亚轨道可重复使用运载器再入姿态控制

Re-Entry Flight Attitude Control for Suborbital Reusable Launch Vehicle

研究运载器再入姿态稳定控制问题,亚轨道可重复使用运载器(Suborbital Reusable Launch Vehicle,SRLV)的再入,环境变化剧烈,非线性严重,系统的稳定性受到影响。针对传统控制器在飞行器大空域飞行、系统参数大范围变化时,控制能力欠缺的问题,提出了应用模型参考自适应的控制算法,对系统模型进行自适应控制,设计了SRLV再入返回段的姿态控制器。通过其在Matlab平台上进行仿真,结果表明,改进算法在环境参数剧烈变化和系统具有较强不确定性的情况下,能够对SRLV进行鲁棒、精确的控制,为运载器再入姿态控制提供了参考。

The launch vehicle stable reentry attitude control problems were studied. Suborbital Reusable Launch Vehicle （SRLV） of the reentry, due to the problem of the rapid changes in environment parameters and serious non-linear, often affects the stability of the system. This paper, based on model reference adaptive, designed a SRLV re-entry back section of the attitude controller. The results of simulation with Matlab show that the reference adaptive model can precisely and robustly control the SRLV, when the parameters of environment vary and the system are un-certain.