Sun tracking control method suitable for shade and sun changes

A control method and control terminal technology, applied in the field of solar energy collection, can solve problems such as inaccurate tracking, and achieve the effect of improving efficiency and control accuracy

Pending Publication Date: 2020-06-16
ZHEJIANG SHENGUANG ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of decreasing fossil fuels, solar energy has become an important part of energy used by human beings and has been continuously developed; there are two ways to use solar energy: photothermal conversion and photoelectric conversion. Solar power generation is a new type of renewable energy; With the utilization of solar energy, solar tracking devices are also increasingly developed. The existing sun tracking methods cannot accurately track the sun when the weather is gloomy or the clouds alternately block the sun.

Method used

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  • Sun tracking control method suitable for shade and sun changes
  • Sun tracking control method suitable for shade and sun changes
  • Sun tracking control method suitable for shade and sun changes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The invention discloses a sun tracking control method suitable for cloudy or sunny changes. In the specific implementation of the invention, the following steps are included:

[0043] S1: Establish a pixel coordinate system xOy with latitude and longitude values ​​as variables at the control terminal;

[0044] S2: Establish an electrical signal connection between the control terminal and the real-time updated database; under normal circumstances, the time unit of the control terminal identifies whether it is daytime, and if it is daytime and sunny, the control terminal starts the photoelectric tracking subroutine in the sun tracking device The photoelectric tracking unit in the sun tracking device always points in the direction of the sun, and converts the trajectory of the photoelectric tracking unit into the reference variable of the sun’s trajectory, and saves it in the database of the control terminal; if it is daytime and it is cloudy or When it is cloudy, start th...

Embodiment 2

[0060] like Figure 1-Figure 6 As shown, in a specific embodiment of the present invention, the solar tracking device 1 includes a frame 11, a control terminal 12, a photodetector 13, an angle control unit 14, and a stroke protection unit 15; the photodetector 13, the angle control unit Both the unit 14 and the stroke protection unit 15 are installed on the frame 11 , and the photodetector 13 , the angle control unit 13 and the stroke protection unit 15 are all electrically connected to the control terminal 12 .

[0061] In a specific embodiment of the present invention, the control terminal 12 includes an input display unit 121, a control program 122, and a time unit 123; the output display unit 121, the time unit 122 and the drive unit 123 are all electrically connected to the control program 122; The control program 122 includes a photoelectric tracking subroutine 1221 , an apparent solar trajectory subroutine 1222 and an integrated circuit subroutine 1223 .

[0062] In a ...

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PUM

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Abstract

The invention relates to a sun tracking control method suitable for shade and sun changes. The sun tracking control method is characterized by comprising the following steps: S1, a pixel coordinate system xOy with longitude and latitude numerical values as variables is established at a control terminal; S2, electric signal connection is established between the control terminal and a database updated in real time; a time unit of the control terminal identifies whether to be daytime, and if to be daytime and a sunny day, the control terminal starts a photoelectric tracking subprogram in the suntracking device, if to be daytime and a cloudy or overcast day, a sun track subprogram in the sun tracking device is started, and if to be night, the sun tracking device is controlled to stop runningby the control terminal; S3, when the sun track subprogram needs to be upgraded, maintained and repaired in the daytime, the control terminal starts a photoelectric tracking subprogram in the sun tracking device; and S4, a limit switch on the solar tracking device can connect or disconnect a control circuit of the solar tracking device. Accurate sun position tracking in cloudy and overcast days iseffectively realized, and the solar energy utilization rate is improved.

Description

technical field [0001] The invention relates to the technical field of solar energy collection, in particular to a sun tracking control method suitable for cloudy or sunny changes. Background technique [0002] Solar energy is produced by hydrogen-helium fusion of hydrogen atoms inside the sun and releases huge nuclear energy. It comes from the radiant energy of the sun; since the birth of life on the earth, it has mainly survived on the thermal radiation energy provided by the sun, and since ancient times humans have also known how to use sunlight Dry objects and use them as a method of making food, such as making salt and drying salted fish. In the case of decreasing fossil fuels, solar energy has become an important part of energy used by human beings and has been continuously developed; there are two ways to use solar energy: photothermal conversion and photoelectric conversion. Solar power generation is a new type of renewable energy; With the utilization of solar ener...

Claims

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Application Information

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IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 余美权
Owner ZHEJIANG SHENGUANG ELECTRICAL
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