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Solar all-time single-axis tracking method

A full-time, solar energy technology, applied in the field of solar energy applications, can solve the problems of increased land occupation and unutilized solar energy, and achieve the effect of reducing the land occupation of power stations and overcoming inoperability

Inactive Publication Date: 2012-07-04
吴加林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this scheme is that the maximum utilization time of solar energy is only 6 hours from 9:00 to 15:00, and the solar energy from sunrise to 9:00 and from 15:00 to sunset is not utilized.
If you want to expand the tracking angle and increase the hours of solar energy utilization according to this scheme, according to the principle of trigonometric functions, you can know that the shading effect of its shadow will lead to a sharp increase in the occupied area

Method used

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  • Solar all-time single-axis tracking method
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  • Solar all-time single-axis tracking method

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Embodiment Construction

[0011] Let’s take the day of the summer solstice when the sunrise in a certain place is 6:00 a.m. and the sunset is 18:00 in the installation earth’s true solar time as an example to describe this method in detail:

[0012] see figure 1 , same as the existing solar azimuth single-axis tracking method, the direction of the X-axis is due east, and the tracking angle of the solar panel assembly is -45° to 45° from 9:00 to 15:00 true solar time on the day of installation. The starting position of the panel assembly 1 is -90°.

[0013] 1. From 6 o'clock to 9 o'clock at sunrise, the solar panel assembly 1 rotates from -90° to -45° at a speed of 15° / hour in the opposite direction to the sunlight rotation direction (clockwise in the figure) during this time °( figure 1 The position shown by the dotted line in the middle), the solar energy received by the solar panels is gradually increased from 0 to the maximum direct sunlight intensity.

[0014] The newly added accumulative solar ...

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Abstract

The invention relates to a solar all-time single-axis tracking method, belonging to the technical field of solar energy application. The azimuth of a solar cell panel component for receiving sunlight is basic azimuth from -45 DEG to 45 DEG from 9 o'clock to 15 o'clock on that very day at the installation site, and the solar cell panel component rotates in the following way during two time periods from sunrise to 9 o'clock and from 15 o'clock to sunset: (1) calculating the time from sunrise to 9 o'clock on that very day at the installation site so that the cell panel component rotates from -90 DEG to -45 DEG along the direction opposite to the sunlight rotation direction at a constant speed within the time; and (2) calculating the time from 15 o'clock to sunset on that very day at the installation site so that the cell panel component rotates from 45 DEG to 90 DEG along the direction opposite to the sunlight rotation direction at a constant speed within the time. The invention has the advantages of realizing solar all-day single-axis tracking and furthest utilizing solar energy.

Description

technical field [0001] The invention relates to solar automatic tracking technology. It belongs to the technical field of solar energy application. Background technique [0002] Chinese Patent Publication No. CN1693818A discloses a "method and device for fully automatic tracking of solar energy according to time control", which calculates the true solar time and declination angle of the local day according to the basic law of the earth's orbit around the sun, and thus Calculate the relationship between the sun's elevation angle and azimuth and its required tracking operation at regular intervals from sunrise to sunset, so that the battery module automatically returns to the azimuth of the next day's sunrise after sunset. The disadvantage of this method is that the structure of the operating system is complex and the cost is too high. Another one that is used more is the "azimuth single-axis tracking method". In order to obtain the smallest spacing between battery componen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12
Inventor 吴加林
Owner 吴加林