Method of calculating photovoltaic power station array spacing based on ArcGIS and aspect value

A photovoltaic power station and calculation method technology, applied in calculation, electrical digital data processing, special data processing applications, etc., can solve problems such as low efficiency and unreasonable division of regions, and achieve high efficiency and accurate division of regions

Inactive Publication Date: 2016-01-20
POWERCHINA CHENGDU ENG
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Problems solved by technology

By introducing the concept of "slope aspect value", the present invention derives a formula suitable for calculating the spacing of various slope photovoltaic arrays, which is universal; at the same time, the division of photovoltaic power station areas is mostly done manually, which is inefficient and has many unreasonable divisions place

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  • Method of calculating photovoltaic power station array spacing based on ArcGIS and aspect value
  • Method of calculating photovoltaic power station array spacing based on ArcGIS and aspect value
  • Method of calculating photovoltaic power station array spacing based on ArcGIS and aspect value

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Embodiment

[0047]The calculation of photovoltaic array spacing is an important content in the design of photovoltaic power stations. The terrain of mountainous photovoltaic power stations is complex, and the orientation of hillsides is mostly not due to the south. There are various orientations such as southeast slope, southwest slope, and east slope. The calculation of the distance between the photovoltaic power station arrays is carried out in the directions of true south, true west, true east, and true north, which does not make use of the rational use of photovoltaic resources. The present invention introduces the concept of "slope aspect value" into the calculation of photovoltaic power station arrays to accurately calculate the distance between photovoltaic power station arrays in any orientation. A schematic diagram of the layout of photovoltaic arrays on a downward slope is shown in figure 1 . figure 1 The middle wedge-shaped area is the hillside, the two oblique rectangles are ...

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Abstract

The invention relates to calculation of photovoltaic power station array spacing and provides a method of calculating photovoltaic power station array spacing based on ArcGIS and an aspect value. Firstly, a system performs region division on a topographic map of a site on which a photovoltaic power station is to be constructed through ArcGIS; secondly, the system acquires an included angle between the slope of each region and a horizontal plane and records the included angle as a slope value alpha; the system acquires a clockwise included angle between the position of the slope and a due south direction and records the included angle as an aspect value gamma; the system calculates a solar elevation angle theta and a solar azimuth angle delta of each region; then the system determines the longitudinal length of an array and records the length as array height L, and an included angle between an inclined surface of a photovoltaic array and the horizontal plane is recorded as an array inclination angle beta; then the system calculates photovoltaic array spacing D according to the parameters by adopting a calculation formula as shown in the accompanying drawing; finally, the system obtains spacing between photovoltaic power stations to be constructed in each region according to the photovoltaic array spacing D of each region. The method is applicable to calculation of photovoltaic power station array spacing based on the aspect value.

Description

technical field [0001] The invention relates to the calculation of the spacing between photovoltaic power station arrays, in particular to a method for calculating the spacing between photovoltaic power station arrays based on slope values. Background technique [0002] At present, the calculation of the array spacing of mountain photovoltaic power stations is based on the measured topographic map, and the topographic map is manually divided into four areas: east slope, west slope, south slope, and north slope. The four areas of east, west, south, and north are calculated according to different formulas. spacing. [0003] Calculation of the distance between photovoltaic power stations on flat terrain is the earliest and most mature technology. The formula for calculating the distance between photovoltaic power station arrays on flat terrain in the photovoltaic power station design specification is: [0004] D = ( L ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 郁永静易一鹏周少平李良县
Owner POWERCHINA CHENGDU ENG
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