusing spot features; and (3) the focusing spot features obtained in the step (2) are compared with the databases with the identical mirror unit number established in the step (1) so as to obtain the corresponding mirror unit spatial position errors matched with the focusing spot features and adjustment lengths of ball joint bolts of the mirror unit, so that quantitative adjustment for the mirror unit is conducted. The mirror unit is easy to focus, the rotation error of the mirror unit can be eliminated in a one-step mode, and the fast focusing method for the installation of the mirror unit of the solar disc condenser can effectively adapt to the efficient and low-cost focusing needs of solar focusing systems of our country.

Description

technical field [0001] The invention relates to the field of solar thermal power generation, in particular to a fast focusing method for installing a mirror unit of a solar dish concentrator. Background technique [0002] Dish / Stirling solar thermal power generation system (DS-CSP) has the characteristics of high photoelectric conversion efficiency, flexible layout and high degree of modularization, and is one of the important equipment for the efficient development of solar energy resources. The concentrator of DS-CSP is composed of several mirror units spliced ​​to form a parabolic surface, which is used to realize the directional transmission and efficient concentration of solar light energy. In essence, the concentrator is a set of precision optical devices, but limited by the precision of the fabrication and installation of the concentrator grid structure, the focusing process during the installation of the mirror unit is necessary. In addition, the concentrator works ...

AI Technical Summary

Problems solved by technology

The core part of it is to establish an experience database, but this patent does not disclose the specific content and establishment method of the database, resulting in poor implementability of the technology, and the technology is also based on qualitative guidance and adjustment, and cannot accurately inform the operator of the mirror surface. The adjustment amount and adjustment sequence of the unit, the overall adjustment efficiency needs to be further improved

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