Photovoltaic cell concentration test device

Abstract

The invention discloses a photovoltaic cell concentration test device, which comprises a support, a concentration system, a moving platform, a working table, a cell slice fixing device, and a secondary dodging system, wherein the support is provided with a guide rod extending along a Z axis direction; the concentration system is arranged on the support and comprises a diaphragm with an adjustable aperture and a lens located below the diaphragm; the moving platform slides on the guide rod along the Z axis direction; the working table comprises a first working table and a second working table, the first working table slides on the moving platform along a Y axis direction, the second working table is located on the first working table and can move along an X axis direction in relative to the first working table, and the second working table is provided with a bearing surface for bearing a tested cell slice; and the secondary dodging system is located between the lens and the working table. The diaphragm is arranged between the light source and the concentration lens, uniform and parallel light with a large area can be outputted, and through continuously adjusting the area of the aperture of the diaphragm, total light energy received by the to-be-tested cell slice can be adjusted continuously.

Description

Technical field [0001] This application belongs to the field of photovoltaics, and particularly relates to a photovoltaic cell concentration test device. Background technique [0002] In recent years, as a new type of renewable energy, solar cells have attracted more and more attention, and their status in the energy industry has become more and more important. With the continuous development of solar technology and people's continuous in-depth exploration of high-efficiency solar cells, the concentrating solar cell system composed of multiple PN structures of high-efficiency solar cells and concentrating components is bound to become the mainstream of solar cell applications . [0003] For solar cells with multiple PN junctions, in the actual application process, they often do not work directly under the outdoor sunlight, but converge a large area of ​​sunlight onto a small cell surface through a condenser lens. This allows the solar cell surface unit area to receive a light int...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a photovoltaic cell concentration test device to solve the problems in the prior art that the concentration factor cannot be accurately determined, the concentration factor cannot be continuously adjusted in a wide range, and the local temperature of the diaphragm increases significantly.

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