CAJ | 학술논문

针对飞行器非线性动力学系统中存在的参数不确定项和由于高速高热造成的未建模动态,基于反演思想和滑模变结构控制方法,设计了一种新的飞行器反演滑模控制器.该方法在反演设计的每一步都采用滑模控制对非匹配不确定项及未知干扰进行补偿,避免了累积误差,实现对制导指令的鲁棒输出跟踪,并证明了跟踪误差收敛于原点附近任意小邻域.仿真结果验证了方法的有效性.
침대비행기비선성동역학계통중존재적삼수불학정항화유우고속고열조성적미건모동태,기우반연사상화활모변결구공제방법,설계료일충신적비행기반연활모공제기.해방법재반연설계적매일보도채용활모공제대비필배불학정항급미지간우진행보상,피면료루적오차,실현대제도지령적로봉수출근종,병증명료근종오차수렴우원점부근임의소린역.방진결과험증료방법적유효성.
Aiming at the parameter uncertain term in vehicle nonlinear dynamics system and the unmodeled dynamics due to high Mach number and high temperature, a new backstepping sliding mode controller is designed in this article based on backstepping design method and the variable structure control scheme. Sliding mode control is adopted in every step of the backstepping design to compensate for non-matched uncertainties and unknown disturbance. This approach prevents cumulative error and realizes robust output tracking to guide commands. Tracking error is proved to converge at an arbitrarily small area near the origin. Effectiveness of this method is demonstrated by the simulation results.