[1]虞文杰,朱志浩,钟晨星,等.充液挠性航天器液体晃动模态观测及滑模姿态控制[J].南京理工大学学报(自然科学版),2019,43(05):640-646.[doi:10.14177/j.cnki.32-1397n.2019.43.05.014]
 Yu Wenjie,Zhu Zhihao,Zhong Chenxing,et al.Sloshing mode observer and sliding mode attitude controlfor liquid-filled flexible spacecraft[J].Journal of Nanjing University of Science and Technology,2019,43(05):640-646.[doi:10.14177/j.cnki.32-1397n.2019.43.05.014]
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充液挠性航天器液体晃动模态观测及滑模姿态控制()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
43卷
期数:
2019年05期
页码:
640-646
栏目:
出版日期:
2019-10-31

文章信息/Info

Title:
Sloshing mode observer and sliding mode attitude controlfor liquid-filled flexible spacecraft
文章编号:
1005-9830(2019)05-0640-07
作者:
虞文杰1朱志浩1钟晨星2王 璐1郭 毓1
1.南京理工大学 自动化学院,江苏 南京 210094; 2.中国电子科技集团公司 第29研究所,四川 成都 610036
Author(s):
Yu Wenjie1Zhu Zhihao1Zhong Chenxing2Wang Lu1Guo Yu1
1.School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China; 2.The 29th Research Institute,China Electronics Technology Group Corporation,Chengdu 610036,China
关键词:
充液挠性航天器 滑模变结构 姿态控制 观测器
Keywords:
liquid-filled flexible spacecrafts sliding mode variable strncture attitude control observers
分类号:
TP273
DOI:
10.14177/j.cnki.32-1397n.2019.43.05.014
摘要:
针对充液挠性航天器姿态机动过程中挠性附件振动和液体晃动等问题,提出了一种带有稳态液体晃动补偿的滑模变结构控制方法。基于Lyapunov稳定性理论,设计了一种改进的滑模变结构姿态控制律,采用平方根函数代替符号函数以减小抖振。考虑到液体晃动频率低阻尼小的特点,为提高姿态稳定控制的性能,设计了一种液体晃动模态观测器,在稳态过程中补偿液体晃动对航天器姿态的影响。仿真结果表明,所提控制方法可有效提高充液挠性航天器姿态的稳态指向精度和稳定度。
Abstract:
Aiming at solving the problems of appendages’ vibration and liquid sloshing during attitude maneuvering of the liquid-filled flexible spacecraft,a sliding mode variable structure control method with steady-state liquid slosh compensation is proposed here. Based on the Lyapunov theory,an improved variable structure attitude control law is designed. To reduce the chattering,the symbol function is replaced by the square root function. Considering the small sloshing frequency and damping ratio of the liquid,in order to improve the performance of attitude stabilization control,a liquid sloshing mode observer is designed to reduce the influence of liquid sloshing in the steady state process. The simulation results show that the proposed control method can effectively improve the steady-state pointing accuracy and the stability of the attitude of the liquid-filled flexible spacecraft.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-10-16 修回日期:2019-03-25
基金项目:国家自然科学基金(61973167; 61773211; 61673214; 61673219); 江苏省重点研发计划项目(BE2017161); 江苏高校优势学科建设工程项目
作者简介:虞文杰(1996-),男,硕士生,主要研究方向:航天器姿态控制,E-mail:645823561@qq.com; 通讯作者:郭毓(1964-),女,博士,教授,博士生导师,主要研究方向:挠性航天器姿态控制、高精度伺服系统、智能机器人控制等,E-mail:guoyu@njust.edu.cn。
引文格式:虞文杰,朱志浩,钟晨星,等. 充液挠性航天器液体晃动模态观测及滑模姿态控制[J]. 南京理工大学学报,2019,43(5):640-646.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2019-11-30