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Method of calculating array back radiation quantity of double-sided component

A technology of array arrangement and radiation quantity, applied in the directions of calculation, design optimization/simulation, special data processing application, etc., can solve the problem that the power generation of bifacial modules does not meet the ideal expectation, and achieve the effect of improving the calculation accuracy

Active Publication Date: 2018-02-16
HOHAI UNIV CHANGZHOU
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Problems solved by technology

However, in the actual application of bifacial modules, the power generation of bifacial modules has not reached the ideal expectation, especially the power generation on the back of the module. In addition to some technical impacts of the battery itself, its installation method and installation environment also affect the module. Important Factors of Backside Power Generation

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  • Method of calculating array back radiation quantity of double-sided component
  • Method of calculating array back radiation quantity of double-sided component
  • Method of calculating array back radiation quantity of double-sided component

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Embodiment Construction

[0055] The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0056] The present invention provides a method for calculating the radiation amount on the rear side of the double-sided module array arrangement, which includes the following steps:

[0057] (1) Today's solar cells are coated with anti-reflection coatings on the surface of the components in order to use sunlight more efficiently. The sunlight reflected from the surface of the components is very small and negligible. The radiation sources on the back of the module mainly include direct light incident on the ground and reflected on the back of the module, scattered light incident on the ground and reflected on the back of the module, and air scattering radiation incident on the back of the double-sided module. When calculating the radiation...

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Abstract

The invention discloses a method of calculating array back radiation quantity of a double-sided component. Radiation quantity of direct light and scattered light reaching a ground and reflecting to the back of the double-sided component is calculated based on a view factor process model and a component array spatial geometric relationship; radiation quantity of scattered light directly reaching the back of the double-sided component is calculated using a Perez semispherical scattering radiation model. The influencing factors of double-sided component array, such as mounting inclination, mounting height, mounting spacing, mounting azimuth, and aerial direct illumination to scattering intensity ratio, are considered herein, the total quantity of radiation received by the back of the double-sided component can be accurately calculated, and optimizing the mounting mode of the solar double-sided component can be aided in conjunction with a component front radiation quantity model.

Description

technical field [0001] The invention relates to a method for calculating the radiation amount on the rear side of a double-sided component array arrangement, and belongs to the technical field of photovoltaic system design. Background technique [0002] With the maturity of photovoltaic module power generation technology, in some countries and regions, photovoltaic module power generation can achieve grid parity. However, the pursuit of higher conversion efficiency and lower cost of electricity is the eternal pursuit and strong driving force of the photovoltaic industry . In recent years, double-sided modules have attracted widespread attention due to their structure and the ability to generate electricity on both sides. Compared with traditional photovoltaic modules, double-sided modules use a double-sided glass structure, which has the advantages of strong PID resistance and strong wear resistance. . However, in the actual application of bifacial modules, the power gener...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20Y02E60/00
Inventor 黄国昆张臻钱茜于书魁梁旭丹
Owner HOHAI UNIV CHANGZHOU
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