Wind resource value obtaining method based on mass conservation diagnosis mode

An acquisition method and wind resource technology, applied in resources, data processing applications, instruments, etc., can solve problems such as inability to thoroughly explain the law of influence

Active Publication Date: 2014-10-22
TSINGHUA UNIV +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Obviously, this simplified calculation method cannot thoroughly explain the influence of some external factors on resources, especially in some special cases, it is difficult to fundamentally explain the reason

Method used

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  • Wind resource value obtaining method based on mass conservation diagnosis mode
  • Wind resource value obtaining method based on mass conservation diagnosis mode
  • Wind resource value obtaining method based on mass conservation diagnosis mode

Examples

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Embodiment 1

[0059] The method for acquiring and analyzing wind resource values ​​based on the mass conservation diagnostic mode described in the present invention is calculated according to the historical data of a certain wind farm in northern my country, and the specific steps are as follows:

[0060] (1) Construction of the initial field

[0061] Firstly, select the research area, where the landform characteristics are basically the same, the roughness has no obvious change, and the regional contour lines are as follows: figure 2 As shown in the figure, it can be seen from the figure that the topographic slope of the entire region is relatively large only in the northwest region, while the topographic slope of other regions is very small.

[0062] Considering the limitations of computing power and computing time, here image 3 The area in is used as the calculation condition, which can reflect the typical terrain characteristics of this place. In the calculation, the horizontal grid...

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Abstract

The invention provides a wind resource value obtaining method based on a mass conservation diagnosis mode. The method comprises the following steps: obtaining actual measured data of a wind field and constructing an initial wind filed; setting a model parameter, fixing the value of alpha1 as 1, and by taking a long-time wind speed sequence space component value relation based on empirical orthogonal function decomposition as a measurement standard and by taking a dominant wind direction analysis result of each wind measurement tower as a reference of a wind direction diagnosis effect, determining alpha2; and adjusting the initial wind field to enable the wind field to satisfy a mass conservation equation and a total adjusting amount to be the smallest.

Description

technical field [0001] The invention belongs to the technical field of research on basic characteristics of wind power generation, and in particular relates to a method for acquiring wind resource values ​​based on a mass conservation diagnosis mode. Background technique [0002] The wind power industry is changing with each passing day, and the characteristics analysis and modeling of wind power and wind resources, which are the basis of various wind power research fields, have become particularly important. Especially with the continuous expansion of wind farms and wind power clusters, the penetration power of wind power has increased significantly, and the distribution and change characteristics of wind power\wind resources at different time and space scales have become the primary issues that need to be considered in many researches and actual operations. Fully understanding the commonality and characteristics of wind resources and wind power output in different regions,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
Inventor 乔颖鲁宗相汪宁渤路亮吕清泉赵龙
Owner TSINGHUA UNIV
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