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Calibration method, device and system for a heliostat

A calibration method and technology of heliostats, which are applied in the field of solar power generation, can solve problems affecting the calibration efficiency of heliostats, complicated processing methods, and interference from mechanical errors, so as to reduce calibration costs, increase calibration efficiency, and avoid interference from mechanical errors Effect

Active Publication Date: 2021-03-26
深圳中科能投能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is complex and takes a long time. When the heliostat field contains thousands of heliostats, it greatly affects the calibration efficiency of the heliostat.
And each calibration needs to turn the heliostat through a certain angle, which introduces the interference of mechanical errors

Method used

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  • Calibration method, device and system for a heliostat
  • Calibration method, device and system for a heliostat
  • Calibration method, device and system for a heliostat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] figure 1 It is a flow chart of the calibration method of the heliostat provided in the first embodiment of the present invention. This embodiment is applicable to the calibration of the heliostat, and the method can be executed by the calibration device of the heliostat provided in the embodiment of the present invention. The device can be realized by means of software and / or hardware, and can be integrated into the calibration system of the heliostat.

[0066] like figure 1 As shown, the calibration method of the heliostat includes:

[0067] S110. Send a motion control signal to the flying device, and control the flying device to move according to the motion control signal; wherein, the flying device is attached with an image acquisition device.

[0068] Wherein, the flying device can be an unmanned aerial vehicle, a larger-scale helicopter, or other devices that can fly in the heliostat field. The flying device is controlled to move according to the motion control ...

Embodiment 2

[0091] Figure 4 It is a structural schematic diagram of a calibration device for a heliostat provided in Embodiment 2 of the present invention. like Figure 4 As shown, the calibration device of the heliostat includes:

[0092] The motion control signal sending module 410 is configured to send a motion control signal to the flying device, and control the flying device to move according to the motion control signal; wherein, the flying device is attached with an image acquisition device, and the motion control signal includes a motion speed and direction of motion;

[0093] An information acquisition module 420, configured to acquire the image information collected by the image acquisition device and the position information of the image acquisition device during the movement of the flying device;

[0094] A visual algorithm module 430, configured to determine the position information of the spot profile reflected by each heliostat according to the image information;

[00...

Embodiment 3

[0114] The embodiment of the present invention also provides a calibration system for heliostats, including a heat collection tower, on which a heat collector is arranged, and the heat collector is used to receive sunlight reflected by the heliostat; the heliostat field is composed of at least one formed of heliostats for reflecting the sun's rays onto said collector; also comprising:

[0115] The flying device is used to carry the image acquisition device through the detachable vertical frame for image acquisition during the movement;

[0116] The image acquisition device is composed of at least one image acquisition device, installed on the detachable vertical frame, and used to acquire image information;

[0117] A communication device, used for communication connection between the control device and the flying device and the image acquisition device;

[0118] The control device is configured to execute the method for calibrating the heliostat in any embodiment of the pres...

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PUM

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Abstract

The embodiment of the invention discloses a heliostat calibration method, device and system. The method includes: sending a motion control signal to the flying device, controlling the flying device to move according to the motion control signal; wherein, the flying device is attached with an image acquisition device; during the movement of the flying device, acquiring the The image information collected by the image acquisition device, and obtaining the position information of the image acquisition device; according to the image information, determine the position information of the spot profile reflected by each heliostat; The position information of the light spot profile is used to determine the calibration parameters of each of the heliostats, and to calibrate each of the heliostats. By adopting the technical solution provided by the embodiment of the present invention, it is possible to achieve high calibration efficiency and high precision for the heliostat, and at the same time avoid the interference of the mechanical error caused by the rotation of the heliostat during calibration, and reduce the The effect of the calibration cost.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of solar power generation, and in particular to a method, device and system for calibrating a heliostat. Background technique [0002] With the rapid development of economy, human society pays more and more attention to energy issues, especially the utilization of solar energy. [0003] In central tower collector power plants, the collector on top of the collector tower receives sunlight reflected from a field of heliostats. The collector converts the energy into high-pressure, high-temperature steam output, which can then be sent to a turbine for electricity generation. Heliostats are generally installed on the ground around the tower. Each heliostat has a rigid reflective surface to track the sun, and the surface is oriented to the sun during the day to keep reflecting moving sunlight to the collectors. Highly accurate tracking of the sun is required to reduce reflected light s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/00F24S2050/25
Inventor 孙海翔赵晓东滕广平夏越段谦君李宜康
Owner 深圳中科能投能源有限公司