BTT导弹滚转通道无抖振滑模控制研究

Chattering Free Sliding Mode Control for Roll Channel of BTT Missile

提出了一种基于舵机动态特性的BBT导弹滚转通道无抖振滑模控制方法。考虑到舵机的动态特性具有滤波性能,采用二阶终端滑模控制策略设计了舵机控制指令,利用舵机的滤波特性得到连续的实际控制,并在设计过程中充分考虑了导弹气动参数和舵机模型的不确定性。仿真结果表明,本方法明显消除了控制信号的抖振,并具有良好的鲁棒性。

Based on dynamic characters of rudders, a new approach was proposed for design of chattering free sliding mode conttoller for roll channel in BBT missile. In consideration of filtering effect of rudder dynamics, control commands were designed under second-order terminal sliding mode control schemes, and continuous actual controls were obtained utilizing the filtering effect. Wherein, uncertainty of aerodynamic coefficients and the rudder model were sufficiently regarded. Simulation results show that the control law notably eliminates control signal chattering and is robust for uncertainty.