Method and system for tracing solar angles of solar lighting boards

Abstract

The invention relates to a method and system for tracing solar angles of solar lighting boards. The method comprises the following steps of: (1) arranging a plurality of solar lighting boards in an array; (2) installing a solar angle detector on a main board, wherein one lighting board in the array is selected as the main board, and the rest ones are taken as slave boards; (3) controlling the elevation and the azimuth of the main board in a manner that a hydraulic pump drives an ejector rod of a hydraulic oil cylinder; (4) converting the elevation and the azimuth of the main board to two voltage signals with different frequencies by an angle sensor of the main board, and transmitting the voltage signals to control circuits of the slave boards in a time division manner; and (5) performing rectification by the control circuit of each slave board according to the voltage signals with the different frequencies received in a time division manner, and adjusting the gestures of the slave boards in a manner that the hydraulic pump drives the ejector rod of the hydraulic oil cylinder so as to ensure that the slave boards and the main board are same in elevation and azimuth. The system is simple in structure and low in cost and energy consumption, has a good tracing effect, is beneficial to the great improvement on a utilization rate of solar energy, and is energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to a solar angle tracking method and system for a solar daylighting panel. Background technique [0002] With the depletion of coal, oil, natural gas, uranium and other conventional energy supplies and the increasing pressure on environmental protection, the energy supply is turning to the use of solar cells, which is a clean energy that can directly convert light energy into electrical energy. Although the energy irradiated by the sun to the earth is huge, the energy of the sun is not high and unstable in a small area at a certain time, which limits the application of solar cells as a clean energy source. Therefore, it is very meaningful to further improve the efficiency of solar cells and achieve the purpose of wide application. A very intuitive and simple method is to design an efficient solar cell tracking system to track the changing angle of the sun, and its operation and maintenance costs are low, but the existing solar ce...

AI Technical Summary

Problems solved by technology

For the dual-axis automatic tracking system, three types of automatic tracking technologies are currently used in the market: vertical axis rotary tracker, ring gear rotary tracker and gyro tracker. They are all driven by dual motors. When the attitude of the lighting surface is fixed , the motor needs to maintain the torque, and the motor is still in the state of energy consumption

In addition, because the motor and mechanical parts need maintenance, sand and dust prevention, and motor wear and other issues, many solar cell daylighting panels are installed in a fixed frame without sun angle tracking

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