【摘要】：我國為了調(diào)整和優(yōu)化能源結(jié)構(gòu),發(fā)展清潔能源,出臺了一系列引導(dǎo)和鼓勵修建風(fēng)電場的政策,大力發(fā)展風(fēng)電產(chǎn)業(yè)。風(fēng)電場開發(fā)和建設(shè)的一個基礎(chǔ)和前提就是風(fēng)能資源評估,即在對風(fēng)電場風(fēng)能資源的多寡、質(zhì)量和分布情況做出判斷和評價后,才能確定風(fēng)力發(fā)電機(jī)的選型、安裝的位置和高度等信息,這些直接關(guān)系著風(fēng)電場的發(fā)電量和經(jīng)濟(jì)效益。風(fēng)電場風(fēng)能資源的評估工作是否準(zhǔn)確是風(fēng)能資源能否高效開發(fā)的關(guān)鍵。在風(fēng)能資源評估中參數(shù)的計算過程和基礎(chǔ)數(shù)據(jù)都比較復(fù)雜,人工難以準(zhǔn)確快速地對它們進(jìn)行統(tǒng)計和計算。因此,為了準(zhǔn)確、方便地計算風(fēng)能資源評估參數(shù),進(jìn)而對風(fēng)電場的風(fēng)能資源進(jìn)行評估,做了如下的主要工作:(1)根據(jù)國家相關(guān)標(biāo)準(zhǔn),針對風(fēng)電場的實(shí)際測風(fēng)數(shù)據(jù)對其風(fēng)能資源評估中重要參數(shù)的計算方法進(jìn)行了研究,包括十幾種風(fēng)能資源評估所需的參數(shù)及其重要的中間參數(shù),為風(fēng)電場風(fēng)能資源評估提供了全面、可靠的參考和依據(jù)。其中,將最小二乘法擬合直線的方法應(yīng)用在風(fēng)切變指數(shù)的計算過程中,經(jīng)過推導(dǎo)得出計算公式,并提出了5種計算風(fēng)切變指數(shù)的方法,采用反推已知風(fēng)速的方法來分析每種方法誤差。在實(shí)際計算中,通過比較5種方法的誤差來得到更準(zhǔn)確的風(fēng)切變指數(shù)值,大大增加了風(fēng)電場風(fēng)能資源評估的準(zhǔn)確度。(2)以上述參數(shù)的計算方法為核心,利用Microsoft Visual Studio 2010作為開發(fā)平臺,SQL Server部署數(shù)據(jù)庫,使用Dev Express界面控件,運(yùn)用C#程序設(shè)計語言和三層架構(gòu)的思想設(shè)計開發(fā)了內(nèi)蒙古風(fēng)電場風(fēng)能資源評估系統(tǒng),不僅可以得到風(fēng)能評估中所需要的參數(shù),而且還增加了繪制風(fēng)功率曲線圖、風(fēng)能頻率直方圖和風(fēng)向玫瑰圖等風(fēng)況圖表的功能。(3)以內(nèi)蒙古烏蘭察布市地區(qū)某風(fēng)電場為例,應(yīng)用內(nèi)蒙古風(fēng)電場風(fēng)能資源評估系統(tǒng)計算出風(fēng)能資源評估中的重要參數(shù),并繪制出各種風(fēng)況圖表,得出報告形式的評估結(jié)果。使用戶能夠擺脫對復(fù)雜數(shù)據(jù)的統(tǒng)計和計算,得到形象、直觀而且規(guī)范的評估報告。為了增加系統(tǒng)的通用性,對系統(tǒng)的設(shè)置項(xiàng)稍作調(diào)整就可以對其他地區(qū)的風(fēng)能進(jìn)行評估。
[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.
【學(xué)位授予單位】：內(nèi)蒙古工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TM614

【引證文獻(xiàn)】

相關(guān)會議論文 前1條

1 劉煥彬;董旭光;;風(fēng)電場風(fēng)能資源評估綜述[A];中國氣象學(xué)會2007年年會氣候?qū)W分會場論文集[C];2007年

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本文編號：2212185