新型指令滤波反步及高超声速飞行器的应用  

Novel Command Filtered Back-stepping Control and Its Application in Hypersonic Vehicle

作　　者：周海亮[1] 郭云霞[1] 王卫[1] 冉勇[1] 高顺[1] 

机构地区：[1]天津市计量监督检测科学研究院,天津300192

出　　处：《控制工程》2015年第1期192-198,共7页Control Engineering of China

基　　金：国家质检总局公益性行业科研专项(201310003);国家质检总局科技计划项目(2014QK186)

摘　　要：非线性严反馈系统的控制中,由于迭代和系统的设计过程,反步法成为研究热点之一。然而,由于需要推导虚拟控制的解析导数,传统反步法存在"计算膨胀"问题,当被控对象的系统阶数较高或模型较复杂时,"计算膨胀"问题更为严重,这限制了反步法在实际工程中的应用。因此,提出一类新型的指令滤波反步法,避免传统反步法中"计算膨胀"问题。该方法采用输入状态稳定性(Input-to-State Stability,ISS)和小增益定理保证闭环系统的稳定性,为严反馈系统的控制器设计提供了简洁有效的方式。针对高超声速飞行器巡航段纵向的速度和高度跟踪问题,综合指令滤波反步法和动态逆方法设计有效的状态反馈控制器,最后在数值仿真中验证了所设计的控制器能实现高超声速飞行器在爬升机动中对速度和高度的稳定跟踪。Controlling non-linear strict-feedback systems adopting back-stepping method is a focused research, due to the iteration and systematic process. However, traditional back-stepping design suffers form the problem of“explosion of complexity”, owing to the analytic derivatives of virtual control. The problem of“explosion of complexity”in back-stepping technology restricts the practical engineering applications, as the object is in a high order or in a complicate mathematical model. In this paper, a novel command filtered back-stepping control is investigated to solve such a problem, which provides a simple and effective way for controlling strict-feedback systems, by combining input-to-state stability with small-gain theorem. A combination of command filtered back-stepping control and dynamic inversion technology is adopted for designing a dynamic state-feedback controller that provides stable tracking of the velocity and altitude reference trajectories for a flexible Hypersonic Flight Vehicle cruise longitudinal model . The proposed methodology is verified in numerical simulations in a climbing maneuver case of separate velocity and altitude reference commands.

关 键 词：指令滤波反步控制 输入状态稳定 小增益定理 高超声速飞行器 跟踪控制 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]