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Efficient solar energy automatic tracking method and device

An automatic tracking, solar energy technology, applied in the direction of using feedback control, can solve the problem of limited solar energy utilization, and achieve the effect of improving efficiency

Active Publication Date: 2014-07-16
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, the current utilization of solar energy is still very limited, and the average ex-factory efficiency of cost-effective polycrystalline silicon cells is around 16%.

Method used

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  • Efficient solar energy automatic tracking method and device
  • Efficient solar energy automatic tracking method and device
  • Efficient solar energy automatic tracking method and device

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Embodiment Construction

[0047] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0048] A high-efficiency solar energy automatic tracking method of the present invention comprises the following steps,

[0049] Step S01: Judging the external weather conditions, if it is sunny, go to step S02, if it is cloudy or the light is insufficient, go to step S03;

[0050] Step S02: Adopt photoelectric detection and tracking mode to realize automatic tracking of solar energy;

[0051] Step S03: Adopt the sun angle tracking mode, that is, calculate the sun altitude and azimuth angle according to the real time, and realize automatic tracking of solar energy according to the calculated sun altitude angle and azimuth angle.

[0052] The present invention also provides a high-efficiency solar energy automatic tracking device, including a photoelectric detection and tracking module connected to a single-chip microcomputer control module...

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Abstract

The invention relates to an efficient solar energy automatic tracking method and device. The method includes the steps that first, the outside weather condition is judged, if it is sunny, a photoelectric detection tracking mode is adopted to achieve solar energy automatic tracking, and if it is cloudy or illumination is not sufficient, a sun angle tracking mode is adopted, and in other words, the solar altitude and the azimuth angle are calculated according to real-time time, and solar energy automatic tracking is achieved according to the calculated solar altitude and the calculated azimuth angle. According to the method and device, a photoelectric detection tracking method is combined with a sun angle tracking method, a solar cell panel can change along with changes of the solar altitude and the azimuth angle, the solar cell panel can be kept perpendicular to solar rays all the time, and therefore the efficiency of solar cells is improved. Not only can the sensitivity of the solar energy tracking device be improved, but also interference of weather and other light sources can not happen to the device easily, and the device is high in stability and small in error.

Description

technical field [0001] The invention relates to the field of photovoltaic applications, in particular to a high-efficiency solar energy automatic tracking method combining comprehensive sun angle tracking and photoelectric detection and tracking, especially a high-efficiency solar energy automatic tracking method and device. Background technique [0002] The sun releases energy into the universe all the time, although only a tiny part of it reaches the earth. Even so, the solar radiation energy received by the earth's surface every minute is still as high as A kilowatt is equivalent to 6 billion tons of standard coal. Since the supply of solar radiation can be said to be continuous, so solar energy can be said to be inexhaustible relatively speaking. The use of solar power to generate electricity will not cause environmental pollution, and the use of clean energy to replace traditional fossil energy is the best choice for maintaining sustainable development. The developm...

Claims

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Application Information

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IPC IPC(8): G05D3/12
Inventor 刘凤杰
Owner STATE GRID CORP OF CHINA
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