基于输出反馈H_∞控制的跟瞄平台稳定控制研究  

Research on Stabilization Control of Tracking and Pointing Platform Based on Output-Feedback H_∞ Scheme

作　　者：韩鹏娜 刘珊中 李柯 Han Pengna;Liu Shanzhong;Li Ke(School of Information Engineering, Henan University of Science and Technology, Henan 471023, China)

机构地区：[1]河南科技大学信息工程学院,河南471023

出　　处：《航天控制》2018年第2期9-13,共5页Aerospace Control

基　　金：国家自然科学基金(61203047);河南省科技创新杰出人才计划(154200510022);河南省教育厅自然科学研究项目(12A120004)

摘　　要：不考虑光电跟瞄平台环架之间的耦合,建立了外界干扰作用下,环架运动的状态空间模型;基于线性矩阵不等式(LMI)对光电跟瞄平台的方位、俯仰及横滚环,分别设计了输出反馈H_∞稳定控制器。仿真结果表明,该控制器能够实现对光电跟瞄平台的稳定控制,且在模型参数存在摄动和含有多种干扰的情况下,几乎不影响其控制效果,具有良好的鲁棒性及抗干扰能力,满足光电跟瞄平台稳定控制需要。By ignoring the coupling among the three degrees of freedom photoelectric tracking and pointing platform,the motion state space model of the frame under the external disturbance is firstly established.Then,based on linear matrix inequality（ LMI）,the output-feedback H∞ stabilization controller is designed for the azimuth,pitch and roll loops of the photoelectric tracking and pointing platform. The simulation results show that the stability control of the photoelectric tracking and pointing platform can be achieved by the controller. In the case of model parameter perturbation and multiple disturbances,the control effect is almost unaffected. The H∞ controller has good robustness and anti-interference ability,which meets the needs of the stability control of the photoelectric tracking and pointing platform.

关 键 词：光电跟瞄平台 输出反馈H∞控制 鲁棒性 

分 类 号：V271.4[航空宇航科学与技术—飞行器设计] TP273[自动化与计算机技术—检测技术与自动化装置]