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Device for testing solar cell parameter

A technology for testing solar cells and parameters, applied to current testing devices and voltage fields, can solve the problems of bulky volume and high equipment cost, and achieve the effects of simple equipment, low cost, and stable measurement.

Inactive Publication Date: 2009-10-07
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a solar cell parameter testing device, which solves the problems of large volume and high equipment cos

Method used

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  • Device for testing solar cell parameter
  • Device for testing solar cell parameter
  • Device for testing solar cell parameter

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Experimental program
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Embodiment Construction

[0026] like figure 1 As shown, the present invention includes a simulated light source 3, a parameter tester 2 and a test bench 7. The simulated light source is a light box with a built-in xenon lamp, which is located above the test bench. The light box and the test bench desktop are connected by a retractable pull rod 4, and the spectrum of the xenon lamp is close to that of the test bench. Solar spectrum, the light irradiance irradiated by the simulated light source 3 to the test bench tabletop is about 100mW / cm through the extension and contraction of the retractable rod 4 length 2 A copper-plated plate 1 is placed on the table top of the test bench so that the solar cells are placed for testing. The copper-plated plate 1 is equipped with a temperature sensor 5 and a silicon photoelectric cell 6, which are connected to the parameter tester 2 through wires to realize the temperature and irradiance of the test bench. Real-time measurement, the test results are displayed on th...

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Abstract

The invention provides a device for testing solar cell parameter which belongs to the testing device for voltage and current. The device can solve problems of larger volume and high equipment cost in present, and is convenient for testing mass production solar cell in producting line. The device includes a simulation light source, a parameter tester and a testing table, the simulation light source locates on upper part of the testing table, a radiator device locates on down part of the testing table; the parameter tester includes a DSP, an AD conversion module, a DA conversion module, an electronic load module, a display module, a temperature testing module and a light radiation degree testing module. The device uses the DSP as a control center, the equipment is simple and has low cost which can monitor change of temperature and light radiation light in real time, and can test various parameter of the solar cell accurately, rapidly and stably: short circuit current, open circuit voltage, maximum output power, optimizing working current, optimizing working voltage, filling factor, conversion efficiency and I-V curve.

Description

technical field [0001] The invention belongs to voltage and current testing devices, in particular to a solar cell parameter testing device. Background technique [0002] Solar cells are a kind of renewable and clean energy. Solar cell testing is of great significance to control the production process of solar cells, improve production efficiency and ensure production quality. At present, the SGC series solar cell testing equipment developed by Xi'an Jiaotong University includes analog light sources, parameter testers and test benches; most of the parameter testers are based on PCs, and PCs realize data communication through 4-bit high-speed PCI data acquisition cards. High precision and short test time, but the equipment is bulky and costly, so it is not suitable for testing large-scale batches of batteries, and can only conduct sampling tests on solar cells; for testing large-scale solar cells on the production line, most manufacturers just use simple The test device meas...

Claims

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Application Information

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IPC IPC(8): G01R31/26G01K1/02G01K7/20G01J1/44H02S50/10
CPCY02E10/50
Inventor 黎步银鹿才华黄兆祥沈茂盛张平川姜胜林
Owner HUAZHONG UNIV OF SCI & TECH
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