Determining method and device of optimal installing inclination angle of photovoltaic module

A technology for optimal installation of inclination angles and photovoltaic modules, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as scarcity of land and roof resources, and achieve the effect of low cost of electricity and accurate calculation

Inactive Publication Date: 2017-02-01
CSI CELLS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the land and roof resources that can be used to build photovoltaic power plants become more and more scarce, the calculation process of the optimal inclination angle will inevitably become a key parameter that cannot be ignored

Method used

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  • Determining method and device of optimal installing inclination angle of photovoltaic module
  • Determining method and device of optimal installing inclination angle of photovoltaic module
  • Determining method and device of optimal installing inclination angle of photovoltaic module

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Embodiment 1

[0034] figure 1 It is a flowchart of a method for determining the optimal installation inclination angle of photovoltaic modules provided by Embodiment 1 of the present invention. This embodiment can be applied to make the photovoltaic system’s In the case of the minimum cost per kilowatt-hour, the method can be performed by a device for determining the optimal installation inclination angle of photovoltaic modules, which specifically includes the following steps:

[0035] Step 110, determining the light transmittance of the square array surface of the photovoltaic module corresponding to the light incident angles at different moments within the set time period.

[0036] Among them, the set time period can be from 9:00 a.m. to 3:00 p.m., so as to estimate the total amount of radiation on the square array (inclined surface) of the photovoltaic module during the time period of a day when the solar radiation intensity is relatively high The total amount of radiation on the incli...

Embodiment 2

[0143] In the second embodiment of the present invention, taking Changzhou (N31.87°, E119.99°) in the Yangtze River Delta region as an example, the optimal installation inclination angle of photovoltaic modules determined by the method provided in the first embodiment of the present invention is compared with the traditional optimal inclination angle The optimal installation inclination angle of photovoltaic modules determined by the calculation method is compared.

[0144] First, the traditional optimal inclination angle calculation method is used to calculate the radiation data under different installation inclination angles (0-90°) in Changzhou area, see the table below for details.

[0145] Table 1 is the annual radiation dose of the inclined surface under different installation inclination angles in Changzhou area obtained by using the traditional method.

[0146]

[0147] According to the data in Table 1, it can be drawn that Image 6 Shown is a relationship diagram ...

Embodiment 3

[0164] Figure 9 It is a structural schematic diagram of a device for determining the optimum installation inclination angle of a photovoltaic module in Embodiment 3 of the present invention. Such as Figure 9 As shown, the determining device specifically includes:

[0165] The light transmittance determination module 210 is used to determine the light transmittance of the square array surface of the photovoltaic module corresponding to the light incident angle at different moments within the set time period;

[0166] The direct radiation amount calculation module 220 is used to calculate the direct radiation amount of the inclined surface of the photovoltaic module according to the light transmittance;

[0167] The total daily radiation amount determination module 230 is used to determine the daily total radiation amount of the photovoltaic assembly within the set time period according to the direct radiation amount, scattered radiation amount and reflected radiation amount...

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Abstract

The invention discloses a determining method and device of the optimal installing inclination angle of a photovoltaic module, and relates to a photovoltaic equipment arrangement technology. The method comprises the steps of determining the light transmittance of photovoltaic module square matrix surfaces corresponding to light ray incidence angles at different moments in the set time period; calculating the direct radiation quantity of the inclination area of the photovoltaic module according to the light transmittance; determining the total daily radiation quantity of the photovoltaic module in the daily set time period according to the direct radiation quantity, the scattering radiation quantity and the reflecting radiation quantity of the inclination area of the photovoltaic module; determining the total power generation quantity of a photovoltaic system in one period according to the total daily radiation quantity and the installed capacity on the set land area; determining the cost per kilowatt hour of electricity in unit area according to the total power generation quantity and the static investment cost of the photovoltaic system; determining the inclination angle corresponding to the minimum value of the cost per kilowatt hour of electricity as the optimal installing inclination angle of the photovoltaic module. The problem that a traditional optimal inclination angle calculation method does not consider the growing economy is solved; the effect that the cost per kilowatt hour of electricity is the lowest is achieved.

Description

technical field [0001] Embodiments of the present invention relate to photovoltaic equipment layout technology, and in particular to a method and device for determining an optimal installation inclination angle of a photovoltaic module. Background technique [0002] Photovoltaic modules are the main form of solar cells in practical applications. It is the mainstream product in the solar photovoltaic market. Photovoltaic modules can not only be installed on power stations and grounds, but have gradually been installed on roofs, curtain walls and other building surfaces. [0003] The installation inclination angle of photovoltaic modules has a great influence on the power generation effect, floor area, and three-dimensional space occupancy. The installation inclination angle refers to the angle between the panel surface of photovoltaic modules and the horizontal plane. In order to ensure the best power generation effect, based on the structure of the photovoltaic module itself...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/06
CPCG06F30/20G06Q50/06Y02E60/00
Inventor 邓士锋董经兵夏正月徐洁夏萍邢国强
Owner CSI CELLS CO LTD
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