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A Method for Optimizing Encapsulation Loss of Photovoltaic Modules

A photovoltaic glass and solar cell module technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve problems such as difference in antireflection rate and difference in spectral response characteristics, and achieve the effect of small packaging loss and reduced packaging loss.

Inactive Publication Date: 2017-03-22
ALTUSVIA ENERGY TAICANG
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Problems solved by technology

However, since the thickness of the anti-reflective coating layer of coated photovoltaic glass has a large difference in anti-reflection rate for different bands of light, different solar cells also have certain differences in spectral response characteristics for different bands of light.

Method used

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  • A Method for Optimizing Encapsulation Loss of Photovoltaic Modules

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, further illustrate the utility model.

[0018] As shown in the accompanying drawings, a method for optimizing the encapsulation loss of solar cell modules described in the utility model, the specific steps of the method are as follows:

[0019] (a): Make photovoltaic glass with different anti-reflection coating thicknesses, take 10-50nm as the thickness tolerance of the coating layer, and test the optical transmittance Tran(λ) under each thickness anti-reflection coating scheme through the transmittance testing equipment ), and establish a relationship scale between the thickness of the anti-reflection film and the transmittance;

[0020] (b): Measure the quantum efficiency of the tested solar cell by the photovoltaic cell quantum efficiency testing equipment, and obtain the spectral response distribution SR(λ) of the tested solar cell according to the fixed proportional relationship between the spectral response and the e...

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Abstract

The invention discloses a method for minimizing package loss of a photovoltaic module, and discloses a method for minimizing package loss of a solar cell module. The method comprises the following specific steps: (1) fabricating photovoltaic glass with different antireflection film thicknesses, and building a relationship scale of the antireflection film thickness and the transmittance; (2) measuring the quantum efficiency of a tested solar cell through a photocell quantum efficiency testing equipment to obtain spectral response distribution of the tested solar cell; (3) calculating the light utilization rate of the solar cell in the spectral condition in a traversable manner according to the spectral response distribution of the tested solar cell and the transmittances of thick coated glass with various antireflection film thicknesses; and (4) comparing the light utilization rates under the condition of different antireflection film thicknesses to obtain a theoretic optimization value of the package loss caused by an optical loss. According to the method, the light utilization rate difference between the different antireflection film thicknesses is fitted out, so that the antireflection film thickness scheme with the minimum package loss caused by the optical loss is obtained.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to a method for optimizing the encapsulation loss of a solar battery module. Background technique [0002] A solar cell, also known as a photovoltaic cell, is a semiconductor device that converts solar light energy directly into electrical energy. Because it is a green environmental protection product, it will not cause environmental pollution, and it is a renewable resource. Therefore, in today's energy shortage situation, solar cells are a new type of energy with broad development prospects. [0003] In the photovoltaic industry, in order to obtain the current, voltage and output power required by photovoltaic power generation units, and to protect the batteries from mechanical damage and environmental damage, several single-chip batteries must be connected in series and parallel and packaged into photovoltaic modules. In general, the output power (actual power) of the encapsulated p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/048H01L31/18
CPCH01L31/048H01L31/18Y02B10/10Y02E10/50Y02P70/50
Inventor 丁常林汤云鹤黄兴王殿磊张斌
Owner ALTUSVIA ENERGY TAICANG
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