襟翼机电作动器的非线性跟踪控制器设计  

Nonlinear Tracking Controller Design for Electromechanical Actuator in Flap

作　　者：杨建忠[1] 李玉川[1] 王飞[1] 刁琛[1] 

机构地区：[1]中国民航大学天津市民用航空器适航与维修重点实验室,天津300300

出　　处：《计算机仿真》2015年第5期100-105,共6页Computer Simulation

摘　　要：针对存在未知扰动的民机襟翼机电作动器,为了实现位置跟踪控制,提出了一种新型的非线性连续鲁棒控制器。利用反向递推理论对非线性连续鲁棒控制器进行了设计。首先通过设计电流虚拟控制量,对未知机械扰动进行了补偿;其次,利用电流虚拟控制量,设计了控制电压,实现了对未知扰动信号的抑制。根据李雅普诺夫稳定性分析方法,论证了在所设计的控制器作用下,受控机电作动器能够实现对参考轨迹的全局渐进跟踪。仿真结果表明,改进控制器能够有效提高机电作动器的位置跟踪控制性能,控制效果优于PID控制。A novel nonlinear continuous robust controller was presented to achieve the tracking control of electro- mechanical actuator （EMA） in civil aircraft flap with unknown disturbance. The nonlinear continuous robust control- ler was developed by backstepping method. First, virtual control current was designed to compensate for the unknown mechanical disturbance. Then unknown disturbance signals were restrained by control voltage based on virtual control current. A Lyapunov-based stability analysis was employed to prove that the actuator can achieve a global asymptotic tracking control result with the proposed controller. The simulation results show that the controller can effectively improve the tracking control performance of the electromechanical actuator and has a better position tracking accuracy.

关 键 词：机电作动器 非线性连续鲁棒控制 反向递推法 跟踪控制 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计]