本文選題：變槳傳動系統(tǒng) + 載荷計算及處理技術(shù)��； 參考：《大連理工大學》2015年碩士論文

【摘要】：隨著風力發(fā)電機組向大型化、大葉輪直徑、低風速風資源地區(qū)發(fā)展,風力發(fā)電機組對風力發(fā)電機組變槳系統(tǒng)可靠性的要求也隨之越來越高,進而對風力發(fā)電機組變槳傳動系統(tǒng)在技術(shù)設(shè)計方面的要求也更加精益求精。變槳軸承、變槳驅(qū)動齒輪箱、變槳伺服電機以及連接驅(qū)動和軸承間傳動的開式齒輪是變槳傳動系統(tǒng)的重要零部件,這些零部件是否能滿足風力發(fā)電機組20年使用壽命,是否能滿足50年一遇極端陣風,是否能在設(shè)計載荷條件下滿足風力發(fā)電機組葉片的驅(qū)動,從而能否保證風力發(fā)電機組的功率調(diào)節(jié)和氣動剎車,以上這些對整個風力發(fā)電機組能否安全運行是十分必要。近些年,大兆瓦級風力發(fā)電機組變槳系統(tǒng)設(shè)計過程中存在許多現(xiàn)實工程的問題,針對此類問題,為提高風力發(fā)電機組變槳傳動系統(tǒng)可靠性,本文以2MW變槳傳動系統(tǒng)設(shè)計為研究對象,改變傳統(tǒng)對于齒輪承載能力計算的簡單工程算法和方法,優(yōu)化設(shè)計應用一種能夠滿足GL導則設(shè)計認證要求的載荷分析處理方法、開式齒輪承載能力計算方法。首先,建立系統(tǒng)可靠度評估模型,對齒輪傳動系統(tǒng)進行了體積優(yōu)化設(shè)計,提出一種風力發(fā)電機組變槳系統(tǒng)葉片根部載荷處理方法,將復雜、隨機的疲勞載荷分布(LDD)處理成為可以直接用于設(shè)計計算的當量載荷,為整個傳動系統(tǒng)的設(shè)計計算以及各個零部件的校核提供理論依據(jù)；其次,基于宏觀參數(shù)優(yōu)化結(jié)果對齒輪進行承載性能研究；接著,以選定的軸承和開齒系統(tǒng)設(shè)計參數(shù)作為輸入條件,設(shè)計了軸承和軸承內(nèi)圈的開式齒輪傳動副。最后,根據(jù)設(shè)計結(jié)果,參考GL導則,進一步評估風力發(fā)電機組變槳系統(tǒng)的設(shè)計安全要求對變槳傳動系統(tǒng)可靠性的支撐作用。為大功率風電機組開發(fā)提供了新的設(shè)計思路、方法和技術(shù)手段參考。
[Abstract]:With the development of wind turbine in large scale, large impeller diameter and low wind speed, the demand of wind turbine on the reliability of wind turbine propeller system becomes higher and higher. Furthermore, the technical design requirements of the variable propeller drive system of wind turbine are also improved. Variable propeller bearings, variable propeller drive gearboxes, variable propeller servo motors, and open gears connected to drive and interbearing drive are important parts of the variable propeller drive system. Can these parts meet the 20 years service life of wind turbines? Whether it can meet the extreme gust in 50 years, whether it can satisfy the blade drive of wind turbine under the condition of design load, so as to ensure the power regulation and pneumatic brake of wind turbine, It is necessary for the whole wind turbine to run safely. In recent years, there are many practical engineering problems in the design of large megawatt wind turbine variable propeller system. In order to improve the reliability of variable propeller transmission system of wind turbine, This paper takes the design of 2MW variable propeller transmission system as the research object, changes the traditional simple engineering algorithm and method for the calculation of gear bearing capacity, and optimizes the design and application of a load analysis and processing method that can meet the requirements of GL guide design certification. Calculation method of load capacity of open gear. First of all, the reliability evaluation model of the system is established, and the volume optimization design of the gear transmission system is carried out, and a method to deal with the load at the blade root of the variable propeller system of the wind turbine is proposed, which will be complicated. The random fatigue load distribution (LDD) treatment becomes the equivalent load that can be directly used for design and calculation, which provides the theoretical basis for the design and calculation of the whole transmission system and the verification of each component. Secondly, Based on the results of macroscopic parameter optimization, the bearing performance of gear is studied. Then, the open gear transmission pair of bearing and bearing inner ring is designed with the selected design parameters of bearing and open gear system as input conditions. Finally, according to the design results and referring to the GL guidelines, the supporting role of the design safety requirements of the variable propeller system for the reliability of the variable propeller drive system of the wind turbine is further evaluated. It provides a new design idea, method and technical reference for the development of high power wind turbine.
【學位授予單位】：大連理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TM315

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相關(guān)期刊論文 前2條

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本文編號：1815864