基于扩张状态观测器的再入弹头控制系统设计  

Design of Reentry Warhead Controller System Based on Extended State Observer

作　　者：徐珂文[1] 高晓冬[2] 赵红超[1] 王洁[1] 

机构地区：[1]海军航空工程学院七系,山东烟台264001 [2]海军装备部兵器部,北京100841

出　　处：《海军航空工程学院学报》2014年第5期401-404,共4页Journal of Naval Aeronautical and Astronautical University

基　　金：国家自然科学基金项目资助(61174031)

摘　　要：为了提高非自旋再入弹头的变质心控制系统的鲁棒性,采用滑模控制方法设计了变质心控制系统中的控制器。为了使控制系统设计简单,将弹头俯仰通道和偏航通道之间的耦合作用以及外界干扰综合为汇总不确定量,并采用扩张状态观测器进行估计和补偿。扩张状态观测器引入到滑模控制器中,从而发展了一种基于扩张状态观测器的滑模控制器。对弹头的变质心控制系统进行了仿真分析,仿真结果表明,所设计的控制器能够有效地补偿汇总不确定量的影响,使控制系统输出快速而准确地跟踪上指令信号。In order to improve robustness of variable centroid control system of nonspinning reentry warhead, the slidingmode control technique was adopted to design the controller in variable centroid control system. In order to simplify thecontrol system design, the coupled effect between pitch channel and yaw channel of a warhead and external disturbancewas integrated as lumped uncertainty, which was estimated and compensated by an extended state observer（ESO）. ESOwas introduced into sliding mode controller, thus a kind of ESO-based sliding mode controller was developed. A simula-tion is performed to analyze the warhead＇s variable centroid control system. Simulation results showed that the designedcontroller could effectively compensate the effect of lumped uncertainty and make control system outputs to track theircommand signals speedily and accurately.

关 键 词：再入弹头 变质心控制系统 滑模控制 扩张状态观测器 

分 类 号：V249.122[航空宇航科学与技术—飞行器设计]