A heliostat secondary reflection pointing correction system and method

A technology of secondary reflection and correction system, applied in solar heating system, solar ray concentration, control using feedback, etc., to achieve the effect of optimizing correction steps and providing correction accuracy
CN109508044BActive Publication Date: 2022-03-29SHANGHAI PARASOL RENEWABLE ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI PARASOL RENEWABLE ENERGY CO LTD
Publication Date
2022-03-29

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Abstract

The invention relates to a heliostat secondary reflection pointing correction system and method, at least including a target, an image acquisition system and a host computer, the target is installed in the center of the focal plane of the heat absorber, and the target irradiation range covers the secondary reflector The image acquisition system is fixed on the mirror surface of the heliostat, the field of view direction is in the same direction as the reflection surface of the heliostat, the optical axis vector of the image acquisition system is parallel to the mirror normal vector of the heliostat, and the host computer Connect all the heliostats with the image acquisition system to obtain the data of the image acquisition system and control the rotation of the heliostats. The invention uses the image acquisition system installed on the mirror surface of the heliostat to shoot the target (high-brightness light source or marker) at the focal plane of the heat absorber to correct the secondary reflection and pointing of the heliostat, which can satisfy all existing conditions in the entire mirror field. The heliostats installed with the image acquisition system are corrected at the same time.
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Description

technical field

[0001] The invention relates to a heliostat secondary reflection pointing correction system and method, and belongs to the technical field of heliostat secondary reflection pointing correction. Background technique

[0002] Secondary reflection solar thermal power generation technology is a new type of tower solar power generation technology. A secondary reflection tower is installed in the center of the mirror field of the secondary reflection solar thermal power station, and a secondary reflection mirror disk is installed on the tower. The heliostat reflects the solar spot to the secondary reflector disk to complete the primary reflection, and then reflects it to the heat absorber installed near the ground through the secondary reflector disk to complete the secondary reflection to obtain solar energy with higher energy density for use Power generation, so the tower secondary reflector is one of the key factors affecting power generation efficiency. Reflec...

Claims

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