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Wind resource computation 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: 2015-02-04
CHINA DATANG CORP RENEWABLE POWER
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  • Summary
  • Abstract
  • Description
  • 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] Such as 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 d...

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Abstract

The invention provides a wind resource computation method, which comprises the following steps of analyzing original wind measurement data, and establishing a model required by CFD (computational fluid dynamics) computation on the basis of a full-height atmosphere boundary; computing wind speed and turbulent flow distribution under each wind direction condition by virtue of a CFD resolver; computing a wind resource distribution condition according to the wind speed and turbulent flow distribution under each wind direction condition, wind measurement mast coordinates, machine position coordinates, fan power data and wind condition data, and determining a position where a wind turbine generator is suitable to be mounted in a wind power plant. The method can also be used for analyzing wind resources of the wind power plant where the wind turbine generator is arranged.

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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IPC IPC(8): G06F19/00
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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