Double-sided solar-cell-module double-sided light receiving device

Abstract

The invention discloses a double-sided solar-cell-module double-sided light receiving device. The device comprises a solar simulator, a double-sided solar cell module, an optical filtering net and a reflecting surface. The reflecting surface comprises two mirrors. The optical filtering net is arranged on one side of the double-sided solar cell module. The solar simulator is arranged in front of the double-sided solar cell module and the optical filtering net. The reflecting surface is arranged behind the double-sided solar cell module and the optical filtering net. Mirror surfaces of the two mirrors are opposite to each other. The two mirrors are arranged so as to form 90 degree. An included angle of the mirrors and the double-sided solar cell module is 45 degree. In the invention, measurement light of the solar simulator is reflected to a back side of the double-sided solar cell module to be measured so as to realize a double-sided light receiving measurement effect. The structure is designed reasonably and a reflection effect is stable. Measurement light of a right side and the back side of the double-sided solar cell module to be measured is generated by a same light source. A spectrum matching degree is high. The device can be used as an additional apparatus of a single light source solar simulator and a solar simulator structure does not need to be reconstructed.

Description

technical field [0001] The invention belongs to the field of testing devices for solar battery components, and in particular relates to a double-sided light-receiving device for a double-sided solar battery component. Background technique [0002] A solar simulator is a device that simulates outdoor solar radiation indoors. It generally includes light sources, filters, power supply and control circuits. The solar simulator uses artificial light sources to simulate solar radiation to overcome the impact of solar radiation on time and weather. Influenced by factors such as location and location, it is widely used in testing the electrical performance of solar cell components. The solar simulator collects the volt-ampere characteristic curve of the solar cell component to be tested to calculate the relevant electrical performance parameters of the solar cell component as a production process research. and basis for sales pricing. [0003] The existing double-sided solar cell m...

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Problems solved by technology

[0003] The existing double-sided solar cell module receives direct sunlight on the front side, and the ground reflected light and atmospheric scattered light on the back side. Therefore, compared with the conventional single-sided solar cell module, the double-sided solar cell module has high annual power generation and low irradiance. It has the advantages of good power generation performance, low power generation cost, and small footprint. At present, the single light source solar simulator can only control the front light intensity of the solar cell module to be tested, and cannot provide light intensity for the back side of the solar cell module, so it can only provide the front side. The measurement effect of light received. When the front side of the double-sided solar cell module receives light, the back side does not receive light or the light intensity on the back side cannot be stably modulated, the solar simulator cannot accurately and effectively measure the volt-ampere characteristic curve of the double-sided solar cell module. To obtain accurate electrical performance parameters of double-sided solar cell modules, two solar simulators are used to provide light sources for the front and back sides respectively in actual work, and the two solar simulators are placed opposite to each other. The measurement light between the devices and perpendicular to the front and back will greatly increase the manufacturing cost and the difficulty of debugging and maintenance; and the light intensity is generated by two different light sources, and the matching degree of the measurement spectrum cannot be guaranteed to be consistent

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