Full-automatic high precision sun tracking apparatus and method based on PSD

Abstract

The invention discloses a full automatic high precision solar tracking device based on a PSD, which comprises a solar position sensor based on the PSD, a calendar chip DS1302, a signal acquiring and processing circuit, a single chip microcomputer control system, a tracking mechanism and a tracking calibration upright. The solar position sensor based on the PSD comprises a sensor pedestal (1), a cover (6) provided with holes for sunlight incoming, a shading bucket (5), a PSD (4), a PSD pedestal (3), an automatic light-intensity regulation device being capable of automatically regulating the intensity of light which shines on the PSD, and a hemispherical optical circuit protective cover (2) for keeping out of dust and rain; the cover (6) is arranged on the shading bucket (5) through four bolts and the diameter of four mounting holes for the four bolts is more than that of the bolts; the PSD (4) is positioned on the PSD pedestal (3) which is connected with the shading bucket (5) through the threads in the shading bucket. The precision of the solar tracking device is improved through the structure design and simultaneously, the cost is relatively low.

Description

technical field [0001] The invention relates to the field of solar energy. More precisely, the invention relates to a PSD-based fully automatic high-precision sun tracking device and a tracking method thereof, which can be used for efficient collection and utilization of solar energy. Background technique [0002] Solar energy is inexhaustible, although it only reaches the surface of the earth with one billionth of its energy, it is more than the energy stored in the earth's energy. Since the sunlight radiated to the ground is affected by natural conditions such as climate and latitude, the current utilization efficiency of solar energy is not high. To obtain higher power per unit area, it is necessary to use the technology of tracking and aligning with the sun. At present, there are many sun trackers at home and abroad with high precision, but they are often not generally accepted in terms of price, especially for sun sensors used on micro-satellites. Although these product...

AI Technical Summary

Problems solved by technology

Since the sunlight radiated to the ground is affected by natural conditions such as climate and latitude, the current utilization efficiency of solar energy is not high. To obtain higher power per unit area, it is necessary to use the technology of tracking and aligning with the sun.

At present, there are many sun trackers at home and abroad with high precision, but they are often not generally accepted in terms of price, especially the sun sensors used on micro-satellites. Although these products can meet the requirements in terms of precision, the price It is extremely high, and it is difficult to promote it on a large scale in the market

In addition, some four-quadrant detectors or solar cells can also meet the requirements of some occasions to a certain extent, but the accuracy is not high.

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