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Acquisition Method of Wind Resource Value Based on Mass Conservation Diagnosis Model

An acquisition method and quality conservation technology, applied in the field of acquisition of wind resource values, can solve problems such as inability to thoroughly explain the law of influence

Active Publication Date: 2018-04-10
TSINGHUA UNIV +3
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  • Summary
  • 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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  • Acquisition Method of Wind Resource Value Based on Mass Conservation Diagnosis Model
  • Acquisition Method of Wind Resource Value Based on Mass Conservation Diagnosis Model
  • Acquisition Method of Wind Resource Value Based on Mass Conservation Diagnosis Model

Examples

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Effect test

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 method for obtaining wind resource values, comprising the following steps: obtaining measured data of wind fields and constructing initial wind fields; setting model parameters, fixing the value of α1 to 1, and using long-term wind speed sequences based on empirical orthogonal functions The decomposed spatial component numerical relationship is used as a measure standard, and the dominant wind direction analysis results of each anemometer tower are used as a reference for the wind direction diagnosis effect to determine α2; the initial wind field is adjusted so that the wind field satisfies the mass conservation equation in the entire space, and Total adjustments are minimal.

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 Patents(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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