Adaptive augmentation of gain-scheduled controller for aerospace vehicles

来源 :Journal of Systems Engineering and Electronics | 被引量 : 0次 | 上传用户:yehyuan
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This paper proposes an adaptive augmentation control design approach of the gain-scheduled controller.This extension is motivated by the need for augmentation of the baseline gainscheduled controller.The proposed approach can be utilized to design flight control systems for advanced aerospace vehicles with a large parameter variation.The flight dynamics within the flight envelope is described by a switched nonlinear system,which is essentially a switched polytopic system with uncertainties.The flight control system consists of a baseline gain-scheduled controller and a model reference adaptive augmentation controller,while the latter can recover the nominal performance of the gainscheduled controlled system under large uncertainties.By the multiple Lyapunov functions method,it is proved that the switched nonlinear system is uniformly ultimately bounded.To validate the effectiveness of the proposed approach,this approach is applied to a generic hypersonic vehicle,and the simulation results show that the system output tracks the command signal well even when large uncertainties exist. This paper proposes an adaptive augmentation control design approach of the gain-scheduled controller. This extension is motivated by the need for augmentation of the baseline gainscheduled controller. The proposed approach can be utilized to design flight control systems for advanced aerospace vehicles with a large parameter variation. The flight dynamics within the flight envelope is described by a switched nonlinear system, which is essentially a switched polytopic system with uncertainties. The flight control system consists of a baseline gain-scheduled controller and a model reference adaptive augmentation controller, while- can recover the nominal performance of the gainscheduled controlled system under large uncertainties. BY the multiple Lyapunov functions method, it is verified that the switched nonlinear system is necessarily ended bounded.To validate the effectiveness of the proposed approach, this approach is applied to a generic hypersonic vehicle, and the simulation resu lts show that the system output tracks the command signal well even when large uncertainties exist.
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