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基于滑模变结构控制,提出一种MIMO(multiple input multiple output)的飞行重构控制系统的频域设计方法.将滑模变结构控制与飞行重构控制相结合,解决了飞行重构控制技术中故障检测和系统参数辨识的问题.引入渐近观测器和hedge模型增加重构控制系统对衍生未建模动态的鲁棒性;引入作动器模型、输出饱和限制和驾驶员模型,使变结构重构控制系统设计方法变得更为有效和实用;以某型飞机的横航向飞行控制系统为例,进行设计模拟.结果表明:在飞机气动参数大幅突变和操纵面严重受损的情况下,飞机仍能保持良好的性能.
Based on the sliding mode variable structure control, a frequency domain design method of multiple input multiple output (MIMO) flight reconfiguration control system is proposed. By combining sliding mode variable structure control with flight reconfiguration control, the flight reconfiguration control technology In fault detection and system parameter identification.The asymptotic observer and the hedge model are introduced to increase the robustness of the reconfigurable control system to the derivative unmodeled dynamics. The actuator model is introduced, the saturation limit and the driver model are output, The design method of the structural reconfiguration control system becomes more effective and practical. The design and simulation of a certain type of aircraft’s lateral flight control system is carried out. The results show that when the aircraft aerodynamic parameters are suddenly changed and the control surfaces are severely damaged , The aircraft can still maintain good performance.