CAJ | 학술논문

针对高超声速飞行器的纵向运动模型，研究了飞行器输出跟踪控制问题，提出了一种将动态逆方法与高阶终端滑模控制相结合的鲁棒自适应控制方法。首先，利用反馈线性化方法对高超声速飞行器纵向模型输入输出线性化；通过设计具有全局鲁棒性的终端滑模面，提高系统的输出收敛速度；同时，采用自适应高阶滑模控制律，在不确定上界未知条件下对其进行自适应估计，从而实现控制器增益的实时在线调整，减少系统抖振；最后，基于Lyapunov 理论证明了此控制策略可以保证闭环系统稳定。仿真结果表明，所设计的控制器能够实现高超声速飞行器纵向爬升机动中速度和高度的稳定跟踪控制。
침대고초성속비행기적종향운동모형，연구료비행기수출근종공제문제，제출료일충장동태역방법여고계종단활모공제상결합적로봉자괄응공제방법。수선，이용반궤선성화방법대고초성속비행기종향모형수입수출선성화；통과설계구유전국로봉성적종단활모면，제고계통적수출수렴속도；동시，채용자괄응고계활모공제률，재불학정상계미지조건하대기진행자괄응고계，종이실현공제기증익적실시재선조정，감소계통두진；최후，기우Lyapunov 이론증명료차공제책략가이보증폐배계통은정。방진결과표명，소설계적공제기능구실현고초성속비행기종향파승궤동중속도화고도적은정근종공제。
A robust control strategy combining adaptive high order terminal sliding mode with dynamic inversion was designed for the uncertain longitudinal dynamics of hypersonic vehicles about the output tracking problem. The feed-back linearization method was adopted in this paper to linearize the input and output of a hypersonic vehicle longitudi-nal model. Then,the terminal sliding surface which possessed the global robustness was designed to improve the convergence rate of the output vector. Afterwards,the gain of the controller achieved real-time online adjustment by the adaptive high order sliding mode control strategy,through which the chattering was reduced. Finally,the finite-time stability of the closed-loop system was guaranteed based on the Lyapunov theory. Simulation results show that the designed controller is effective in climbing maneuvers of velocity and altitude reference commands respectively.