Simulating light source device and simulating method for solar battery attenuation test

A technology of solar cells and simulated light sources, applied in measuring devices, measuring electricity, measuring electrical variables, etc., can solve problems such as output power false reporting, delamination, poor welding, etc., achieve good repeatability, high reliability, and constant temperature Attenuation effect

Active Publication Date: 2014-11-26
JIYANG EQUIP HAIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (1) The quality of the silicon wafer is poor, resulting in a relatively large initial light-induced attenuation of the battery;
[0009] (2) The module manufacturing process is unreasonable, and there are quality problems such as cell cracks, poor EVA cross-linking degree, delamination, and poor welding;
[0010] (3) Some component manufacturers have inaccurate power tests or intentionally falsely report output power
[0017] 2. Although light attenuation was previously a method for solar cell attenuation testing to simulate light source devices, before the quality of silicon wafers has not been effectively improved, using this method is an effective measure to solve the problem of initial light-induced attenuation of photovoltaic modules

Method used

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  • Simulating light source device and simulating method for solar battery attenuation test
  • Simulating light source device and simulating method for solar battery attenuation test
  • Simulating light source device and simulating method for solar battery attenuation test

Examples

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Embodiment 1

[0045] Example 1: As shown in the figure,

[0046] A solar cell attenuation test simulation light source device, including a light box, a simulated sun lamp, a temperature sensor, a radiometer, a refrigeration compressor, a cooling pipe and an electric control panel, and the simulated sun lamp, a temperature sensor, a radiometer and The cooling pipe is equipped with a refrigeration compressor outside the light box, the refrigeration compressor is controlled by a temperature sensor, the simulated sun lamp is controlled by a radiometer, and the light intensity of the simulated sun lamp is 0.5-2.0kW / m2.

[0047] A solar cell attenuation test simulation light source device, including a frame 1, a fixed plate 2, a transmission shaft seat 3, an upper end cover 4, a transmission shaft 5, a connection mounting seat 6, a locking washer 7, a rotating disk 8, and a coupling 9. Motor mount 10, single row radial thrust ball bearing 11, spacer 12, motor 13, lock nut 14, tempered glass cover...

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PUM

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Abstract

The invention discloses a simulating light source device and a simulating method for a solar battery attenuation test. The simulating light source device comprises a lamp box, a simulating solar lamp, a temperature sensor, an irradiatometer, a refrigeration compressor, a cooling pipe and an electric control panel, wherein the simulating solar lamp, the temperature sensor, the irradiatometer and the cooling pipe are arranged in the lamp box; a refrigeration water circulation cooling device is arranged outside the lamp box; the refrigeration water circulation cooling device is controlled by the temperature sensor; and the simulating solar lamp is controlled by the irradiatometer, and the illumination intensity of the simulating solar lamp is 0.5-2.0kW / m<2>.

Description

technical field [0001] The invention relates to a device and method for simulating a light source for attenuation testing of solar cells, belonging to the technical field of photovoltaics. Background technique [0002] Illumination will cause the performance of the battery to attenuate continuously, and finally reach the saturation value: light or current injection causes boron and oxygen in the silicon wafer to form a boron-oxygen complex, thereby reducing the minority carrier lifetime and causing a decrease in the battery conversion rate. However, after annealing, the minority carrier lifetime It can be recovered again, and its possible reaction is Bs+2Oi→BsO2i BsO2i→Bs+2Oi; [0003] The attenuation of the output power of photovoltaic modules can be divided into two stages when the previous light attenuation is performed on the cells: [0004] The first stage can be called the initial light-induced attenuation. In the first stage, the output power of photovoltaic modules ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/36
Inventor 孙良欣夏文斌刘小龙
Owner JIYANG EQUIP HAIAN
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