A high-efficiency wavelength-splitting solar energy comprehensive utilization system

A spectroscopic and solar technology, applied in the field of solar energy utilization, can solve problems such as low photovoltaic power generation efficiency, and achieve the effects of improving energy comprehensive utilization efficiency, power generation efficiency, and high-efficiency utilization

Active Publication Date: 2016-03-02
BEIJING TERASOLAR PHOTOTHERMAL TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem of low efficiency of photovoltaic power generation due to the low efficiency of photovoltaic cells in some wavelength bands in utilizing solar spectrum, and to provide a system for more effective utilization of solar spectrum and high-efficiency comprehensive power generation

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  • A high-efficiency wavelength-splitting solar energy comprehensive utilization system
  • A high-efficiency wavelength-splitting solar energy comprehensive utilization system
  • A high-efficiency wavelength-splitting solar energy comprehensive utilization system

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Embodiment Construction

[0027] Specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0028] Figure 1a It is a structural schematic diagram of the first embodiment of the high-efficiency wavelength-splitting solar energy comprehensive utilization system of the present invention; Figure 1a As shown, the comprehensive utilization system includes a wavelength splitting device 11, a small angle single concentrating device 12 placed at the front stage in the optical path of the wavelength splitting device 11, and a composite receiving device 13 composed of two or more receivers at the latter stage . The small angle single concentrating device 12 is incident on each wavelength spectroscopic device and the converging angle of the light is less than or equal to 90°. In the description, the relative positional relationship of the main components is defined by the incident direction of the light path, and the incident light of the sun lig...

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Abstract

A wavelength-splitting-type solar energy comprehensive utilization system, comprising a wavelength splitting device (11), a single condensing device (12) disposed at the front stage of a light path, and a combined receiving device (13) which is located at the rear stage of the light path and consists of a photothermal receiver and a photovoltaic receiver. The included convergence angle of the light rays of the single condensing device incident to each wavelength splitting device is less than or equal to 90 degrees. According to the response characteristics of different receivers to different spectra, the solar energy comprehensive utilization system performs photovoltaic power generation using the radiation of part of the frequency band of solar light to which a photovoltaic cell responds with high efficiency, and performs photothermal power generation using the radiation of the remaining frequency band, thus realizing high-efficiency comprehensive utilization of the solar energy in a full-frequency band range. In addition, the temperature rise of a photovoltaic receiver can also be avoided.

Description

technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a wavelength-splitting high-efficiency solar energy comprehensive utilization system. Background technique [0002] The current utilization of solar energy, one is photoelectric conversion, which converts solar radiant light into electrical energy through solar cells; the other is photothermal conversion, that is, using solar energy collection devices to convert solar radiation energy into thermal energy, such as solar thermal power generation and solar water heaters. However, photoelectric and photothermal systems are mostly independent. [0003] At present, photovoltaic cells mainly include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium antimonide, gallium arsenide, etc. Each photovoltaic cell has a different spectral response curve to sunlight, and the peak value of the quantum efficiency spectral curve of different photovoltaic c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S40/22H02S40/44G02B19/00
CPCF24S23/00H01L31/0549Y02E10/44Y02E10/52
Inventor 刘阳
Owner BEIJING TERASOLAR PHOTOTHERMAL TECH CO LTD
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