Method and system for calibrating and adjusting heliostat

A technology for calibration and adjustment of heliostats, applied in the direction of use feedback control, etc., can solve the problems that the tracking effect of heliostats does not give a monitoring method, and the reflection of heliostats cannot be monitored, etc., to achieve outstanding substantive features and design principles Reliable, Simple Effects

Active Publication Date: 2022-01-04
国网山东省电力公司东平县供电公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It is impossible to monitor whether the adjustment of the heliostat made by tracking the sun can reflect sunlight to the collector, that is, there is no monitoring method for the tracking effect of the heliostat; it is impossible to determine whether the heliostat is based on After the sun's trajectory is adjusted, can it continue to reflect sunlight to the surface of the collector?

Method used

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  • Method and system for calibrating and adjusting heliostat
  • Method and system for calibrating and adjusting heliostat

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Experimental program
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Embodiment 1

[0041] Such as figure 1 and 2 As shown, the calibration and adjustment system of a heliostat provided in this embodiment includes:

[0042] Actively adjust the angle of the heliostat module, which actively adjusts the angle of the heliostat 1 according to the angle of sunlight, first obtains the incident angle of the sun’s rays relative to the ground, which is denoted as A; then obtains the light emitted by the heliostat 1 The incident angle of the collector relative to the ground is denoted as B; finally adjust the angle of the heliostat relative to the ground, denoted as C;

[0043] Among them, C=90°-(0.5*A+0.5B);

[0044] Modified Adjust Heliostat Angle module, which includes:

[0045] The upper light intensity detector 3 located above the heat collector 2, the lower light intensity detector 4 located below the heat collector 2, the light intensity collection device 5 located on the heliostat, and the upper reflector is also arranged above the heat collector 6. There is...

Embodiment 2

[0051] This embodiment also provides a method for calibrating and adjusting a heliostat, including the following steps:

[0052] Step S1: a step of actively adjusting the angle of the heliostat according to the angle of sunlight, which includes the following steps:

[0053] S11: Obtain the incident angle of the sun's rays relative to the ground, denoted as A;

[0054] S12: Obtain the incidence angle of the light emitted by the heliostat to the collector relative to the ground, denoted as B;

[0055] S13: Adjust the angle of the heliostat relative to the ground, denoted as C;

[0056] Among them, C=90°-(0.5*A+0.5B);

[0057] Step S2: a step of correcting and adjusting the angle of the heliostat, which includes the following steps:

[0058] S21: Obtain the detection intensity of the upper end of the light above the heat collector, and the detection intensity of the lower end of light below the heat collector;

[0059] S22: If the change value of the light intensity of the up...

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Abstract

The invention belongs to the technical field of calibration regulation and control, and relates to a method and a system forcalibrating and adjusting a heliostat. The system comprises: an active heliostat angle regulata ion module which actively regulates the angle of the heliostat according to the sunlight irradiation angle; and a heliostat angle correcting and adjusting module used for judging the change value of the illumination intensity received by each heliostat, and if the change value of the illumination intensity received by each heliostat exceeds a preset threshold value, determining that the heliostat with the change value of the illumination intensity exceeding the preset threshold value is the heliostat reflecting solar rays out of the heat collector, and adjusting the heliosta to make solar rays reflected by the heliostat return to the surface of the heat collector. The reflection angle of the heliostat can be monitored.

Description

technical field [0001] The invention belongs to the technical field of calibration regulation, and relates to a calibration regulation method and system, in particular to a heliostat calibration method and system. Background technique [0002] A heliostat refers to an optical device that reflects light from the sun or other celestial bodies in a fixed direction, and is used in the field of solar tower photothermal power generation technology. The heliostat follows the direction of solar energy, adjusts the angle at all times, and emits sunlight into the collector of the solar tower. The working medium in the collector absorbs the heat of sunlight and transfers the heat to the water medium. After absorbing heat, it is converted into steam, and the steam drives the turbine to generate electricity, realizing the technical purpose of generating electricity through solar energy, a clean energy. [0003] In the whole process of using solar power to generate electricity, whether t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 郭烨陈波范玲琪尹超孙启建郭龙龙
Owner 国网山东省电力公司东平县供电公司
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