Modeling method of surface roughness change model for wind power plant micro-sitting selection

A technology of surface roughness and variation model, applied in data processing applications, design optimization/simulation, special data processing applications, etc., can solve problems such as difficult site selection and poor power grid stability

Active Publication Date: 2014-06-25
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0005] In the process of realizing the present invention, the inventor found that there are at least defects in the prior art such as poor stability of the power grid and difficulty in site selection

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  • Modeling method of surface roughness change model for wind power plant micro-sitting selection
  • Modeling method of surface roughness change model for wind power plant micro-sitting selection
  • Modeling method of surface roughness change model for wind power plant micro-sitting selection

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Embodiment Construction

[0042] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0043] According to an embodiment of the present invention, such as figure 1 As shown, a modeling method of the surface roughness change model for wind farm micro-site selection is provided, and the specific description is as follows:

[0044] (1) Roughness variation model

[0045]Assuming that the upstream undisturbed incoming flow reaches the position of the wind measuring tower after being disturbed by two roughness changes, as shown in figure 1 As shown, the wind profile of the wind turbine at this time should be spliced ​​by three parts, respectively corresponding to the roughness z 01 , friction speed u *1 the u 1 (z), corresponding to roughness z 02 , fr...

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Abstract

The invention discloses a modeling method of a surface roughness change model for wind power plant micro-sitting selection. The modeling method mainly comprises the steps of setting up the roughness change model, and solving the set roughness change model. According to the modeling method of the surface roughness change model for wind power plant micro-sitting selection, the defects that in the prior art, a power grid is poor in stability and site selection is difficult are overcome, and the advantages that the power grid is good in stability and the site selection is easy are achieved.

Description

technical field [0001] The invention relates to the technical field of wind farm micro-site selection in the process of wind power generation, in particular to a modeling method for a surface roughness variation model for wind farm micro-site selection. Background technique [0002] Most of the large-scale wind power bases generated after my country's wind power enters the stage of large-scale development are located in the "Three North Regions" (Northwest, Northeast, and North China). Large-scale wind power bases are generally far away from the load center, and their power needs to be transmitted to the load center through long distances and high voltage. To digest. Due to the intermittence, randomness and volatility of wind resources, the wind power output of large-scale wind power bases will fluctuate in a large range, which will further lead to fluctuations in the charging power of the transmission network and bring a series of problems to the safety of power grid operati...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
CPCG06F2119/06Y02E60/00Y04S40/20G06F30/20G06F2111/10
Inventor 汪宁渤路亮姜文玲丁坤周识远李津张金平
Owner STATE GRID CORP OF CHINA
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