【正文】 l energy like coal， oil and natural gas is not only restricted ,but also causing serious air pollution .As a clean and renewable energy , the wind power has gotten a quick development and bee one of the most promising new energies. Therefore, the utilization of wind power development is regarded by many countries in the world. By taking directdrive permanent mag synchronous wind power system as an example, several ma ximum power point tracking control method of the current wind power generation system is discussed and pared in this paper, then one of the methods is simulated and verified. Based on the current status and foreground of wind power industrial home and abroad, the paper firstly describes the structure and position of wind turbines operating principle, and secondly analysis maximum power of the wind turbine control principles and methods, and then pares the optimum tip speed ratio control, the best power curve control, and mountain climbing search method. Then a model of permanent mag direct drive wind turbine is built in MATLAB/SIMULINK based on the mathematical model, include rotor model, permanent mag generator model and the control system model. And the simulation models are used to validating the method of the optimum tip speed ratio control below the rated wind speed. Keywords： Wind Power。而風(fēng)能最為一種清潔可再生能源，發(fā)展迅速，已經(jīng)成為世界新能源最主要的發(fā)展方向之一，因此，對風(fēng)能的開發(fā)和利用已經(jīng)受到了世界各國的高度重視。 涉密論文按學(xué)校規(guī)定處理。對本文的研究做出重要貢獻(xiàn)的個人和集體，均已在文中以明確方式標(biāo)明。對本研究提供過幫助和做出過貢獻(xiàn)的個人或集體，均已在文中作了明確的說明并表示了謝意。盡我所知，除文中特別加以標(biāo)注和致謝的地方外，不包含其他人或組織已經(jīng)發(fā)表或公布過的研究成果，也不包含我為獲得 及其它教育機(jī)構(gòu)的學(xué)位或?qū)W歷而使用過的材料。除了文中特別加以標(biāo)注引用的內(nèi)容外，本論文不包含任何其他個人或集體已經(jīng)發(fā)表或撰寫的成果作品。本人授權(quán) 大學(xué)可以將本學(xué)位論文的全部或部分內(nèi)容編入有關(guān)數(shù)據(jù)庫進(jìn)行檢索，可以采用影印、縮印或掃描等復(fù)制手段保存和匯編本學(xué)位論文。常規(guī)能源如：煤、石油、天然氣等，不僅 資源有限，而且其應(yīng)用時造成了嚴(yán)重的環(huán)境問題。基于他們的數(shù)學(xué)模型在 MATLAB/SIMULINK 中分別搭建了包括風(fēng)力機(jī)氣動模型、 dq 坐標(biāo)系下永磁發(fā)電機(jī)模型和控制系統(tǒng)模型等，在此基礎(chǔ)上建立了直驅(qū)式永磁風(fēng)力發(fā)電系統(tǒng)的模型，并采用最佳葉尖速比控制法，對風(fēng)力機(jī)在額定風(fēng)速以下進(jìn)行了仿真，通過仿真驗(yàn)證了該方法的控制效果。 Simulation － VI－ 目 錄 畢業(yè)設(shè)計(jì) (論文 )任務(wù)書 ............................................................................................................. 1 摘 要 ........................................................................................................................................ IV ABSTRACT ..............................................................................................................................V 第一章 緒論 .............................................................................................................................. 1 課題背景 ......................................................................................................................... 1 世界能源消費(fèi)現(xiàn)狀 .................................................................................................. 1 國外風(fēng)能資源與開發(fā)現(xiàn)狀 ...................................................................................... 3 國內(nèi)風(fēng)能資源的開發(fā)與現(xiàn)狀 .................................................................................. 4 風(fēng)力發(fā)電技術(shù)現(xiàn)狀及發(fā)展 ............................................................................................. 5 風(fēng)力發(fā)電技術(shù)現(xiàn)狀 .................................................................................................. 5 風(fēng)力發(fā)電技術(shù)的發(fā)展 .............................................................................................. 7 主要研究內(nèi)容 ................................................................................................................. 9 第二章 風(fēng)力發(fā)電系統(tǒng)介紹 .................................................................................................... 11 風(fēng)力發(fā)電系統(tǒng)的總體結(jié)構(gòu) ........................................................................................... 11 風(fēng)力機(jī) .................................................................................................................... 11 發(fā)電機(jī) .................................................................................................................... 12 風(fēng)力發(fā)電系統(tǒng)的理論基礎(chǔ) ........................................................................................... 13 風(fēng)能的計(jì)算 ............................................................................................................ 13 風(fēng)能的貝茲理論 .................................................................................................... 14 葉尖速比 ................................................................................................................ 15 風(fēng)力機(jī)特性 ............................................................................................................ 16 本章小結(jié) ....................................................................................................................... 18 第三章 風(fēng)力發(fā)電系統(tǒng)最大風(fēng)能跟蹤控制方法分析 ............................................................ 19 最大風(fēng)能跟蹤的理論基礎(chǔ) ........................................................................................... 19 最大風(fēng)能 跟蹤的算法 ................................................................................................... 19 最佳葉尖速比法 .................................................................................................... 20 功率反饋法 ............................................................................................................ 20 － VII－ 爬山搜索法 ............................................................................................................ 22 本章小結(jié) ....................................................................................................................... 23 第四章 風(fēng)力發(fā)電系統(tǒng)的建模與仿真 .................................................................................... 25 MATLAB/SIMULINK 簡介 .......................................................................................... 25 MATLAB 簡介 ....................................................................................................... 25 SIMULINK 簡介 .................................................................................................... 26 永磁直驅(qū)風(fēng)力發(fā)電系統(tǒng)建模 ................................