临近空间飞行器再入段复合控制律设计  

Design of compound control law for near space vehicle reentry

作　　者：潘彦鹏[1] 周军[1] 呼卫军[1] 

机构地区：[1]西北工业大学精确制导与控制研究所,陕西西安710072

出　　处：《系统工程与电子技术》2013年第11期2364-2369,共6页Systems Engineering and Electronics

基　　金：国家自然科学基金(90716020);西北工业大学基础研究基金(JC200929)资助课题

摘　　要：针对临近空间飞行器再入段的异构复合控制问题,提出了适合该类飞行器气动舵和反作用控制系统的复合控制模式及其构型,并设计了相应的异构复合控制律。在此基础上完成了适合高空段的指令型控制器设计和适合中空段的力矩型控制器设计,指令型控制器实现了高空段姿态的快速与平稳响应控制,力矩型控制器实现了中空段姿态的精确跟踪与强干扰抑制控制。仿真表明所提方法的姿态角与舵偏角动态响应平稳,组合拉偏下的跟踪误差小于0.5°,超调小于5%,满足临近空间飞行器姿态复合控制的工程设计要求。To solve the compound control problem for high-dynamic near space vehicles （NSV） with multiple con- trol effectors in the reentry phase, an appropriate compound control mode and its framework are proposed for NSV with both aerodynamic fins and reaction control system. Furthermore, the corresponding heterogeneous compound control law is developed. Accordingly, a command structure controller and a moment structure controller are designed for NSV in high-altitude areas and medium-altitude areas, respectively. Thus, a rapid and smooth control responding is achieved with the command structure controller in high-altitude areas; precise and strong robust attitude control performances are gained with the moment structure controller in medium-altitude areas. The simulation indicates the proposed method can satisfy the demands of NSV＇s attitude compound control in practice, including the attitude angles and rudder deflec- tions smooth and stable, the tracking error below 0.5~ and the overshoot less than 5o//00 under disturbances.

关 键 词：临近空间飞行器 姿态复合控制 变结构控制 反作用控制系统 模糊分配 

分 类 号：V249.121[航空宇航科学与技术—飞行器设计]