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Sun tracking method and device for photovoltaic power generation equipment

A technology for photovoltaic power generation equipment and sun tracking, applied in the field of solar energy, can solve the problems of difficult installation, affecting tracking accuracy, and rising cost of tracking system, so as to improve the utilization rate and promote development.

Inactive Publication Date: 2016-03-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0004] However, the differential tracking mechanism requires high installation accuracy of the system, making installation difficult. Therefore, some products even have a GPS positioning system to assist installation, resulting in a substantial increase in the cost of the tracking system
In addition, it is difficult to adjust this type of tracking system in subsequent operations
Moreover, the inconsistency of the aging degree of the sensor device will also affect the tracking accuracy

Method used

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  • Sun tracking method and device for photovoltaic power generation equipment
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  • Sun tracking method and device for photovoltaic power generation equipment

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Embodiment Construction

[0033] Below in conjunction with accompanying drawing, describe technical scheme of the present invention in detail:

[0034] The present invention uses the combination of image processing and apparent solar trajectory to track. First, according to the solar trajectory equation, calculate the current time and the altitude and azimuth of the current geographic location, and drive the stepping motor to rotate to initialize the system. Make the sun spot image fall within the range that the CCD image sensor can collect.

[0035] Such as figure 1 As shown, the sun tracking device for photovoltaic power generation equipment of the present invention includes an image acquisition device 1, a processor 2, a tracking module 3 and a solar cell assembly 4, and the image acquisition device 1 is arranged on the solar cell assembly 4, so The processor 2 is connected with the image acquisition device 1 and the tracking module 3 respectively, and the solar cell assembly 4 is connected with th...

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Abstract

The invention relates to the technical field of solar energy, in particular to a sun tracking method and device for photovoltaic power generation equipment based on video stream processing. In the sun tracking method of the present invention, the main steps are: collect the sunlight image information in real time through the image acquisition device 1, and send the collected image information to the processor 2; the processor 2 obtains the real-time position coordinates of the sun according to the received image information , and judge whether tracking control is needed according to the real-time position coordinates of the sun, the processor controls the tracking module 3 to rotate, and drives the solar cell assembly 4, so that the solar cell panel in the solar cell assembly 4 is perpendicular to the sun's rays. The beneficial effect of the invention is that the sun can be accurately tracked in real time, the utilization rate of the sun by the solar device is effectively improved, and the development of the solar device is promoted. The invention is especially suitable for photovoltaic power generation equipment.

Description

technical field [0001] The invention relates to the technical field of solar energy, in particular to a sun tracking method and device for photovoltaic power generation equipment based on video stream processing. Background technique [0002] At present, the solar panels installed in most solar power generation systems adopt fixed installation positions and angles. However, due to the continuous change of sunlight direction and intensity over time, this makes the sunlight resources not fully utilized. Therefore, in order to improve the energy conversion efficiency of the solar power generation system, it is necessary to use sun tracking technology. Especially in concentrated solar power generation systems, it is very important to realize high-precision real-time tracking of the sun. [0003] The current mainstream sun tracker, its tracking mechanism is to use a straight baffle with photosensitive devices installed on both sides, and use the difference between the output val...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S20/32
CPCY02E10/50
Inventor 张博刘帅谢文旭向勇杨开宁代小林
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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