电液位置伺服系统的设计与仿真分析
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摘要
为满足电液伺服系统用于科研和教学试验要求,设计了一种电液位置伺服系统实验台。阐述了系统的组成结构和工作原理,建立了系统闭环控制传递函数,应用Matlab/Simulink软件建立系统仿真,得到系统伯德图、阶跃响应曲线、输入、输出波形图。仿真结果表明:该系统实现对输出量的位置控制,达到系统精度及稳定性要求,有效解决了电液伺服控制技术在实际生产、应用实施过程中产生的关于实验研究的真空区域问题,有较好的实用价值,该电液位置伺服系统已成功应用于教学科研研究。
In order to meet the test requirements of electro-hydraulic servo system for scientific research and teaching,an electro-hydraulic position servo system test stand is designed. The structure and working principle of the system are elaborated in detail,and the system components and models are determined. Based on electro-hydraulic position servo control principle,the transfer function of the closed-loop control system is established. The system simulation model is established by using Matlab/Simulink software,and the system Bode-diagrams,step response curve and input and output waveforms plots are obtained. The simulation results show that the system achieves the position control of the output,achieves the system accuracy and stability requirements,and effectively solves the vacuum area problem of the experimental research in the process of practical production and application of the electro-hydraulic servo control technology,and has a better practical value. The electro-hydraulic position servo system has been successfully applied to teaching and research.
In order to meet the test requirements of electro-hydraulic servo system for scientific research and teaching,an electro-hydraulic position servo system test stand is designed. The structure and working principle of the system are elaborated in detail,and the system components and models are determined. Based on electro-hydraulic position servo control principle,the transfer function of the closed-loop control system is established. The system simulation model is established by using Matlab/Simulink software,and the system Bode-diagrams,step response curve and input and output waveforms plots are obtained. The simulation results show that the system achieves the position control of the output,achieves the system accuracy and stability requirements,and effectively solves the vacuum area problem of the experimental research in the process of practical production and application of the electro-hydraulic servo control technology,and has a better practical value. The electro-hydraulic position servo system has been successfully applied to teaching and research.
引文
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[13]房剑飞,殷晨波,贾文华,等.液压挖掘机电液伺服系统建模与稳定性分析[J].机床与液压,2017,45(20):70-74.
[14]章家岩,孟庆喜,冯旭刚,等.迭代学习控制策略在连铸结晶器振动系统中的应用[J].振动与冲击,2018,37(17):93-100.
[15]刘毅,王登,林腾翔,等.新型波浪模拟教学实验平台的结构建模分析[J].实验室研究与探索,2016,35(9):91-95.
[16]陈祥光,孙玉梅,吴磊,等.自动控制原理及应用[M].北京:清华大学出版社,2016.
[2]郑凯峰.四轴重型车辆电控液压全轮转向系统研究[D].北京:北京理工大学,2014.
[3]孟涛,刘忠,陈启东,等.机电液综合设计与控制实验的探索[J].实验室研究与探索,2015,34(11):173-175.
[4]韩以伦,姬光青,邱鹏程.液压张紧装置伺服控制系统设计[J].仪表技术与传感器,2016(8):65-70.
[5]吴海荣.“液压与气压传动”课程设计性实验的探索与实践[J].实验室研究与探索,2014,33(11):201-204.
[6]魏延富,高焕文,李洪文.基于电液伺服及反馈系统的拖拉机转向控制研究[J].农机化研究,2006(2):67-69.
[7]马恩,李素敏,高佩川.液压与气压传动[M].北京:清华大学出版社,2013.
[8]周创辉,文桂林,卿启湘.采用电磁换向阀实现的电液位置控制系统研究[J].武汉大学学报(工学版),2017,50(5):760-765.
[9]张红涛,王新晴,梁升,等.电液比例溢流阀在液压加载系统中的应用[J].液压气动与密封,2011,31(9):25-27.
[10]郑宝剑.负值弹性刚度负载作用下电液位置伺服系统的研究[D].武汉:武汉科技大学,2018.
[11]杨征瑞,花克勤,徐佚.电液比例与伺服控制[M].北京:冶金工业出版社,2009.
[12]俞婕,胡大超.连铸结晶器非正弦振动电液伺服系统设计及仿真[J].机械工程与自动化,2009(4):20-22.
[13]房剑飞,殷晨波,贾文华,等.液压挖掘机电液伺服系统建模与稳定性分析[J].机床与液压,2017,45(20):70-74.
[14]章家岩,孟庆喜,冯旭刚,等.迭代学习控制策略在连铸结晶器振动系统中的应用[J].振动与冲击,2018,37(17):93-100.
[15]刘毅,王登,林腾翔,等.新型波浪模拟教学实验平台的结构建模分析[J].实验室研究与探索,2016,35(9):91-95.
[16]陈祥光,孙玉梅,吴磊,等.自动控制原理及应用[M].北京:清华大学出版社,2016.