Sunlight fixed-direction reflection control system based on earth rotation axis

Abstract

The invention discloses a sunlight fixed-direction reflection control system based on an earth rotation axis. The sunlight fixed-direction reflection control system based on the earth rotation axis comprises a controller. An input end of the controller is connected with signal conditioning circuits. Input ends of the signal conditioning circuits are connected with a sun position sensor. An output end of the controller is connected with an elevating angle adjusting servo motor and an azimuthal angle adjusting servo motor. The elevating angle adjusting servo motor and the azimuthal angle adjusting servo motor are used for driving a mirror surface axis to rotate and then adjusting an elevating angle and an azimuthal angle of a reflection mirror surface installed on the mirror surface axis. The sun position sensor comprises a tower wall, a lens cone mounted on the tower wall, a plurality of photo-resistors mounted in the lense cone, and a photocell which is mounted on the tower wall and is used for providing power for the plurality of photo-resistors. Output ends of the plurality of photo-resistors are connected with the controller. The signal conditioning circuits comprise an amplifying circuit, a filter circuit, and an analogy-to-digital (A / D) conversion circuit. The sunlight fixed-direction reflection control system based on the earth rotation axis is compact in structure, reasonable in design, low in realization cost, convenient and fast to use and operate, high in the sun position tracking precision, and good in practical popularization value.

Description

technical field [0001] The invention relates to the technical field of development and utilization of solar energy, in particular to a solar light directional reflection control system based on the earth's rotation axis. Background technique [0002] With the continuous development of society, the demand for energy from all walks of life is also greatly increasing. However, the energy content of the earth itself is limited, which makes human beings have to face the problem of energy shortage. In recent years, the use of sunlight as an energy provider has become the focus of attention, and energy conversion methods such as photovoltaic power generation and photothermal power generation have emerged one after another. Traditional photothermal power generation systems mostly use dual-axis automatic tracking. Although this method can achieve the function of directional reflection, due to the influence of the external environment and the system's own errors, it often fails to ach...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a solar directional reflection control system based on the earth's rotation axis, which has a compact structure, reasonable design, low cost of implementation, convenient use and operation, and accurate control of the sun's position. The tracking accuracy is high and the practicability is strong. It solves the problems of low tracking accuracy, complicated control process and low anti-interference ability of the traditional dual-axis automatic tracking system. It has good application effect and has good practical promotion value.

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