本文選題：電液伺服　切入點：位置控制　出處：《浙江大學》2012年碩士論文

【摘要】：隨著現(xiàn)代工業(yè)發(fā)展對機械的控制性能的要求越來越高,電液伺服技術以其響應快、精度高、體積小、輸出力大等特點廣泛應用于國防和工業(yè)的諸多領域,如航空航天、有色冶煉、水利水電、石油化工、機械制造等。電液伺服位置控制系統(tǒng)是最基本的、最典型的一種電液伺服控制系統(tǒng),并得到廣泛的應用,具有重大的工程實用價值和理論研究意義。 本論文針對電液伺服四通閥控對稱缸及電液伺服三通閥控非對稱缸位置伺服系統(tǒng),進行了非線性與線性建模,分別通過實例進行仿真,并對兩種理論的仿真結果進行對比,探討它們的適用范圍；研制了基于四通電液伺服閥的蝶閥的驅動控制系統(tǒng),并進行了理論分析和動靜態(tài)試驗,結果表明蝶閥的控制精度及自動化程度得到提高,已在鋼廠熱軋線上應用；對基于三通電液伺服閥的風機防喘閥控制系統(tǒng)進行了理論分析和動靜態(tài)試驗,探討了系統(tǒng)各結構參數(shù)對其響應特性的影響。 有關各章節(jié)內容分述如下： 第1章,在綜合分析國內外文獻的基礎上,介紹了電液伺服技術和位置控制系統(tǒng)的發(fā)展。介紹了典型的電液伺服閥和電液伺服位置控制系統(tǒng)。以電液伺服蝶閥驅動控制為典型應用,介紹了蝶閥的基本概況及其驅動裝置的研究現(xiàn)狀。以電液伺服風機防喘閥控制為典型應用,介紹了透平鼓風機的概況和風機喘振現(xiàn)象及防喘振的方法。最后,概括了本課題的研究意義及研究內容。 第2章,針對電液伺服四通閥控對稱液壓缸與電液伺服三通閥控非對稱液壓缸位置伺服系統(tǒng),分別建立了系統(tǒng)的非線性與線性模型,并進行了仿真分析,探討了他們的適用范圍。 第3章,設計了基于四通電液伺服閥的蝶閥的驅動控制系統(tǒng),介紹了該系統(tǒng)的結構與工作原理；建立了系統(tǒng)的非線性模型；運用AMESim軟件對非線性仿真模型進行分析,討論了各結構參數(shù)對系統(tǒng)產生動態(tài)特性的影響；最后,對基于四通電液伺服閥的蝶閥的驅動控制系統(tǒng)進行了動靜態(tài)試驗。 第4章,分析了基于三通電液伺服閥的風機防喘閥控制系統(tǒng),介紹了三通電液伺服閥及其位置控制系統(tǒng)的結構與工作原理；建立了系統(tǒng)的非線性模型；運用AMESim軟件對非線性仿真模型進行分析,討論了各結構參數(shù)對系統(tǒng)產生動態(tài)特性的影響；最后,對基于三通電液伺服閥的風機防喘閥控制系統(tǒng)進行了動靜態(tài)試驗。 第5章,對主要研究工作和得到的成果進行了概括,并展望了下一步的研究工作和方向。
[Abstract]:With the development of modern industry, the requirement of mechanical control performance is becoming higher and higher. Electro-hydraulic servo technology is widely used in many fields of national defense and industry, such as aerospace, because of its characteristics of fast response, high precision, small volume, large output force and so on. Non-ferrous smelting, water conservancy and hydropower, petrochemical, mechanical manufacturing, etc. Electro-hydraulic servo position control system is the most basic and typical electro-hydraulic servo control system, and has been widely used. It has great practical engineering value and theoretical significance. In this paper, the nonlinear and linear modeling of the electro-hydraulic servo four-way valve controlled symmetrical cylinder and the electro-hydraulic three-way valve controlled asymmetric cylinder position servo system are carried out, and the simulation results of the two theories are compared. The driving control system of butterfly valve based on four-way electro-hydraulic servo valve is developed, and the theoretical analysis and dynamic and static test are carried out. The results show that the control precision and automation degree of butterfly valve are improved. It has been applied in hot rolling line of steel plant, the control system of blower anti-surge valve based on three-way electro-hydraulic servo valve is theoretically analyzed and dynamic and static test is carried out, and the influence of system structure parameters on its response characteristic is discussed. The relevant chapters are broken down as follows:. Chapter 1, on the basis of comprehensive analysis of domestic and foreign literature, The development of electro-hydraulic servo technology and position control system is introduced. The typical electro-hydraulic servo valve and electro-hydraulic servo position control system are introduced. This paper introduces the basic situation of butterfly valve and the research status of driving device. Taking the control of anti-surge valve of electro-hydraulic servo fan as a typical application, the general situation of turbine blower, the phenomenon of blower surge and the method of preventing surge are introduced. The significance and content of the research are summarized. In chapter 2, the nonlinear and linear models are established for the electro-hydraulic servo four-way valve controlled symmetrical hydraulic cylinder and the electro-hydraulic servo three-way valve controlled asymmetric hydraulic cylinder position servo system, and the simulation analysis is carried out. The scope of their application is discussed. In chapter 3, the drive and control system of butterfly valve based on four-way electro-hydraulic servo valve is designed, the structure and working principle of the system are introduced, the nonlinear model of the system is established, and the nonlinear simulation model is analyzed by using AMESim software. The influence of the structure parameters on the dynamic characteristics of the system is discussed. Finally, the dynamic and static test of the butterfly valve drive control system based on the four-way electro-hydraulic servo valve is carried out. In chapter 4, the control system of blower anti-surge valve based on three-way electro-hydraulic servo valve is analyzed, the structure and working principle of three-way electro-hydraulic servo valve and its position control system are introduced, and the nonlinear model of the system is established. The nonlinear simulation model is analyzed by using AMESim software, and the influence of structural parameters on the dynamic characteristics of the system is discussed. Finally, the dynamic and static test of the control system of the blower anti-surge valve based on the three-way electro-hydraulic servo valve is carried out. In chapter 5, the main research work and the results obtained are summarized, and the further research work and direction are prospected.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2012
【分類號】：TH137

【引證文獻】

相關碩士學位論文 前1條

1 李春;基于模糊自整定PID算法的精鍛機夾頭控制研究[D];太原科技大學;2013年

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本文編號：1671205