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[1]陶佳伟,张涛.考虑输入饱和的挠性航天器姿态容错控制与振动抑制[J].电机与控制学报,2019,23(01):125-132.[doi:10.15938/j.emc.2019.01015]
 TAO Jia-wei,ZHANG Tao.Fault-tolerant attitude control and vibration suppression for flexible spacecraft with input saturation[J].,2019,23(01):125-132.[doi:10.15938/j.emc.2019.01015]
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考虑输入饱和的挠性航天器姿态容错控制与振动抑制
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
23
期数:
2019年01
页码:
125-132
栏目:
出版日期:
2019-01-15

文章信息/Info

Title:
Fault-tolerant attitude control and vibration suppression for flexible spacecraft with input saturation
作者:
 陶佳伟12 张涛1
 ( 1. 清华大学自动化系,北京100084; 2. 北京控制工程研究所空间智能控制技术重点实验室,北京100094)
Author(s):
 TAO Jia-wei12 ZHANG Tao1
 ( 1. Department of Automation,Tsinghua University,Beijing 100084,China;2. Science and Technology on Space Intelligent Control and Laboratory,Beijing 100094,China)
关键词:
挠性航天器 模态观测器 干扰观测器 输入饱和 被动容错控制
Keywords:
  flexible spacecraft modal observer disturbance observer input constraint fault-tolerant
分类号:
V 448. 2
DOI:
10.15938/j.emc.2019.01015
文献标志码:
A
摘要:
针对挠性航天器姿态机动过程中存在模型参数不确定性、外部干扰、执行机构故障、输入饱和及挠性附件振动且挠性模态不易直接测量的问题,从被动容错控制角度出发,提出了一种抗饱和容错控制与振动抑制策略。首先,构造挠性模态观测器对挠性模态变量及其变化率进行观测。然后,将系统不确定、外部扰动、执行器故障和控制器输出超出执行机构饱和部分作为复合干扰,采用二阶非线性干扰观测器对其进行估计并进行有效的补偿。该方案能够实现执行机构饱和约束和失效故障条件下的姿态容错控制,并能抑制挠性结构的振动。利用李雅普诺夫方法严格证明了闭环系统的稳定性,最后通过数值仿真验证了该控制方法的有效性。
Abstract:
 A robust fault-tolerant control scheme was proposed for attitude maneuver and vibration suppression of flexible spacecraft,in which the parametric uncertainty,external disturbances,actuator faults,input saturation and unmeasured elastic vibration were taken into account simultaneously. This controller does not need the knowledge of modal variables. The absence of measurements of these variables was compensated by appropriate dynamics of the controller which supplies their estimates. In addition,a second order nonlinear disturbance observer was employed to estimate the unknown compounded disturbances including system uncertainties,external disturbances,actuator faults and the difference between the ideal and actual control input. Then,based on disturbance observer,a robust fault-tolerant controller was developed to compensate for the saturation constraints on actuators as well as the partial loss of actuator effectiveness and the additive faults. The stability of closed-loop control system is ensured within the framework of Lyapunov theory. Finally,results from a simulation study illustrate the effectiveness of the proposed control scheme.

参考文献/References:

相似文献/References:

[1]刘金琨,王明钊.挠性航天器LMI 抗饱和控制及模态振动抑制[J].电机与控制学报,2014,18(03):79.
 LIU Jin-kun,WANG Ming-zhao.Anti-windup control based on LMI and vibrationsuppression for the flexible spacecraft[J].,2014,18(01):79.
[2]杨婧,侯建文,史小平. 挠性航天器轨控期间姿态容错控制[J].电机与控制学报,2015,19(07):111.[doi:10. 15938/j. emc.2015.07.017]
 YANG Jing,HOU Jian-wen,SHI Xiao-ping. Fault tolerant attitude control of flexible spacecraft during orbit control[J].,2015,19(01):111.[doi:10. 15938/j. emc.2015.07.017]
[3]焦晓红,张立尧.挠性航天器姿态机动和振动抑制的自适应控制[J].电机与控制学报,2011,(07):94.
 JIAO Xiao-hong,ZHANG Li-yao.Adaptive output feedback control of attitude maneuver and vibration suppression for flexible spacecraft[J].,2011,(01):94.
[4]陶佳伟,张涛. 控制受限的挠性航天器姿态机动控制和振动抑制[J].电机与控制学报,2018,22(03):105.[doi:10.15938/j.emc.2018.03.014]
 TAO Jia-wei,ZHANG Tao. Robust adaptive attitude maneuvering and vibration reducingcontrol of flexible spacecraft with input saturation[J].,2018,22(01):105.[doi:10.15938/j.emc.2018.03.014]

备注/Memo

备注/Memo:
 收稿日期: 2017 - 12 - 14
基金项目: 国家自然科学基金( 61673239)
作者简介: 陶佳伟( 1989—) ,男,博士研究生,研究方向为航天器姿态与轨道控制;
张涛( 1969—) ,男,博士,教授,博士生导师,研究方向为非线性控制理论与应用、机器人智能控制等。
通信作者: 张涛
更新日期/Last Update: 2019-03-24