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IV (current-voltage) characteristic simulation test method of solar cell or module

A solar cell and simulation test technology, which is applied in the field of IV characteristic simulation test of solar cells or components, can solve problems such as the complexity of solar cell characteristic simulation, and achieve the effect of simple and fast test and complex solution

Active Publication Date: 2011-09-14
SUN YAT SEN UNIV +1
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, in order to solve the complexity of solar cell characteristic simulation, the present invention provides a kind of IV characteristic simulation test method of solar cell or module

Method used

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  • IV (current-voltage) characteristic simulation test method of solar cell or module
  • IV (current-voltage) characteristic simulation test method of solar cell or module
  • IV (current-voltage) characteristic simulation test method of solar cell or module

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Experimental program
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Embodiment Construction

[0028] Such as Figure 1~4 Shown, a kind of IV characteristic simulation test method of solar cell or assembly has the following steps:

[0029] (1) Optical simulation: (a) Perform light tracing simulation to calculate the rate of photogenerated carriers according to the silicon wafer thickness, pyramid coverage, anti-reflection coating material, and surface scattering coefficient of solar cells or components, (b) obtain the simulated reflection of the sample (c) compare the simulated reflectance curve of the sample with the measured reflectance curve of the sample, and judge whether it is consistent with the measured reflectance curve; (d) if the simulated reflectance curve is consistent with the measured reflectance curve, track the light The calculated photogenerated carrier velocity is used as the input parameter of the semiconductor device simulation. If the simulated reflectance curve does not match the measured reflectance curve, re-calculate the photogenerated carrier...

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Abstract

The invention relates to an IV (current-voltage) characteristic simulation test method of a solar cell or solar cell module, which comprises the steps of: 1, optical simulation: figuring out a photon-generated carrier rate; 2, semiconductor element simulation: constructing microunits of the solar cell or solar cell module to obtain J-V characteristic of the microunits; and 3, circuit simulation: serially connecting a plurality of voltage control current sources G to form a simulation circuit of the whole solar cell or module by a resistor Rf and a resistor Rb by using the microunits as the voltage control current sources G, carrying out voltage scanning between a main grid test point and a back electrode of the simulation circuit and tracting for recording a current to obtain the I-V characteristic of the whole solar cell or solar cell module. According to the invention, the complexity of the IV characteristic simulation of the solar cell or solar cell module is effectively solved, and the IV characteristic of the solar cell or solar cell module is tested simply and rapidly.

Description

technical field [0001] The invention relates to secondary development of semiconductor devices and circuit simulation software, in particular to an IV characteristic simulation test method of solar cells or components. Background technique [0002] The multidimensional numerical simulation of solar cells is a complex system, which needs to consider the properties of optics, semiconductors and circuits. At present, the commonly used multi-dimensional semiconductor device simulation software (Dessis) and circuit simulation software (Spice) are more complicated to use, mainly in the form of program codes, which are cumbersome to operate and require professional programmers, which limits them to a certain extent. The application and promotion of solar cell simulation technology. Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, in order to solve the complexity of solar cell charact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/26H02S50/10
CPCY02E10/50
Inventor 沈辉杨阳
Owner SUN YAT SEN UNIV
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