| 引用本文: | 孙延超,赵文锐,李传江,李东禹,马广富.固定时间稳定航天器相对轨道悬停控制[J].哈尔滨工业大学学报,2016,48(4):26.DOI:10.11918/j.issn.0367-6234.2016.04.004 |
| SUN Yanchao,ZHAO Wenrui,LI Chuanjiang,LI Dongyu,MA Guangfu.Hovering control for spacecraft in relative orbit based on fixed-time stabilization theory[J].Journal of Harbin Institute of Technology,2016,48(4):26.DOI:10.11918/j.issn.0367-6234.2016.04.004 |
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| 摘要: |
| 针对航天器相对空间目标的定点悬停控制需求，基于非线性反馈固定时间稳定算法设计了一种闭环悬停控制律.阐述了固定时间稳定的原理，以C-W方程为相对运动模型设计了悬停控制律，可以通过改变相关控制参数来消除初始悬停误差和干扰的影响，实现对控制效果的调节.结果分析表明，提出的控制律对初始悬停误差收敛速率较快，能够保持长时间、高精度定点悬停，仿真结果验证了方法的有效性.
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| 关键词: 悬停控制 固定时间稳定 相对轨道 闭环控制 相对轨道控制 |
| DOI：10.11918/j.issn.0367-6234.2016.04.004 |
| 分类号:V448.2 |
| 文献标识码:A |
| 基金项目:国家自然科学基金(5,0);高等学校博士学科点专项科研基金(20102302110031). |
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| Hovering control for spacecraft in relative orbit based on fixed-time stabilization theory |
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SUN Yanchao, ZHAO Wenrui, LI Chuanjiang, LI Dongyu, MA Guangfu
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(School of Astronautics, Harbin Institute of Technology, 150001 Harbin, China)
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| Abstract: |
| Based on fixed-time stabilization theory, a new hovering control strategy for spacecraft in relative orbit is investigated. First, the mathematical description of the fixed-time stabilization theory is introduced. Then, the hovering control law is proposed by utilizing C-W equation. The control effects can be adjusted to desired states in which the spacecraft hovers stably and precisely in finite time by regulating the values of corresponding parameters. Numerical simulation results are provided to validate the performance of the proposed control law.
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| Key words: hovering control fixed-time stabilization relative orbit closed loop control relative orbit control |
