Solar panel control method

Abstract

The invention discloses a solar panel control method which comprises the following steps of: (a) using a computer and establishing a coordinate system; (b) arranging a spherical hinge in the center of the bottom surface of a solar panel for supporting, respectively arranging one auxiliary support rod at the negative ends of the east-west direction and the north-south direction of the solar panels, arranging one vertical rack at each positive end of the solar panel, and arranging two motors to respectively drive one gear to be respectively engaged with the two vertical racks, wherein the two motors are connected with the computer and controlled by the computer; (c) taking a picture of the sky by using an imaging device, (d) analyzing the taken picture to obtain the coordinate position of the brightest point of the image in the coordinate system; and (e) calculating by using the computer according to the coordinate position of the brightest point in the image, and controlling the two motors to drive the solar panel to rotate to the position right against the brightest point in the sky through the gear and the racks. The invention has the advantages of accurate tracking and high reliability.

Description

[0001] Technical field [0002] The invention relates to the technical field of solar energy application, in particular to a control method for solar panels to track the sun. [0003] Background technique [0004] In the current systems that use solar energy for photovoltaic power generation and solar water heating, the installation direction of solar panels is generally fixed according to the local sunshine conditions, so most of the time the sun’s rays and the solar panel’s light-facing surface are not completely perpendicular. The utilization and conversion rate of solar energy is low. In order to improve the absorption and conversion efficiency of solar panels, some methods and technologies are used to automatically track the direction of the sun so that the sun's rays are directed to the solar panels as perpendicularly as possible. These technologies can be roughly divided into two categories. One type is to use photoresistors, photodiodes, light sensors, etc., in conjuncti...

AI Technical Summary

Problems solved by technology

However, this type of method has the following problems: the accuracy of the perceived sun direction is not high, the tracking is not accurate enough, and the solar panels must be returned at night, etc.

For example, the active solar tracking method and device announced in Chinese Patent No. 200910100808.6 and the toothed belt transmission group synchronously tracking solar automatic tracking device based on the orbit of the earth and the sun announced in 200910086319. Tracking, the problems of this type of method are: first, the sun’s irradiation angles are different in different places, so different regions must record different sun trajectory information and operate according to different information, and the workload is heavy; It is more complicated; the third is that the sun's rays do not have obvious directivity in cloudy and rainy days, but the motor system still consumes power to work

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