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| 电动静液作动器非线性框图建模与鲁棒控制方法 | |
| 引用本文： | 康荣杰,焦宗夏,尚耀星,吴帅. 电动静液作动器非线性框图建模与鲁棒控制方法[J]. 航空学报, 2009, 30(3): 518-525 |
| 作者姓名： | 康荣杰 焦宗夏 尚耀星 吴帅 |
| 作者单位： | 北京航空航天大学自动化科学与电气工程学院,北京,100191;国家应用科学学院机械工程系,法国图卢兹,F31077 |
| 摘 要： | 阐述了机载电动静液作动器（EHA）的典型工作原理与结构特点，根据其元部件数学方程，建立非线性精确框图模型，完善了EHA补油回路和摩擦特性的描述。通过对系统阻尼、稳态误差及摩擦的仿真分析，设计了一种结合动态压力反馈与变增益控制策略的状态反馈控制器，改善了系统动、静态性能。鲁棒性测试结果反映了系统参数不确定性对性能的影响。 |
| 关 键 词： | 电动静液作动器 框图模型 仿真 控制 鲁棒性 |
Nonlinear Block Diagram Model and Robust Control of Electro-hydrostatic Actuator |
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| Kang Rongjie,Jiao Zongxia,Jean Charles Mare,Shang Yaoxing,Wu Shuai. Nonlinear Block Diagram Model and Robust Control of Electro-hydrostatic Actuator[J]. Acta Aeronautica et Astronautica Sinica, 2009, 30(3): 518-525 | |
| Authors: | Kang Rongjie Jiao Zongxia Jean Charles Mare Shang Yaoxing Wu Shuai |
| Affiliation: | 1.School of Automation Science and Electrical Engineering;Beijing University of Aeronautics and Astronautics;Beijing 100191;China;2.Department of Mechanical Engineering;Institut National des Sciences Appliquees;Toulouse F31077;France |
| Abstract: | This article describes a typical architecture of electro-hydrostatic actuator(EHA),and establishes its nonlinear accuracy model by block diagram,which contains the refeeding circuit and friction.Based on the simulation analysis of damping,static error and friction,this article utilizes the dynamic pressure feedback and gain variable strategy to design the controller in state space.The robust-test results indicate the influence of parametric uncertainness on system performance. |
| Keywords: | electro-hydrostatic actuator block diagram model simulation control robustness |
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