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Photoelectric sensor for position of sun

A photoelectric sensor and sun position technology, applied in the sensor field, can solve the problems of low sensor accuracy and small tracking range, and achieve the effects of convenient use, low cost and simple structure

Inactive Publication Date: 2010-02-17
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a sun position photoelectric sensor to overcome the shortcomings of existing sun position sensors such as low precision and small tracking range

Method used

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  • Photoelectric sensor for position of sun
  • Photoelectric sensor for position of sun

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Embodiment Construction

[0012] The present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

[0013] The sun position photoelectric sensor provided by the invention has a structure such as Figure 1 to Figure 4 As shown: there is an accurate tracking component inside, and a rough tracking component outside; the precise tracking component is composed of a light aperture 2 and a four-quadrant silicon photocell 5, the four-quadrant silicon photocell is placed on the base 6 of the sensor, and the light aperture The optical class hole is located directly above the four-quadrant silicon photocell, and the center of the optical class hole and the origin of the four-quadrant silicon photocell are located on the central axis of the sensor; the rough tracking component is composed of four ordinary silicon photocells 4, which are evenly distributed on the sensor. On the outside of the inclined wall 3 of the sensor.

[0014] The distance between ...

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Abstract

The invention discloses a photoelectric sensor for the position of the sun. The photoelectric sensor is provided with an accurate tracking component at the inside and a coarse tracking component at the outside; the accurate tracking component comprises a light penetration hole piece (2) and a four-quadrant silicon photovoltaic cell (5), the four-quadrant silicon photovoltaic cell is arranged on abase (6) of the sensor, a facula hole of the light penetration hole piece is positioned over the four-quadrant silicon photovoltaic cell, and the center of the facula hole and the original point of the four-quadrant silicon photovoltaic cell are both positioned on the central axis of the sensor; and the coarse tracking component comprises four common silicon photovoltaic cells (4) which are evenlydistributed on the outer side of an inclined wall (3) of the sensor. Compared with the prior art, the invention has the following main advantages: the effective tracking range is expanded, the position of the sun within a range of 330 degrees can be detected, and the tracking accuracy can be within 0.1 degree. Moreover, the invention has simple structure, lower cost and convenient use.

Description

technical field [0001] The invention relates to a sensor, in particular to a high-precision and wide-range sun position photoelectric sensor. Background technique [0002] With the development of solar photovoltaic power generation technology in recent years, especially concentrated photovoltaic power generation technology, high-precision sun position tracking technology is becoming more and more important. As the core component of photoelectric tracking, the photoelectric sensor's achievable accuracy directly affects the tracking accuracy of the tracking system, and its tracking accuracy is one of the factors that directly affect the power generation efficiency of the solar photovoltaic power generation system. However, the general sensor often ignores the tracking range factor when ensuring high precision, resulting in the sensor often failing to search for the sun due to the small tracking range. Although some improved technologies have improved the tracking range of the...

Claims

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Application Information

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IPC IPC(8): G01C1/00
Inventor 李鹏杨培环翟鹏程张清杰
Owner WUHAN UNIV OF TECH
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