积分滑模控制在飞艇舵面故障中的应用  

Application of integral sliding mode control in airship actuator failure

作　　者：邓永亮[1] 吴梅[1] 王志峰[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710129

出　　处：《飞行力学》2012年第2期151-154,共4页Flight Dynamics

基　　金：航空科学基金资助(20100753007)

摘　　要：针对飞艇运动姿态的小扰动模型,利用极点配置方法设计了积分滑模控制器。对飞艇"×"型舵面出现的故障,给出了期望的特征根,并选择合适的特征向量来构造积分滑模面。给出了一种快速的趋近律形式,并证明了其稳定性。仿真结果表明,与PD控制器相比,积分滑模控制器能使飞艇的运动姿态保持良好。Based on the small perturbation dynamic mathematical model of an airship,an integral sliding mode control scheme is proposed with pole placement method.A group of expected characteristic roots is given to deal with the failure of airship actuator like ＂×＂,then,an integral sliding mode control scheme will be designed by means of choosing suitable characteristic vectors.A fast rate reaching law is discussed and its stability has been proved.Simulation results indicate that the integral sliding mode control improves system performance and stability of airship compared with the PD control.

关 键 词：极点配置 特征向量 积分滑模 舵面故障 

分 类 号：V274[航空宇航科学与技术—飞行器设计] V249