基于反馈变结构控制电动静液作动器的研究

Study on Sliding Mode Control Based on Feedback for Electro-hydrostatic Actuator

分析了一种新型飞机电动静液作动系统的工作原理,推导了其详细的数学模型。为了克服电动静液作动系统工作时外界大干扰的影响,设计了一种基于线性反馈的滑模变结构控制器,采用数字仿真对系统进行研究,结果表明所设计的控制算法提高了系统的鲁棒性,使系统具有良好的动态特性。

The principle of characteristics of the a new aircraft electro-hydrostatic actuator （ EHA ） system mathematical model was constructed. In order to overcome the huge disturbance when EHA works, a sliding mode controller with linearization feedback was designed. The simulation results show that the sliding mode controller can improve the robust of the system, and verify the perfect dynamic performances.