A wall-attached multi-layer reflector holographic solar concentrator

Abstract

The invention provides a wall-attached multi-layer reflector holographic solar concentrator, in particular comprising a photovoltaic cell (4) and a multi-layer volume holographic reflective layer (1,2, 3); Wherein one side of the multi-layer volume holographic reflective layer (1, 2, 3) is arranged on a corresponding wall; The photovoltaic cell (4) is arranged on the other side of the multi-layervolume holographic reflection layer (1, 2, 3), and is located in a light condensing center region common to each layer volume holographic reflection layer, and is used for receiving sunlight reflected by the multi-layer volume holographic reflection layer (1, 2, 3). The reflective condensing light intensity can be obtained in the condensable range, and the technical requirements of low cost, highreliability and easy popularization are met at the same time.

Description

technical field [0001] The invention relates to the technical field of volume holographic reflection, in particular to a multilayer reflective volume holographic solar concentrator utilizing solar energy. Background technique [0002] Solar energy, as a kind of universal and episodic renewable energy, can mostly be converted and utilized through photothermal conversion and photoelectric conversion. There are various forms of concentrators in the prior art, but because they can concentrate If the angle is small, an additional one-dimensional or two-dimensional solar automatic tracking system is generally required. Although it is not difficult to realize tracking through mature automatic control technology, it is difficult to promote it due to the high failure rate and cost increase brought by the supporting tracking system. In addition, most of the existing multi-layer volume holographic large-angle concentrating systems use transmission volume holography, which still has ma...

AI Technical Summary

Problems solved by technology

[0002] Solar energy, as a kind of universal and episodic renewable energy, can mostly be converted and utilized through photothermal conversion and photoelectric conversion. There are various forms of concentrators in the prior art, but because they can concentrate If the angle is small, an additional one-dimensional or two-dimensional solar automatic tracking system is generally required

Although it is not difficult to realize tracking through mature automatic control technology, it is difficult to promote it due to the high failure rate and cost increase brought by the supporting tracking system

In addition, most of the existing multi-layer volume holographic large-angle concentrating systems use transmission volume holography, which still has many inconveniences in specific occasions that do not require transmitted light

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