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现代飞行器包线范围不断扩大,飞行器模型参数在飞行包线内呈现大范围变化的特点.针对包线范围参数时变飞行器的稳定性分析与输出反馈镇定问题,提出了基于切换多胞系统的飞行器模型描述方法.结合切换多胞Lyapunov函数与平均驻留时间方法,给出了保证飞行器包线范围渐近稳定的稳定性判据与静态输出反馈形式的变增益镇定控制器综合方法.将所提方法应用于高机动性飞行器的全包线飞行控制器设计,仿真结果表明:该设计方法可放宽对飞行器工作点的平均驻留时间约束,具备较低的设计保守性;所得变增益控制器可消除传统切换控制器的输出跳变现象,具有良好的瞬态响应特性.
The range of modern aircraft envelope is expanding and the parameters of the aircraft model exhibit a wide range of changes in the flight envelope.Aiming at the stability analysis and output feedback stabilization of time-varying aircraft with envelope range parameters, an aircraft based on switching multicellular system Model description method is proposed in this paper.Combined with switching Lyapunov function and mean dwell time method, a synthesis method of variable gain stabilization controller is proposed to guarantee the asymptotic stability of aircraft envelope and the static output feedback. The method is applied to the design of all-envelope flight controllers for high-maneuvering vehicles. The simulation results show that this design method can relax the average dwell time constraints on the operating points of the aircraft and have a low design conservativeness. The resulting gain- Elimination of the traditional switching controller output jump phenomenon, has a good transient response characteristics.