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Photovoltaic and photo-thermal combined system for full-spectrum solar energy frequency-division, regulation and control

A full-spectrum, solar energy technology, applied in the field of solar energy utilization, can solve the problems of failure to improve the energy conversion efficiency of solar photovoltaic photothermal system, and the function of light and heat cannot be fully utilized and exerted, so as to achieve the optimization of solar energy The effect of conversion efficiency, guaranteed energy conversion efficiency, and large cost advantage

Active Publication Date: 2015-09-09
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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Problems solved by technology

However, the device of this invention focuses on improving the photoelectric conversion efficiency, and the photothermal device is only an auxiliary device, and its photothermal function has not been fully utilized and exerted, thus failing to improve the overall energy conversion of the solar photovoltaic photothermal system. efficiency

Method used

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  • Photovoltaic and photo-thermal combined system for full-spectrum solar energy frequency-division, regulation and control
  • Photovoltaic and photo-thermal combined system for full-spectrum solar energy frequency-division, regulation and control
  • Photovoltaic and photo-thermal combined system for full-spectrum solar energy frequency-division, regulation and control

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] Combine below Figure 1-Figure 5 , A detailed description of the photovoltaic and photothermal combined system with full-spectrum frequency division control of solar energy provided by the present invention:

[0033] See figure 1 with figure 2 , Is a structural schematic diagram and a cross-sectional view of a photovoltaic and photothermal combined system with full-spectrum frequency division control of solar energy provided by an e...

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Abstract

The invention discloses a photovoltaic and photo-thermal combined system for full-spectrum solar energy frequency-division, regulation and control. The photovoltaic and photo-thermal combined system comprises an optical-focusing apparatus, a photovoltaic battery assembly and a frequency-division and heat-collecting apparatus, wherein the frequency-division and heat-collecting apparatus is arranged above the optical focus of the optical-focusing apparatus, the photovoltaic battery assembly is positioned on the optical-focusing apparatus and right below the frequency-division and heat-collecting apparatus, and the frequency-division and heat-collecting apparatus comprises a frequency division apparatus and a heat-collecting tube. Incident sunlight on the optical-focusing apparatus is reflected to and focused on the frequency-division and heat-collecting apparatus, the frequency division apparatus decomposes the sunlight into near infrared and ultraviolet light and visible light through frequency and division. The near infrared and ultraviolet light is directly transmitted to and absorbed by the heat-collecting tube from the frequency division apparatus, and converted into heat energy. The frequency division apparatus reflects the visible light to the photovoltaic battery assembly, which converts the visible light into electric energy. The photovoltaic and photo-thermal combined system makes full use of the full spectrum energy of sun light, and the energy conversion efficiency of the entire system is improved.

Description

Technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a photovoltaic and photothermal combined system controlled by the full-spectrum frequency division of solar energy. Background technique [0002] According to the forecast of the International Energy Agency IEA, by 2050, solar power will account for 30% of the global power supply, while the current share is less than 5%. The solar power industry has a huge market. Faced with the huge gap in global energy, especially clean energy demand, there has never been a "surplus" in the solar power industry, just because there is no technology with low enough cost and high energy conversion efficiency. [0003] The current theoretical limit of the conversion efficiency of single-junction solar cells is about 30% in the full spectrum of sunlight. Therefore, more than 50% of the energy in the solar spectrum cannot be effectively utilized. The comprehensive utilization of photovolta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S40/44H02S40/22H02S40/20
CPCF24S10/40F24S10/70F24S23/00F24S30/422H01L31/0547H02S20/00H02S40/00Y02E10/44Y02E10/47Y02E10/52
Inventor 何祝兵王恺苏奇聪徐保民
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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