| 引用本文: | 刘祥,李爱军,郭永,王硕,王长青.固定时间收敛的空空导弹直接力/气动力复合控制[J].哈尔滨工业大学学报,2019,51(9):29.DOI:10.11918/j.issn.0367-6234.201708061 |
| LIU Xiang,LI Aijun,GUO Yong,WANG Shuo,WANG Changqing.Fixed-time convergence blended control for air-to-air missile with lateral thrusters and aerodynamic force[J].Journal of Harbin Institute of Technology,2019,51(9):29.DOI:10.11918/j.issn.0367-6234.201708061 |
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| 摘要: |
| 针对带有直接力/气动力复合控制系统的空空导弹控制律设计问题,提出了一种基于固定时间收敛的滑模控制理论和动态控制分配技术的复合控制策略. 首先,根据导弹纵向运动模型设计一种固定时间收敛的滑模控制器,获得建立导弹过载所需要的虚拟控制力矩,并实现过载跟踪误差在指定时间内收敛；其次采用动态控制分配技术将期望控制力矩分别映射到气动力和直接力装置；然后,通过李雅普诺夫理论证明了系统是固定时间收敛的,可以快速收敛到平衡点；最后通过数字仿真验证了所设计复合控制策略的有效性和可实现性. |
| 关键词: 复合控制策略 直接力 固定时间收敛 动态控制分配 滑模控制 |
| DOI：10.11918/j.issn.0367-6234.201708061 |
| 分类号:TJ765.2 |
| 文献标识码:A |
| 基金项目:国家自然科学基金青年科学基金(61803307); 航空科学基金(3,6ZC53019); 中央高校基本科研业务费专项资金 (3102017OQD026) |
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| Fixed-time convergence blended control for air-to-air missile with lateral thrusters and aerodynamic force |
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LIU Xiang1,LI Aijun1,GUO Yong1,WANG Shuo2,WANG Changqing1
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(1. School of Automation, Northwestern Polytechnical University, Xi’an 710129, Shaanxi, China; 2. Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China)
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| Abstract: |
| A control strategy was proposed for air-to-air missile with blended lateral thrusters and aerodynamic control systems based on the fixed-time convergence sliding mode control and the dynamic control allocation. First, a fixed-time convergence sliding mode controller was designed by using the longitudinal dynamic model of the air-to-air missile to obtain the virtual control moments required by the overload of the missile, and the convergence of overload tracking error was realized in a given time. Then, with the dynamic control allocation, the required control moments were mapped into the control commands on the aerodynamic deflector and the lateral thrust engine array respectively. Third, on the basis of the Lyapunov theory, it was proved that the system which could quickly converge to the equilibrium point is fixed-time convergence. Finally, simulations were carried out to demonstrate the effectiveness of the control strategy. |
| Key words: blended control strategy lateral thrust fixed-time convergence dynamic control allocation sliding mode control |
