A dense array concentrated solar photovoltaic device

A concentrating solar energy and photovoltaic device technology, which is applied in photovoltaic power generation, electrical components, circuits, etc., can solve the problems of electrode arrangement, long concentrating focal length of photocell chips, and difficulty in heat dissipation of solar cells, so as to shorten the concentrating focal length, The effect of small focus focal length and small focus spot

Active Publication Date: 2011-12-14
REDSOLAR NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a dense array concentrating solar photovoltaic device, which is used to solve the problems of difficult heat dissipation of solar cells, long focal

Method used

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  • A dense array concentrated solar photovoltaic device
  • A dense array concentrated solar photovoltaic device
  • A dense array concentrated solar photovoltaic device

Examples

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Example Embodiment

[0043] Example one

[0044] figure 1 It is a schematic structural diagram of a dense array type concentrating solar photovoltaic device provided by Embodiment 1 of the present invention. The device includes: a Fresnel lens array 1, a planar substrate 2 and at least two photovoltaic cells 3.

[0045] The Fresnel lens array 1 is on the top layer and is an integral lens. The upper surface is flat and the lower surface has at least two groups of identical concentric circular saw teeth. Each group of identical concentric circular rings forms a Fresnel lens. Fresnel lenses form an array. The planar substrate 2 is arranged on the bottom layer. The photocells 3 are arranged on the upper surface of the planar substrate 2 and arranged in the form of a photocell array. The number of photocells 3 in the photocell array is the same as the number of Fresnel lenses in the Fresnel lens array 1, and each photocell corresponds to one Fresnel lens . Specifically, each photocell 3 is located at the...

Example Embodiment

[0058] Example two

[0059] Considering that when the array type concentrating solar photovoltaic device provided in the first embodiment of the present invention is applied in a photovoltaic power generation system that does not use a sun tracking device, if the height of the sun changes, the sunlight incident on the Fresnel lens array will be non-normally incident At this time, after being refracted by each effective Fresnel lens, part of the edge light cannot reach the light receiving area of ​​the photocell corresponding to each Fresnel lens, and the solar energy utilization rate is reduced. In order to solve this problem, on the basis of the first embodiment, the second embodiment of the present invention provides another dense array type concentrating solar photovoltaic device. This type of device is used in any dense array type provided in the first embodiment. The optical solar photovoltaic device adds: at least two compound curved mirrors located between the Fresnel lens...

Example Embodiment

[0065] Example three

[0066] Similar to the second embodiment, in order to further improve the solar energy utilization rate of the array type concentrating solar photovoltaic device provided in the first embodiment, on the basis of the first embodiment, the third embodiment of the present invention provides another dense array type concentrating A solar photovoltaic device, which adds at least two funnel-shaped plano-convex lenses to any dense array concentrating solar photovoltaic device provided in the first embodiment.

[0067] Such as Picture 10 Shown is one of the structural schematic diagrams of the array type concentrating solar photovoltaic device with plano-convex lenses provided in the third embodiment of the present invention. by Picture 10 It can be seen that the device is figure 1 At least two funnel-shaped plano-convex lenses 12 located between the Fresnel lens array 1 and the planar substrate 2 are added to the basis shown. The at least two plano-convex lenses 1...

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Abstract

The invention relates to a dense array concentrating solar energy photovoltaic device, and belongs to the field of photovoltaic. The dense array concentrating solar energy photovoltaic device comprises a Fresnel lens array, a plane substrate and at least two photo cells, wherein the Fresnel lens array is arranged at a top layer and is an integrated lens; the upper surface of the Fresnel lens is a plane and the lower surface of the Fresnel lens is provided with at least two groups of concentric ring-shaped saw teeth; each group of concentric ring-shaped saw teeth forms a Fresnel lens; the Fresnel lenses are arranged in an array mode; the plane substrate is arranged at a bottom layer; the at least two photo cells are arranged on the upper surface of the plane substrate and in a photo cell array mode; the number of the photo cells in the photo cell array is the same as the number of the Fresnel lens in the Fresnel lens array; and each photo cell corresponds to one Fresnel lens. The array concentrating solar energy photovoltaic device is simple in heat dissipation, short in concentrating focus and high in solar energy utilization rate, and does not require electrode arrangement inside a photo cell chip.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to a dense array concentrated solar photovoltaic device. Background technique [0002] Solar energy is one of the most valuable clean energy sources and an important part of the future basic energy. Solar photovoltaic power generation technology directly converts solar energy into electrical energy. [0003] However, the price of solar power generation systems has remained high for a long time, mainly due to the low density of solar energy and the low conversion efficiency of solar cells. In order to reduce the price of solar power generation systems, high-power concentrating solar photovoltaic power generation technology has emerged as the times require. Concentrating photovoltaic power generation technology amplifies the received solar energy by hundreds or thousands of times through transmission or reflection, and then focuses the amplified energy on small photocells with extremely ...

Claims

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Application Information

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IPC IPC(8): H01L31/052H01L31/0232H01L31/054
CPCY02E10/52Y02E10/50
Inventor 王智勇叶征宇卫明王桐
Owner REDSOLAR NEW ENERGY TECH
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