基于自抗扰控制器的飞机纵向自修复飞行仿真

Self-repairing Flight Simulation of Aircraft Pitch Movement Based on Auto Disturbances Rejection Controller

自修复飞行控制是先进飞行控制系统的重要研究内容,它可以提高飞机的可靠性和生存能力。针对含有推力矢量的非线性飞机模型,提出了利用自抗扰控制技术实现其俯仰运动自修复飞行控制的新方法。在平尾损伤率0～100%的情况下,该方法无需故障模型,利用自抗扰控制器的特性,加入推力矢量参与舵面重构控制,仿真结果表明:自抗扰控制器实现了对俯仰角的自修复控制,能保持飞机的闭环稳定性,且具有良好的动态性能;推力矢量的使用增强了飞控系统的自修复能力。

The self-repairing flight control is one of the most important parts in advanced flight control system, and it can improve the reliability and viability of the plane. To the nonlinear model of the aircraft with thrust vector, using auto- disturbances-rejection-controller （ADRC） for aircraft pitch movement in self-repairing flight control system was proposed While the elevator was damaged from 0 - 100%, dispensing with the damaged model of the plane, using the characteristic of ADRC, joining the thrust vector in the configuration, the simulation results show that ADRC can achieve the self-repairing control of the pitch angle, and can keep close loop stability of the aircraft, and can have good dynamic performance; and show that the use of thrust vector can improve the self-repairing ability of the flying control system.