Correction Method of Heliostat Reflection Facula Deviation

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...

AI Technical Summary

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:

Images