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Earth axis type solar condense photovoltaic generating set

A technology of solar concentration and photovoltaic power generation, applied in the field of optoelectronics, can solve the problems of high manufacturing and operating costs, complex mechanical structure, etc., achieve the requirements of reducing tracking accuracy, simple mechanical structure and control system, and improve the effect of concentrating performance

Inactive Publication Date: 2009-05-27
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

The disadvantages of dual-axis tracking are: a complex control system is required to control the pitch and azimuth angles of the condenser, and the mechanical structure is also relatively complicated, so the manufacturing and operating costs are high

Method used

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  • Earth axis type solar condense photovoltaic generating set
  • Earth axis type solar condense photovoltaic generating set
  • Earth axis type solar condense photovoltaic generating set

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings, and specific implementation methods will be described in detail.

[0031] 1. Processing plan

[0032] In order to improve the light concentrating performance, the reflective concentrator 6 of the solar concentrating photovoltaic power generation unit 1 adopts a tire surface, which is a special cylindrical surface, and its manufacturing method is similar to that of a rotating paraboloid. Firstly, the convex mold is made according to the surface formula of the designed tire surface, and then the reflective condenser is made by using the convex mold. The caliber of the reflective condenser mirror is 10-20cm, and the material of the condenser mirror is made of corrosion-resistant plastic, which can realize mass production. The caliber of the non-imaging concentrator 7 is 10-20 mm, the size of the concentrating solar cell 32 is 1-2 mm, and the non-imaging concentrator and th...

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Abstract

The invention belongs to the technical field of photoelectricity and relates to an earth axis type solar concentrating photovoltaic generating device. The device consists of a series of solar concentrating photovoltaic generating units with the same structure; and each unit is arranged on a bracket. The solar concentrating photovoltaic generating unit consists of a reflecting optical collector, a single-axis tracking device, a non-imaging optical collector and an optical collecting solar cell which are connected into a whole through a single axis. The optical collecting system of the solar concentrating photovoltaic generating unit is a fixed focus-type point focusing system and has high light collecting ratio. The surface shape of the reflecting optical collector adopts a curved surface of a tire, can correct astigmatism and improve light collecting performance. In a single-axis tracking mode, a rotating axis of is parallel to the earth axis; and a mechanical structure of the tracking device and a control system are simple. The solar concentrating photovoltaic generating unit can realize batch production and effectively reduce cost for solar power generation.

Description

technical field [0001] The invention belongs to the field of photoelectric technology, and relates to solar photovoltaic power generation technology, in particular to a ground-axis type solar concentrated photovoltaic power generation device. Background technique [0002] Traditional solar photovoltaic power generation devices are composed of monocrystalline silicon or polycrystalline silicon flat cells. The cell arrays are placed facing the sun without concentrating and tracking the sun. The photoelectric conversion efficiency of this type of cells is relatively low, about 10%. Concentrating solar photovoltaic power generation technology uses concentrating elements to concentrate sunlight onto concentrating solar cells, and the concentrating elements need to track the sun. The use of solar concentrated photovoltaic power generation technology can greatly improve the photoelectric conversion efficiency of solar cells. At present, foreign countries have produced concentratin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N6/00G02B3/00G02B5/10G05D3/00H02S20/32H02S40/22
CPCY02E10/52
Inventor 魏秀东卢振武
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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