风电场风能资源评估中重要参数的计算与应用
发布时间：2018-08-29 19:29
【摘要】：我国为了调整和优化能源结构,发展清洁能源,出台了一系列引导和鼓励修建风电场的政策,大力发展风电产业。风电场开发和建设的一个基础和前提就是风能资源评估,即在对风电场风能资源的多寡、质量和分布情况做出判断和评价后,才能确定风力发电机的选型、安装的位置和高度等信息,这些直接关系着风电场的发电量和经济效益。风电场风能资源的评估工作是否准确是风能资源能否高效开发的关键。在风能资源评估中参数的计算过程和基础数据都比较复杂,人工难以准确快速地对它们进行统计和计算。因此,为了准确、方便地计算风能资源评估参数,进而对风电场的风能资源进行评估,做了如下的主要工作:(1)根据国家相关标准,针对风电场的实际测风数据对其风能资源评估中重要参数的计算方法进行了研究,包括十几种风能资源评估所需的参数及其重要的中间参数,为风电场风能资源评估提供了全面、可靠的参考和依据。其中,将最小二乘法拟合直线的方法应用在风切变指数的计算过程中,经过推导得出计算公式,并提出了5种计算风切变指数的方法,采用反推已知风速的方法来分析每种方法误差。在实际计算中,通过比较5种方法的误差来得到更准确的风切变指数值,大大增加了风电场风能资源评估的准确度。(2)以上述参数的计算方法为核心,利用Microsoft Visual Studio 2010作为开发平台,SQL Server部署数据库,使用Dev Express界面控件,运用C#程序设计语言和三层架构的思想设计开发了内蒙古风电场风能资源评估系统,不仅可以得到风能评估中所需要的参数,而且还增加了绘制风功率曲线图、风能频率直方图和风向玫瑰图等风况图表的功能。(3)以内蒙古乌兰察布市地区某风电场为例,应用内蒙古风电场风能资源评估系统计算出风能资源评估中的重要参数,并绘制出各种风况图表,得出报告形式的评估结果。使用户能够摆脱对复杂数据的统计和计算,得到形象、直观而且规范的评估报告。为了增加系统的通用性,对系统的设置项稍作调整就可以对其他地区的风能进行评估。
[Abstract]:In order to adjust and optimize the energy structure and develop clean energy, China has issued a series of policies to guide and encourage the construction of wind farms and vigorously develop wind power industry. One of the foundations and premises for wind farm development and construction is wind energy resource assessment. That is, after judging and evaluating the amount, quality and distribution of wind power resources in wind farms, the selection of wind turbines can be determined. The location and height of the installation are directly related to the power generation and economic benefits of the wind farm. The evaluation of wind energy resources in wind farms is the key to the efficient development of wind energy resources. The calculation process and basic data of the parameters in wind energy resource evaluation are very complicated, so it is difficult to calculate them accurately and quickly. Therefore, in order to accurately and conveniently calculate the evaluation parameters of wind energy resources and then evaluate wind energy resources of wind farms, the following main work has been done: (1) according to the relevant national standards, Based on the actual wind data of wind farm, the calculation method of important parameters in wind energy resource evaluation is studied, including a dozen kinds of parameters needed for wind energy resource evaluation and their important intermediate parameters. It provides a comprehensive and reliable reference and basis for wind energy resource evaluation in wind farm. Among them, the method of least square fitting straight line is applied to the calculation of wind shear index, and five methods of calculating wind shear index are put forward. The error of each method is analyzed by using the method of backward extrapolating the known wind speed. In the actual calculation, the more accurate wind shear index value can be obtained by comparing the errors of the five methods, which greatly increases the accuracy of wind power resource evaluation in wind farm. (2) the calculation method of the above parameters is the core. Using Microsoft Visual Studio 2010 as development platform, using Dev Express interface control, using C # programming language and three-tier structure, the wind energy resource evaluation system of Inner Mongolia wind farm is designed and developed. Not only the parameters needed in wind energy assessment can be obtained, but also the functions of drawing wind power graph, wind energy frequency histogram and wind direction rose chart can be added. (3) take a wind farm in Wulanchabu, Inner Mongolia as an example. The wind energy resource evaluation system of Inner Mongolia wind farm is used to calculate the important parameters of wind energy resource evaluation, and various wind condition charts are drawn, and the evaluation results in the form of report are obtained. Enables users to get rid of the statistics and calculations of complex data and obtain visual, intuitive and standardized evaluation reports. In order to increase the generality of the system, the wind energy in other regions can be evaluated by adjusting the system setting term.
【学位授予单位】：内蒙古工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM614
本文编号：2212185
[Abstract]:In order to adjust and optimize the energy structure and develop clean energy, China has issued a series of policies to guide and encourage the construction of wind farms and vigorously develop wind power industry. One of the foundations and premises for wind farm development and construction is wind energy resource assessment. That is, after judging and evaluating the amount, quality and distribution of wind power resources in wind farms, the selection of wind turbines can be determined. The location and height of the installation are directly related to the power generation and economic benefits of the wind farm. The evaluation of wind energy resources in wind farms is the key to the efficient development of wind energy resources. The calculation process and basic data of the parameters in wind energy resource evaluation are very complicated, so it is difficult to calculate them accurately and quickly. Therefore, in order to accurately and conveniently calculate the evaluation parameters of wind energy resources and then evaluate wind energy resources of wind farms, the following main work has been done: (1) according to the relevant national standards, Based on the actual wind data of wind farm, the calculation method of important parameters in wind energy resource evaluation is studied, including a dozen kinds of parameters needed for wind energy resource evaluation and their important intermediate parameters. It provides a comprehensive and reliable reference and basis for wind energy resource evaluation in wind farm. Among them, the method of least square fitting straight line is applied to the calculation of wind shear index, and five methods of calculating wind shear index are put forward. The error of each method is analyzed by using the method of backward extrapolating the known wind speed. In the actual calculation, the more accurate wind shear index value can be obtained by comparing the errors of the five methods, which greatly increases the accuracy of wind power resource evaluation in wind farm. (2) the calculation method of the above parameters is the core. Using Microsoft Visual Studio 2010 as development platform, using Dev Express interface control, using C # programming language and three-tier structure, the wind energy resource evaluation system of Inner Mongolia wind farm is designed and developed. Not only the parameters needed in wind energy assessment can be obtained, but also the functions of drawing wind power graph, wind energy frequency histogram and wind direction rose chart can be added. (3) take a wind farm in Wulanchabu, Inner Mongolia as an example. The wind energy resource evaluation system of Inner Mongolia wind farm is used to calculate the important parameters of wind energy resource evaluation, and various wind condition charts are drawn, and the evaluation results in the form of report are obtained. Enables users to get rid of the statistics and calculations of complex data and obtain visual, intuitive and standardized evaluation reports. In order to increase the generality of the system, the wind energy in other regions can be evaluated by adjusting the system setting term.
【学位授予单位】：内蒙古工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM614
【引证文献】
相关会议论文 前1条
1 刘焕彬;董旭光;;风电场风能资源评估综述[A];中国气象学会2007年年会气候学分会场论文集[C];2007年
，本文编号：2212185
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