超低空空投参数自适应反步控制  

Ultra-low altitude airdrop controller design based on adaptive parameter estimation backstepping

作　　者：常允刚 孙秀霞[1] 董文瀚[1] 李大东[2] 刘日[1] 

机构地区：[1]空军工程大学航空航天工程学院 [2]中国人民解放军95039部队

出　　处：《飞行力学》2015年第3期218-221,231,共5页Flight Dynamics

基　　金：中国博士后科学基金资助(2014M562629)

摘　　要：为解决超低空空投过程中重型货物舱内移动及出舱阶段给载机的姿态和高度稳定带来威胁这一问题,采用带有参数自适应的反步控制方法设计了飞机纵向控制器。将空投过程中模型的不确定性、强扰动以及控制输入增益转化为待估计参数矩阵,并采用参数自适应更新率对参数矩阵进行估计,结合外环PID高度控制器完成了整个飞控系统的设计。仿真结果验证了控制器的强鲁棒性。During ultra-low altitude airdrop, to solve the problem that the heavy cargo moving inside and sudden dropped out, causing serious threats on the carrier aircraft attitude and height stability, we design a novel controller based on the adaptive parameter estimation backstepping. The unknown parameter ma- trixes, which are formed from the unknown aerodynamic parameters in the airdrop model, are estimated by an adaptive parameter estimation method. By combining the inner loop control with the outer loop PID control for flight-altitude, we developed the entire flight control system. Simulation results are presented which show that the controllers have good robustness to the uncertainty and the nonlinearity.

关 键 词：重装空投 反步控制 参数自适应估计 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]