A wind resource calculation method

A calculation method and wind resource technology, applied in the field of wind resource calculation, can solve problems such as power generation loss and maintenance costs

Inactive Publication Date: 2017-11-28
CHINA DATANG CORP RENEWABLE POWER
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The experience and lessons at home and abroad show that the loss of power generation and increased maintenance costs caused by the wrong location of the wind farm will be far greater than the cost of a detailed site survey

Method used

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Embodiment Construction

[0071] The wind resource calculation method of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0072] like figure 1 It is a flow chart of the wind resource calculation method of the present invention, the method includes the following steps:

[0073] (1) Perform smoothing, coordinate translation and other processing on the original terrain data to generate a computational domain grid, and obtain the grid point spacing and the lateral area of ​​the computational domain according to the computational domain grid.

[0074] The computational domain grid is a three-dimensional grid, which is divided into multiple layers according to the horizontal height. Among them, the grid area of ​​the first layer is a rectangular area, and the surface formed by the rectangular area matches the terrain. The surface is horizontal.

[0075] Within the range defi...

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Abstract

The invention provides a wind resource calculation method. The original wind measurement data is analyzed and a model required for CFD calculation is established based on the boundary of the full-height atmosphere; the CFD solver is used to calculate the wind speed and turbulence distribution under the conditions of each wind direction; The wind speed and turbulence distribution, wind measuring tower coordinates, machine position coordinates, fan power data and wind condition data under various wind direction conditions are used to calculate the distribution of wind resources, and determine the location suitable for installing wind turbines in the wind farm; Methods The wind resources of wind farms where wind turbines have been installed are analyzed.

Description

technical field [0001] The invention relates to the technical field of wind farms, in particular to a wind resource calculation method for solving the micro site selection of wind farms with complex terrain. Background technique [0002] Micro site selection is the most important stage of wind farm construction. The main task is to conduct wind measurement based on the wind field selected at the macro site, use the data of wind measurement points to evaluate the wind resources in the wind field, and calculate the wind power of the entire wind field. The selection of wind turbines and the layout of wind turbines shall be carried out according to the topographical conditions and wind distribution. The micro site selection of the wind farm is to arrange the wind turbines on the basis of the macro site selection, so that the whole wind farm has better economic benefits. Experience and lessons at home and abroad show that the loss of power generation and increased maintenance co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06Q50/06
Inventor 辛克锋张晓东王吉远刘丽丽范忠瑶龙泉张辰源
Owner CHINA DATANG CORP RENEWABLE POWER
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