Research of flight control methods is a crucial technology in aviation industry all the time. The existing flight control methods only adapt for relatively structured tasks and relatively slow-varying environment. However, since autonomous flight design in dynamic and uncertain environment hasn't been realized, there is still a long distance to go. Methods of active disturbance rejection control, robust control, backstepping control are adopted and a set of flight solution scheme is designed from adaptive, robust and redundancy perspective. The main contributions of this thesis include the following issues: (1)Focusing on severe nonlinear, coupled and time-varying plane model in large flight envelope, a simplified active disturbance rejection controller(ADRC) is designed, which is robust by introducing neural network compensation to the extended state observer of ADRC in order to enhance the ability of turbulence alleviation. Compared with traditional gain scheduling strategy, the method proposed reduces numbers of scheduling and promotes the system robustness. (2)In order to track attitude command accurately, a new hybrid controller design scheme is proposed, which consists of a backstepping controller and an adaptive neural network compensator. The scheme proposed can adapt the uncertainty of plane and environment and has ability of adaptively changing parameters. (3)The uncertainty of aircraft model far exceeds the ability of adaptive control under extreme flight environment. In order to enhance the ability of resisting uncertainty, a new hybrid controller design scheme is presented, which consists of a feedback linearization controller and a μ controller. (4)The task of coordinated turn is realized by presenting a hybrid nonlinear control strategy, which is composed of an ADRC and a backstepping controller. The ADRC of keeping flight path angle is adopted to hold altitude in longitudinal channel. The backstepping controller is designed to keeping roll angle. (5)A new scheme of analytical redundance flight control system (FCS) is proposed, which is composed of analytical redundance, core backstepping flight control algorithm and extended state observer compensator. The analytical redundancy for attitude angle rates adopts reduced order nonlinear state observer method. The backstepping flight controller realizes linearization and decoupling of the highly nonlinear and tightly coupled plane model. The extended state observer compensator is d...
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