Solar energy double-frequency-division light energy cascade power generation device and system

Abstract

The invention discloses a solar energy double-frequency-division light energy cascade power generation device and system. The device mainly comprises a first-stage photovoltaic module, a second-stage photovoltaic module and a third-stage residual light convergence and re-radiation power generation module. According to the device, based on the idea of solar full-spectrum frequency division utilization, short-wave energy in solar spectrum is utilized through a first-stage photovoltaic module, and unavailable radiation is reflected; the second-stage photovoltaic module receives the first-stage reflected radiation and performs primary light condensation, generates power by using medium-near infrared band radiation and reflects residual light which cannot be utilized; and the third-stage residual light convergence and re-radiation power generation module receives the residual light and further condenses the residual light, and spectrum adjustment and re-power generation are carried out through an absorption radiation assembly. The whole system is formed by arranging a plurality of devices in a large-scale array mode, gaps in the array are fully utilized while solar full-spectrum efficient power generation is achieved, and the land utilization rate and the photovoltaic power generation capacity of the unit land area are improved.

Description

technical field [0001] The invention belongs to the technical field of new energy utilization, and in particular relates to a solar double-frequency division light energy cascade power generation device and system. Background technique [0002] The environmental pollution caused by traditional fossil energy is becoming more and more severe, and the potential energy shortage crisis of fossil fuels has brought great pressure to human society. where CO 2 The problem of climate change caused by greenhouse gas emissions has led governments of all countries to increase their efforts to reduce carbon emissions. As a green and renewable energy source, solar energy is rich in resources and non-polluting; solar power generation can achieve zero carbon emissions, which can perfectly solve the current energy pollution problem and potential energy crisis. [0003] Photovoltaic technology represented by silicon cells can realize direct solar power generation. But on the one hand, silic...

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Problems solved by technology

But because this part of the gap cannot directly participate in photovoltaic power generation, in large-scale photovoltaic practice, this inevitably leads to inefficient use of land area

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