| 引用本文: | 张元文,杨乐平,朱彦伟,等.空间电磁对接的鲁棒协调控制.[J].国防科技大学学报,2011,33(3):33-37.[点击复制] |
| ZHANG Yuanwen,YANG Leping,ZHU Yanwei,et al.Coordinated Robust Control of Space Electromagnetic Docking[J].Journal of National University of Defense Technology,2011,33(3):33-37[点击复制] |
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| 空间电磁对接的鲁棒协调控制 |
| 张元文, 杨乐平, 朱彦伟, 任仙海 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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| 摘要: |
| 空间电磁对接具有不消耗推进剂、连续可逆控制能力和无羽流污染等优点，应用前景广阔。空间电磁对接控制难点在于强非线性、不确定性以及耦合性等问题。为此，论文综合采用线性扩张状态观测器(LESO, Line Extended State Observer)、反馈线性化以及鲁棒H∞控制技术，设计空间电磁对接的鲁棒协调控制，并通过仿真检验所设计控制方案的性能及其鲁棒性。仿真结果表明，所设计的控制器不但可以观测到系统所有状态变量，而且能提高系统对模型不确定性以及外界干扰的鲁棒性，跟踪控制性能良好。 |
| 关键词: 空间电磁对接 鲁棒协调控制 LESO 反馈线性化 鲁棒 H∞控制 鲁棒性 |
| DOI： |
| 投稿日期：2010-07-12 |
| 基金项目: |
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| Coordinated Robust Control of Space Electromagnetic Docking |
| ZHANG Yuanwen, YANG Leping, ZHU Yanwei, REN Xianhai |
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(College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Space electromagnetic docking is characterized by such advantages as no propellant consuming, continuous reversible ability and no plume contaminations, thus ensuring a broad prospect of application. The control difficulties of space electromagnetic docking lie in nonlinearity, uncertainty and coupling, etc. Given these, this paper synthesized LESO, feedback linearization and robust H∞control technology, designed a coordinated robust control and verified the performance and robust ability of the proposed control scheme through simulation. Simulation results show that the proposed control scheme is capable of observing all states, improving the robust ability to model error and external disturbance and performing good tracking control functions. |
| Keywords: space electromagnetic docking robust and coordinated control LESO feedback linearization robust H∞ control robust ability |
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