高超声速飞行器LPV鲁棒变增益控制  

LPV Robust Gain-scheduling Control of Hypersonic Aerocraft

作　　者：郑总准[1] 钟声 马爽 Zheng Zong-zhun;Zhong Sheng;Ma Shuang(Beijing Aerospace Automatic Control Institute,Bejing,100854)

机构地区：[1]北京航天自动控制研究所,北京100854

出　　处：《导弹与航天运载技术》2022年第4期50-55,共6页Missiles and Space Vehicles

摘　　要：针对高超声速飞行器模型的非线性姿态控制问题,提出了一种LPV鲁棒变增益控制方法。对建模误差和测量误差中的可确定信息进一步提取,描述高超声速飞行器内在的非线性和时变特性,建立了参数不确定的LPV系统模型;通过求解线性矩阵不等式的凸优化问题,设计了具有自调节法则的鲁棒变增益控制律,可以有效地抑制不确定性和参数快速变化的影响,并具有良好的动态性能;通过仿真验证了控制律的有效性和鲁棒性。A LPV robust gain-scheduling control strategy for nonlinear attitude control of hypersonic aerocraft is proposed.Firstly,the LPV system model is obtained to describe the nonlinear and time-varying characteristics of hypersonic aerocraft.Furthermore,by extracting the useful information of modeling error and measurement error,the LPV model is able to be more precise.Then,by solving the convex optimization problem for linear matrix inequality,the robust gain-scheduling control is designed.The control law has the ability to autonomously and effectively suppress the influences of the uncertainties and fast varying parameters,as well as the capability of making the closed-loop system have great dynamic response.Finally,the validity and robustness of the controller are shown via simulations.

关 键 词：高超声速飞行器 LPV系统 鲁棒变增益控制 

分 类 号：V44[航空宇航科学与技术—飞行器设计]