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Volume 35 Issue 3
Mar.  2009
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Journal of Beijing University of Aeronautics and Astronautics  > 2009  >  35(3): 338-341.
Kang Rongjie, Jiao Zongxia, Wang Shaopinget al. Block diagram modeling and control of electro-hydrostatic actuator[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(3): 338-341. (in Chinese)
Citation: Kang Rongjie, Jiao Zongxia, Wang Shaopinget al. Block diagram modeling and control of electro-hydrostatic actuator[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(3): 338-341. (in Chinese)
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Block diagram modeling and control of electro-hydrostatic actuator

  • School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 14 May 2008
  • Publish Date: 31 Mar 2009
    Abstract
  • Power-by-wire (PBW) actuation is the future direction of flight control system in which the need for a central hydraulic system is eliminated. The electro-hydrostatic actuator (EHA) is a kind of PBW actuator that converts the electrical power into local hydraulic power and combines the benefits of the conventional hydraulic system and the direct drive electrical actuators. Based on the mathematic equations, all the EHA components were modeled by the block diagrams and assembled to a fixed-displacement variable-speed architecture, which contained the refeeding circuit and the friction. Furthermore, the single proportion integration differentiation (PID) controller, cascade PID controller and state feedback controller are designed for comparison analysis that focused on the system stability, stiffness and dynamic characteristics. The simulation results prove that the state feedback controller along with dynamic pressure feedback strategy efficiently improves the static and dynamic performance of EHA.

     

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    • References(1)
  • [1] Gao Bo, Fu Yongling, Pei Zhongcai, et al. Research on dual-variable integrated electro-hydrostatic actuator[J]. Chinese Journal of Aeronautics,2006,19(1):77-82 [2] 马纪明, 付永领, 李军,等. 一体化电动静液作动器(EHA)的设计与仿真分析[J]. 航空学报,2005,26(1):79-83 Ma Jiming, Fu Yongling, Li Jun, et al. Design, simulation and analysis of integrated electrical hydrostatic actuator [J]. Acta Aeronautica et Astronautica Sinica,2005,26(1):79-83 (in Chinese) [3] Habibi S,Goldenberg A. Design of a new high performance electro-hydraulic actuator Proceedings of the IEEE/ASME International Conference on Advanced Intelligent Mechatronics. Atlanta:Pergamon, 1999:227-232 [4] 王占林. 近代液压伺服控制[M]. 北京: 北京航空航天大学出版社,2005:16-20 Wang Zhanlin. Modern electrical and hydraulic servo control[M]. Beijing: Beijing University of Aeronautics and Astronautics Press,2005:16-20(in Chinese) [5] 王晓东,华清,焦宗夏,等. 负载模拟器中的摩擦力及其补偿控制[J].中国机械工程,2003,14(6):67-70 Wang Xiaodong, Hua Qing, Jiao Zongxia, et al. Friction and its compensation method in load simulator[J]. China Mechanical Engineering,2003,14(6):67-70(in Chinese) [6] Papadopoulos E G,Chasparis G C. Analysis and model-based control of servomechanisms with friction Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems. Lausanne, Switzerland:Springer-Verlag,2002:2109-2114
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