Solar energy light following method and system

Abstract

The invention provides a solar energy light following method and system. The solar energy light following method comprises the following steps that (1) communication is carried out through a satellite module and a satellite time service positioning system to obtain position coordinates of a solar panel and the time of the current time zone; (2) position coordinate information and the time of the current time zone are transmitted to a microprocessor, and the elevation angle and the azimuth angle of the sun relative to the solar panel at present are calculated through a solar elevation angle and azimuth angle algorithm after the microprocessor reads data; (3) the microprocessor judges whether the elevation angle is larger than zero degree or not, if the elevation angle is no larger than zero degree, any driving signal is not sent, if the elevation angle is larger than zero degree, the microprocessor updates the elevation angle and the azimuth angle of the sun periodically, sends information of the elevation angle and information of the azimuth angle of the sun to a motor driving circuit to drive a motor so as to enable the solar panel to align to the sun. The solar energy light following method and system are high in accuracy and rapid in reaction, cannot be influenced by natural factors such as the weather, and are applicable to focusing of large-sized solar panels, and high in cost performance.

Description

technical field [0001] The invention relates to the field of electrical control, in particular to a solar light tracking method and system in the technical field of solar control. Background technique [0002] As the second largest energy consuming country in the world, China's rapid economic development has brought great potential and pressure to the development and utilization of new energy. On the other hand, China has a vast territory and has very rich solar energy resources. It is estimated that the solar radiation received by the land surface of China is about 50x1018KJ every year, and the total annual solar radiation across the country reaches 335~837KJ / cm 2 a. If people can make full use of a fraction of them, it will also be a huge energy resource. At the end of 2012, the newly installed photovoltaic capacity in the world reached 31GW, and the cumulative installed capacity reached a record high of 98.5GW. The center of the photovoltaic market is also shifting fr...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a solar light tracking method and system based on the above problems and contradictions, aiming at the low utilization rate and low cost performance of solar energy in the prior art, which has high precision, fast response, and is not affected by natural factors such as weather , suitable for light alignment of large-area solar panels, cost-effective

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