Active-Disturbances-Rejection-Controller design of super-maneuverable flight based on dynamic inversion

Zhiguo Xiong, Xiu-xia Sun, Mengquan Hu, Dong Wang
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Abstract

By means of active-disturbances-rejection-controller (ADRC) based on compensation of dynamic inversion, a new scheme is proposed to design super-maneuverable flight controller. Firstly, the natural dynamics of aircraft is cancelled out to some extent by using known information of flight model, and then by applying ADRC in the fast and slow variables system to compensate model disturbances and uncertainty, the scheme realizes dynamic decoupling control of fast and slow state variables. Not needing accurate model of controlled object, ADRC is designed directly based on high degree of nonlinearity and uncertainty of aircraft under high-angle-of-attack flight, 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-angle-of-attack maneuver in big flight envelope show that 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
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基于动态反演的超机动飞行自抗扰控制器设计
采用基于动态逆补偿的自抗扰控制器(ADRC),提出了一种设计超机动飞行控制器的新方案。该方案首先利用飞行模型的已知信息对飞机的自然动力学进行一定程度的抵消,然后在快、慢变量系统中应用自抗扰控制器补偿模型扰动和不确定性,实现快、慢状态变量的动态解耦控制。该方案不需要精确的被控对象模型,直接针对飞机在大迎角飞行下的高度非线性和不确定性进行设计,且不改变大飞行包线范围内控制器的结构和参数,可以简化飞控系统的设计。大包线大攻角机动仿真结果表明,闭环系统具有较高的动态性能和鲁棒性。采用自抗扰控制器的设计为解决超机动飞行控制问题提供了一种新的方法
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