| 一种挠性航天器的对偶四元数姿轨耦合控制方法 |
| |
| 引用本文： | 杨一岱,荆武兴,张召.一种挠性航天器的对偶四元数姿轨耦合控制方法[J].宇航学报,2016,37(8):946-956. |
| |
| 作者姓名： | 杨一岱 荆武兴 张召 |
| |
| 作者单位： | 哈尔滨工业大学航天工程系，哈尔滨150001 |
| |
| 基金项目： | 国家自然科学基金（1172077） |
| |
| 摘 要： | 为解决复杂的挠性航天器的姿轨控制问题，对于挠性航天器的姿轨耦合动力学建模与控制展开研究。基于对偶四元数原理，推导给出一套挠性航天器的姿轨一体化动力学模型。此种模型能够紧凑描述航天器的轨道和姿态，且能够自动引入航天器平动、转动与挠性附件振动三者之间的关联耦合作用。基于此模型设计了一种自适应位置姿态跟踪控制器，该控制器能够在航天器质量特性参数未知的情况下，对其位置和姿态进行轨迹跟踪控制，并使位置和姿态误差收敛。该自适应控制器还可对航天器上挠性附件对系统的耦合作用进行估计，进而在控制输出中对其进行补偿，提高卫星控制系统的稳定性。通过仿真对控制律进行校验，结果表明该控制律对挠性航天器控制效果良好，具有一定的工程应用参考价值。
|
| 关 键 词： | 挠性航天器 对偶四元数 姿态动力学 自适应控制 姿轨耦合控制 |
| 收稿时间： | 2015-11-13 |
A New Method for Orbit and Attitude Coupling Control Problem of Flexible Spacecraft Based on Dual Quaternions |
| |
| YANG Yi dai,JING Wu xing,ZHANG Zhao.A New Method for Orbit and Attitude Coupling Control Problem of Flexible Spacecraft Based on Dual Quaternions[J].Journal of Astronautics,2016,37(8):946-956. |
| |
| Authors: | YANG Yi dai JING Wu xing ZHANG Zhao |
| |
| Affiliation: | Department of Aerospace Engineering, Harbin Institute of Technology, Harbin 150001, China |
| |
| Abstract: | In order to deal with the complicated problem of orbit and attitude control of a flexible spacecraft, a study of dynamic modeling and control of flexible spacecraft is conducted. A new dynamic model which can describe the orbit and attitude dynamics of flexible spacecraft at the same time is proposed, using the method of dual quaternions. The new dynamic model is able to describe the orbit and attitude of the spacecraft integrally, and to consider the coupling effect between the vibration of the flexible parts of the spacecraft and its translation and rotation automatically. An adaptive position and attitude-tracking controller which requires no information of the spacecraft′s inertial parameters is designed based on the model. The coupling effect of the flexible parts can be estimated using the adaptive controller, and thus the stability of the whole system during orbit and attitude maneuver process is improved. The simulation result demonstrates that the adaptive controller fits the problem of orbit and attitude control for flexible spacecraft well and thus is applicable. |
| |
| Keywords: | Flexible spacecraft Dual quaternions Attitude dynamics Adaptive control Orbit and attitude coupling control |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《宇航学报》浏览原始摘要信息 |
|
点击此处可从《宇航学报》下载全文 |
