基于外扰观测器的双通道航天器姿态控制方法

徐利民, 张涛

清华大学学报(自然科学版) ›› 2017, Vol. 57 ›› Issue (6) : 631-636.

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清华大学学报(自然科学版) ›› 2017, Vol. 57 ›› Issue (6) : 631-636. DOI: 10.16511/j.cnki.qhdxxb.2017.26.031
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基于外扰观测器的双通道航天器姿态控制方法

  • 徐利民, 张涛
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Dual channel spacecraft attitude control method based on an external disturbance observer

  • XU Limin, ZHANG Tao
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文章历史 +

摘要

该文提出一种基于外扰状态观测器的航天器姿态控制方法。该方法基于航天器姿态控制模型的线性形式,利用双通道控制原理,分别设计镇定补偿器和伺服补偿器解决恒值调节和随动跟踪问题,通过状态反馈实现极点配置,使系统满足给定的动态和静态指标,同时用外扰状态观测器获取干扰量估计并通过补偿通道对干扰进行抑制和消除。仿真结果表明:该系统具有良好的静态和动态特性,同时具有较强的抗干扰能力和一定的工程应用价值。

Abstract

A dual channel attitude control method was developed for rigid body spacecraft based on a disturbance state observer. A linearized attitude control dynamics and kinematics model of the spacecraft was incorporated into a dual channel control system with a stabilization compensator controller and a servo compensator to adjust the control variables for servo tracking. The system poles are reassigned by state feedback to satisfy the given dynamic and static indicators, while estimated values of the interference obtained by the disturbance state observer are fed back via a compensating channel to the input to suppress disturbances. Simulations confirm that this control method has excellent static and dynamic properties and strong anti-interference ability.

关键词

姿态控制 / 双通道 / 外扰观测器 / 内模原理

Key words

attitude control / dual channel / disturbance observer / internal model principle

引用本文

导出引用
徐利民, 张涛. 基于外扰观测器的双通道航天器姿态控制方法[J]. 清华大学学报(自然科学版). 2017, 57(6): 631-636 https://doi.org/10.16511/j.cnki.qhdxxb.2017.26.031
XU Limin, ZHANG Tao. Dual channel spacecraft attitude control method based on an external disturbance observer[J]. Journal of Tsinghua University(Science and Technology). 2017, 57(6): 631-636 https://doi.org/10.16511/j.cnki.qhdxxb.2017.26.031
中图分类号: V448.2   

参考文献

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