Photovoltaic system tracking and backtracking method

A photovoltaic system and tracker technology, applied in the direction of control using feedback, can solve the problems of shadow shading between arrays, system power loss, etc., and achieve the effects of high utilization rate, convenient operation and simple structure

Active Publication Date: 2016-01-13
ARCTECH SOLAR HLDG CO LTD
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AI Technical Summary

Problems solved by technology

If the spacing between photovoltaic arrays is designed according to 6 hours, shadows will appear between the arrays very early, resulting in power loss of the system

Method used

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  • Photovoltaic system tracking and backtracking method
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  • Photovoltaic system tracking and backtracking method

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Embodiment Construction

[0063] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0064] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also can mean "more than one". Second...

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Abstract

The invention provides a photovoltaic system tracking and backtracking method which comprises the following steps: a) fixedly arranging at least two photovoltaic assemblies; b) obtaining local time and latitude of a direct solar ray point, and obtaining the solar altitude angle; c) obtaining inclined plane length of each photovoltaic assembly, distance between the geometric center of the photovoltaic assembly and the horizontal plane and inclination angle, and obtaining an inclination distance of the photovoltaic assembly extending from the inclined plane top end to the horizontal plane along the bottom end direction; d) obtaining a virtual distance between an image point and a contact point of the inclination distance and the horizontal plane according to the solar altitude angle, the inclination angle and the inclination distance; e) comparing the distance between the geometric centers of the two adjacent photovoltaic assemblies and the virtual distance; and f) carrying out judgment according to the comparison data, and controlling the position relation between the photovoltaic assemblies and the solar rays through a tracker. Through the method, the solar altitude angle can be monitored, and the inclination angle of the photovoltaic assemblies is adjusted, thereby effectively preventing the adjacent photovoltaic assemblies from generating shadow in between, improving generating capacity and enlarging application range.

Description

technical field [0001] The invention relates to the application field of photovoltaic cells, in particular to a method for photovoltaic tracking and inverse tracking. Background technique [0002] With the development of society and science and technology, the production technology of solar photovoltaic cells has been continuously improved, and has been widely used in various fields. Solar photovoltaic cells (referred to as photovoltaic cells) are devices that directly convert light energy into electrical energy through the photoelectric effect or photochemical effect. [0003] The electric energy generated by the battery mainly depends on the photon energy incident on the battery, but the current photovoltaic power generation products still have the problem of low power generation efficiency. The reason is that the current photovoltaic cells are generally planar, and the use of reflected light rare. [0004] If the array spacing is increased, although more power generatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D3/12
Inventor 王士涛蔡浩李彩霞
Owner ARCTECH SOLAR HLDG CO LTD
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