基于ESO的高超声速飞行器解耦控制  

Decoupling Control of Hypersonic Vehicle Based on ESO

作　　者：杜立夫[1] 李冬 张瑞[1] 闵勇[1] DU Lifu;LI Dong;ZHANG Rui;MIN Yong(Beijing Aerospace Automatic Control Institute,Beijing 100854)

机构地区：[1]北京航天自动控制研究所,北京100854

出　　处：《飞控与探测》2021年第5期21-26,共6页Flight Control & Detection

摘　　要：针对高超声速飞行器三通道具有强耦合的问题,提出了一种基于扩张状态观测器的全通道解耦控制方法。该方法不需要根据耦合项的特点设计耦合补偿模型,而是通过设计扩张状态观测器,将高超声速飞行器的耦合项视为扰动,利用扩张状态观测器具有的实时跟踪估计扰动的能力,对耦合项扰动进行估计。通过补偿控制消除耦合的影响,从而完成解耦控制。进一步,通过LQR控制方法完成姿态控制系统的闭环反馈控制律设计,最终实现一种工程上实用的高超声速飞行器解耦控制方法,并通过数学仿真验证了该控制方法的正确性和有效性。The three channels of hypersonic vehicle have the problem of strong coupling,and the whole channel control method based on an extended state observer is proposed.This method does not need to design the coupling compensation model according to the coupling characteristics.After the extended state observer is designed,the coupling is regard as a disturbance,and the coupling disturbance is estimated by using the ability of the extended state observer to track and estimate the disturbance in real time.The coupling effect is eliminated by decoupling compensation control.Further,the closed-loop feedback control law design of the attitude control system is completed through the LQR control method.Finally,a practical decoupling control method for a hypersonic vehicle is realized,and the correctness and effectiveness of the control method are verified by mathematical simulation.

关 键 词：高超声速飞行器 姿态控制 扩张状态观测器 解耦控制 LQR控制 

分 类 号：TJ765.2[兵器科学与技术—武器系统与运用工程]