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Photovoltaic assembly inclination angle and array pitch cross feedback multi-factor comprehensive calculation method

A photovoltaic module and comprehensive computing technology, applied in computing, special data processing applications, instruments, etc.

Active Publication Date: 2015-01-14
CHANGJIANG SURVEY PLANNING DESIGN & RES
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Problems solved by technology

[0051] However, the above method does not mention the comprehensive consideration of the shadow loss of the array throughout the year, the amount of DC cables used for photovoltaic power generation units, and the loss of DC cables, and the determination of the optimal inclination angle of the components and the optimal front-to-back spacing of the array, etc.

Method used

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  • Photovoltaic assembly inclination angle and array pitch cross feedback multi-factor comprehensive calculation method
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  • Photovoltaic assembly inclination angle and array pitch cross feedback multi-factor comprehensive calculation method

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Embodiment

[0084] Placed flat photovoltaic cells can receive 2298.19kWh / m of solar radiation per year 2 .

[0085] Table 2: The annual average radiation of different slopes of weather stations in the area where A photovoltaic power station is located (kWh / m 2 )

[0086]

[0087] (2) Preliminary calculation of array spacing

[0088] When determining the front and rear spacing of photovoltaic modules, according to the local site conditions, each row is composed of 9 groups of photovoltaic units arranged side by side, and a substation center is placed between the two rows of photovoltaic arrays. The height of the substation center is 4m and the width is 3.5m. After considering the shadow , the east-west distance between two rows is set to 20m. Introduce the above tandem size and the optimal installation inclination angle of photovoltaic modules into professional solar calculation software for verification, and the calculation results are shown in the table below.

[0089] Table 3: Ca...

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Abstract

The invention relates to a photovoltaic assembly inclination angle and array pitch cross feedback multi-factor comprehensive calculation method, which sequentially comprises the following four steps including (1) assembly inclination angle preliminary calculation; (2) array pitch preliminary calculation; (3) array pitch optimization; and (4) assembly inclination angle optimization. The comprehensive calculation method provided by the invention has the advantages that the shadow loss of an assembly in the whole year time, the direct current cable consumption of a photovoltaic power generation unit, the direct current cable wire loss and the photovoltaic array occupied area are comprehensively considered, the optimal inclination angle of the assembly and the fore-and-aft pitch of arrays are determined, and in addition, the comprehensive calculation method capable of reasonably determining the assembly inclination angle and the array pitch for pursuing the power generation benefit maximization is provided.

Description

technical field [0001] The invention relates to a photovoltaic power station layout method, in particular to a photovoltaic module inclination angle and array spacing cross-feedback multi-factor comprehensive calculation method. Background technique [0002] The installation inclination angle of photovoltaic modules and the north-south spacing of arrays in large-scale ground photovoltaic power plants not only affect the investment benefits of photovoltaic power plants, but also affect the power generation of photovoltaic power plants. In order to improve the efficiency of the photovoltaic power generation system and make full use of the electric energy generated by the photovoltaic array, it is necessary to innovate and optimize the design of the photovoltaic power generation system, especially the inclination angle setting and array spacing of the photovoltaic modules of large-scale ground photovoltaic power plants. [0003] When determining the optimal inclination angle of...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCY02E60/00
Inventor 赵鑫刘海波李德叶任时苏毅张涛
Owner CHANGJIANG SURVEY PLANNING DESIGN & RES
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