基于ESO的可重复使用飞行器积分滑模控制器设计

发布时间：2018-04-10 16:12

本文选题：可重复使用飞行器 + 积分滑模　；参考：《空间控制技术与应用》2016年01期

【摘要】：考虑参数不确定和外界干扰对姿态控制的影响,开展基于扩张状态观测器(ESO,extended states observet)的可重复使用飞行器姿态控制研究.首先,对飞行器运动模型进行描述,在合理假设条件下,得到面向控制器设计的纵向和横侧向姿态模型;其次,分别针对纵向和横侧向姿态模型设计积分滑模控制器(ISMC,integral sliding mode control);然后,引入ESO对耦合作用、参数不确定及外界干扰进行估计,并在控制器中进行补偿;最后,六自由度仿真结果表明,本研究给出的控制策略能够实现对给定制导指令的稳定跟踪,确保安全再入飞行.
[Abstract]:Considering the influence of parameter uncertainty and external disturbance on attitude control, the attitude control of reusable aircraft based on extended state observer (ESO extended states observer) is studied.Firstly, the motion model of the aircraft is described, and the controller oriented longitudinal and lateral attitude models are obtained under reasonable assumptions.The integrated sliding mode controller is designed for longitudinal and lateral attitude models respectively. Then, ESO is introduced to estimate the coupling effect, parameter uncertainty and external disturbance, and compensation is made in the controller.The simulation results of six degrees of freedom show that the proposed control strategy can track the given guidance instructions stably and ensure the safe re-entry flight.
【作者单位】：北京控制工程研究所;空间智能控制技术重点实验室;北京卫星环境工程研究所;
【基金】：国家自然科学基金资助项目(61403030)
【分类号】：V448.2

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