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Wind energy resource quality comprehensive quantitative evaluation method

A quantitative evaluation and wind resource technology, applied in the field of comprehensive quantitative evaluation of wind energy resource quality, can solve problems such as inability to evaluate wind energy resource quality, and achieve the effect of reducing the need for flexibility

Pending Publication Date: 2020-09-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the current wind energy resource assessment method only conducts potential assessment and cannot assess the quality of wind energy resources, and provides a comprehensive quantitative assessment method for wind energy resource quality

Method used

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  • Wind energy resource quality comprehensive quantitative evaluation method
  • Wind energy resource quality comprehensive quantitative evaluation method

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specific Embodiment approach 1

[0020] Specific implementation mode 1: This implementation mode records a method for comprehensive quantitative assessment of wind energy resource quality, and the steps of the method are as follows:

[0021] Step 1: Based on the wind power density index, combined with the actual wind speed data, to quantitatively evaluate the potential of wind resources;

[0022] Step 2: Propose the evaluation index of wind resource volatility, which can quantitatively describe the fluctuation range and fluctuation rate of wind resource, and realize the quantitative description of wind resource volatility; there are two evaluation indexes for wind resource volatility, one is the following The mentioned wind power density fluctuation intensity is used to quantitatively describe the fluctuation range of wind resources; the second is the variation of wind power density mentioned later, which is used to quantitatively describe the fluctuation rate of wind resources;

[0023] Step 3: Based on the ...

specific Embodiment approach 2

[0024] Embodiment 2: A method for comprehensive quantitative assessment of the quality of wind energy resources described in Embodiment 1. In step 1, the specific process for quantitatively evaluating the potential of wind resources is as follows:

[0025] The potential of wind resources is usually evaluated quantitatively by wind power density. The specific calculation method of wind power density WPD is as follows:

[0026]

[0027] In the formula, ρ-air density, kg / m 3 , v-wind speed, m / s; the greater the wind power density, the more abundant the potential of wind resources;

[0028] Define the normalized wind power density WPD′:

[0029]

[0030] In the formula, WPD max - wind power density maximum, WPD min - Wind power density minimum. The normalized wind power density WPD' ranges from 0 to 1, and the closer to 1, the more abundant the potential of wind resources.

specific Embodiment approach 3

[0031] Embodiment 3: A method for comprehensive quantitative evaluation of wind energy resource quality described in Embodiment 1. In step 2, the specific process of quantitatively describing the volatility of wind resources is as follows:

[0032] (1) The quantitative description of wind resource volatility includes two parts: wind resource fluctuation range and fluctuation rate. Firstly, wind power density fluctuation intensity I WPD Quantitatively describe the fluctuation range of wind resources,

[0033]

[0034] In the formula, Average wind power density, σ WPD - standard deviation of wind power density; I WPD The larger the value, the larger the fluctuation range of the wind power density;

[0035] Define the normalized wind power density fluctuation intensity I WPD ':

[0036]

[0037] In the formula, - the maximum value of wind power density fluctuation intensity, - minimum value of wind power density fluctuation intensity; normalized wind power density...

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Abstract

The invention discloses a wind energy resource quality comprehensive quantitative evaluation method, and belongs to the technical field of wind energy resource utilization. In order to solve the problem that an existing wind energy resource assessment method only performs potential assessment and cannot assess the quality of wind energy resources, the potential of the wind resources is quantitatively assessed based on a wind power density index in combination with actual wind speed data; an evaluation index of the wind resource volatility is provided, and the fluctuation range and the fluctuation rate of the wind resource can be quantitatively described; and a quantitative evaluation index of the wind resource quality is defined based on the wind power density and the wind resource volatility quantitative evaluation index, thereby realizing comprehensive quantitative evaluation of the potential and quality of the wind resource. According to the method, the wind resource quality comprehensive quantitative evaluation index is established based on the wind power density and the wind resource volatility quantitative evaluation index. The potential of the wind resources can be described, the volatility of the wind resources can be quantitatively reflected, and the quality of the wind resources can be evaluated, so that the comprehensive quantitative evaluation of the quality of thewind resources can be realized.

Description

technical field [0001] The invention belongs to the technical field of wind energy resource utilization, and in particular relates to a comprehensive quantitative evaluation method for wind energy resource quality. Background technique [0002] With the rapid development of modern industry, human beings are facing the plight of depletion of energy resources and increasingly serious environmental pollution. For this reason, countries all over the world are actively adjusting the energy industry structure and vigorously developing renewable energy, such as solar energy, biomass energy, wind energy, geothermal energy, etc., to alleviate the above problems. Wind energy is considered to be the most promising new energy technology in the world because of its clean and inexhaustible characteristics. The development and utilization of wind energy has become an important strategic decision for sustainable development in many countries in the world. However, affected by factors such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06Y02P90/82
Inventor 任国瑞万杰刘浩张庭赫汪岩佳
Owner HARBIN INST OF TECH
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