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Wind-field turbulence computing method and wind farm micro-siting method and device

A calculation method and wind field technology, applied in calculation, electrical digital data processing, special data processing applications, etc., can solve the problem of unsatisfactory micro-site selection of wind turbines, and achieve optimal micro-site selection, flexible calculation models, and calculation accuracy high effect

Inactive Publication Date: 2014-04-23
SINOVEL WIND GRP
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Problems solved by technology

[0004] Due to the irregularity of the wind field topography and the different distribution density, the wind field turbulence intensity calculated according to the above-mentioned empirical turbulence calculation method will be very different from the actual wind field turbulence intensity, resulting in the Imperfect micro siting in wind farms

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  • Wind-field turbulence computing method and wind farm micro-siting method and device

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] figure 1 It is a flow chart of an embodiment of the wind field turbulence calculation method provided by the present invention. The method of this embodiment includes:

[0021] Step 101: Set the surface roughness and obstacles in the wind field area according to the actual situation in the wind field area to be selected, and establish a th...

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Abstract

The invention discloses a wind-field turbulence computing method and a wind farm micro-siting method and device. The wind-field turbulence computing method comprises the first step of setting the roughness and barriers of the earth surface in a wind field area and establishing a three dimensional solid model of the terrain in the wind field area according to the actual situation in the wind field area to be selected, the second step of setting a fan solid model at a fan point location to be selected in the wind field area and establishing a rotational flow area corresponding to a blade rotation area of the fan solid model, and the third step of computing the turbulence intensity of all points in the wind field area when blades of the fan solid model rotate in the rotational flow area by utilizing computational fluid dynamics software. According to the wind turbulence computing method and the wind field micro-siting method and device, the computational accuracy of the turbulence intensity can be improved, and therefore micro-siting of a fan in a wind farm can be conveniently and accurately performed.

Description

technical field [0001] The invention relates to wind power generation technology, in particular to a wind field turbulence calculation method, a wind farm micro site selection method and a device. Background technique [0002] The turbulent flow in the wind farm has an important impact on the power generation and fatigue life of the wind turbine. Therefore, in the construction of the wind farm, accurate calculation of the turbulent flow in the wind farm is of great significance to the micro-site selection of the wind turbine in the wind farm. [0003] In the prior art, the calculation of field turbulence is first to calculate the environmental turbulence, then calculate the additional turbulence in the wake area of ​​each fan, and finally calculate the effective turbulence intensity at the height of the hub by superimposing the environmental turbulence and the additional turbulence. The method usually adopts the empirical model and empirical coefficient of turbulence intensi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/06
Inventor 武继涛郭慧斌刘航
Owner SINOVEL WIND GRP
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