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Heliostat reflecting facula offset correction method

A heliostat and light spot technology, applied in position/direction control, non-electric variable control, instruments, etc., can solve the problems of being susceptible to interference and high price of heliostat correction technology, achieving low cost and strong ability to resist environmental interference , to meet the effect of industrial field application

Inactive Publication Date: 2013-10-09
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0005] The purpose of the present invention is to solve the disadvantages of high price and susceptibility to interference of the existing heliostat correction technology described in the background technology, and propose a heliostat reflection spot deviation correction device and method thereof, and its technical solution is:

Method used

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  • Heliostat reflecting facula offset correction method
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  • Heliostat reflecting facula offset correction method

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific examples.

[0043] The heliostat reflection spot deviation correction device includes the heat collection tower 2 of the tower solar thermal power station, the heliostat field and the heliostat control system, the photosensitive array 3 and the photosensitive array detection system. figure 1 It is a schematic diagram of the optical path of the heliostat reflection spot deviation correction device used in the present invention. The heliostat 1 is the corrected heliostat in the heliostat field, the heat collector is placed on the top of the heat collection tower 2, and the photosensitive array 3 is placed on the The bottom of the heating surface 4 is installed on the heat collecting tower 2 in the same direction, the vertical centerline of the photosensitive array 3 coincides with the vertical centerline of the heat collector heating surface 4, the photosensiti...

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Abstract

The invention discloses a heliostat reflecting facula offset correction method and belongs to the technical field of solar tower type thermal generating. According to the heliostat reflecting facula offset correction method, a heliostat reflecting facula offset correction device and a heliostat tracking offset database of the heliostat reflecting facula offset correction device are used for carrying out heliostat reflecting facula offset correction. The azimuth angle and the angle of pitch of a heliostat are adjusted and corrected by means of data on the ideal azimuth angle, the ideal angle of pitch, azimuth angle correction and angle of pitch correction of the heliostat in a heliostat tracking offset database based on relevant characteristics of tracking offset of the heliostat and the angle of pitch and the azimuth angle of the heliostat so as to achieve heliostat reflecting facula offset correction. The correction device and the heliostat tracking offset database of the correction device are low in cost and capable of resisting interference by ambient light and procedures of correcting heliostat reflecting facula offset are simple. The requirement for industrial on-spot application can be met. The heliostat reflecting facula offset correction method is suitable for heliostat reflecting facula offset correction of a heliostat tracking system of a tower type solar thermal generating station.

Description

technical field [0001] The invention belongs to the technical field of solar tower thermal power generation, and in particular relates to a method for correcting reflection spot deviation of a heliostat. Background technique [0002] The heliostat field is an important part of the power generation system of the tower-type solar thermal power station. Many heliostats reflect sunlight and gather it on the collector on the top of the receiving tower, heat the working fluid, and generate high-temperature, high-pressure steam to generate electricity. The sun tracking accuracy of heliostats is an important research topic in the field of tower solar thermal power generation. The current pitch angle and azimuth angle of the heliostat can be accurately calculated through astronomical formulas. However, there are inevitably various errors in the process of manufacturing, installation and operation, such as ground settlement, wind load, gravity deformation and other factors. The helio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/00
Inventor 宋记锋吴俊杰杨勇平
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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