超机动飞行自抗扰控制律设计与仿真

提出了一种利用自抗扰控制器算法设计超机动飞行控制系统的新方法。根据自抗扰控制器可以动态补偿系统模型扰动和外扰的特点,在超机动飞行快回路和慢回路中引入自抗扰控制器,实现了快变量和慢变量的动态解耦控制。直接针对飞机超机动飞行条件下的强耦合、强非线性模型进行控制律设计,符合超机动飞行控制的非线性、模型摄动大、模型不精确等特点,在很大的包线范围内不需要改变控制器的结构和参数,简化了设计过程。大包线范围内的大迎角机动仿真结果表明,系统具有良好的动态和稳态性能,控制器具有很强的鲁棒性,为解决超机动飞行控制问题提供了一种新的途径。

Active Disturbances Rejection Control Law Design of Aircraft Super-Maneuverable Flight and Simulations

Using active-disturbances-rejection-controller(ADRC),a new scheme was proposed to design aircraft super-maneuverable flight controller.The new scheme realized the decoupling control of fast and slow state variables by applying ADRC in the fast and slow variables system to compensate model disturbances and uncertainty.Based on the nonlinear model of aircraft and not caring whether the model being quite accurate,ADRC is specially fit for super-maneuverable flight control design that has to deal with nonlinear and inaccurate model.Furthermore,without changing the structure and parameters of controller in big flight envelope,the scheme can simplify the design of flight control system.The simulation results of high attack angle maneuver in big flight envelope show that the close loop system achieves high dynamic performance and robustness performance.The design using ADRC brings a new method to solve the problem of super-maneuverable flight control.