Double-shaft tracking system of solar cell panel and tracking method thereof

Abstract

The invention discloses a double-shaft tracking system of a solar cell panel and a tracking method thereof. The system comprises four silicon cell pieces, an X shaft stepper motor and a Y shaft stepper motor, a photoelectric tracking circuit and a single-chip microcomputer, wherein the four silicon cell pieces are symmetrically arranged at four corners of the solar cell panel, the X shaft stepper motor and the Y shaft stepper motor are used for controlling the solar cell panel to move from east to west and from north to south, the photoelectric tracking circuit is used for receiving the output voltage of the silicon cell pieces and the single-chip microcomputer is used for being respectively connected with the X shaft stepper motor and the Y shaft stepper motor; by aiming at the change of different time segments, weather conditions and solar radiation intensity in the tracking method, for the set of a circuit in the single-chip microcomputer and the set of time in a clock chip can be used, the solar cell can be started at sunrise and returned at sunset and can be coarsely adjusted by tracking the circuit by a sun motion curve; furthermore, the photoelectric tracking circuit can be precisely adjusted by judging an output range of voltage values during a sun-intense switching time scope, therefore, the accurate operation and location of the solar cell panel can be guaranteed, and the photoelectric conversion efficiency can be improved.

Description

technical field [0001] The invention relates to a tracking system, in particular to a dual-axis tracking system of a solar battery panel and a tracking method thereof. Background technique [0002] The tracking control system used in the photovoltaic power generation system uses two tracking control methods. One is light control, which uses light sensors to judge the sun's position according to the difference in light intensity in different areas of the sky, and then drives the motor to rotate the bracket for tracking. The second is time control, according to the local latitude and longitude coordinates and time, using astronomical calculation formulas to calculate the coordinates of the sky where the sun is located, and then drive the motor to rotate the bracket for tracking. [0003] In the prior art, a combination of two control principles is often used, time control as the main and light control as the supplement, that is, when the weather is good, the time control is us...

AI Technical Summary

Problems solved by technology

However, the detection elements and circuits used in the adjustment and control of the tracking system are complex, costly, and insufficient in accuracy

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