洪辉.飞机电静液作动器滑模 PID控制器设计[J].民用飞机设计与研究,2018,(4):42-
飞机电静液作动器滑模 PID控制器设计
Sliding Mode PID Control for Aircraft Electro Hydrostatic Actuator
  
DOI:10.19416/j.cnki.1674-9804.2018.04.007
中文关键词:电静液作动器  多电飞机  滑模控制  PID控制
英文关键词:electro hydrostatic actuator  more electric aircraft  sliding mode control  PID control
基金项目:
作者单位
洪辉 同济大学上海 201800 
中文摘要:在多电飞机应用环境中,由于电静液作动器(Electro Hydrostatic Actuator,以下简称EHA)系统本身的强非线性与承载交变动载荷的不确定性,简单PID控制无法达到理想控制效果。提出了滑模 PID复合控制,电机电流环和转速环构成控制系统内环,以PI控制器实现电机调速;作动筒位置环为外环,以滑模控制提升系统的快速性和鲁棒性。建立了EHA数学模型,并设计了滑模控制器结构。仿真结果表明,滑模 PID复合控制方法能有效地消除超调和减小跟随误差,实现对EHA位置的精确控制。
英文摘要:In the application environment of more electric aircraft, simple PID control cannot achieve the ideal control requirements because of the strong nonlinearity of Electro Hydrostatic Actuator (EHA) system and uncertainty of external variable load. This paper provides a sliding mode PID control system, in which the motor current loop and speed loop form the inner loop of the control system, and PI controller is used to control motor speed; the actuator cylinder position loop is the outer loop, sliding mode control is used to improve rapidity and robustness. EHA mathematical model is established, and sliding mode controller structure is designed. The simulation results show that the sliding mode PID control can eliminate the overshoot, reduce the tracking error and achieve the precise control of EHA position.
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