基于纯磁控的皮卫星姿态恢复

doi:10.3785/j.issn.1008-973X.2013.05.016

2013, Vol. 47

Issue (5): 843-852 DOI: 10.3785/j.issn.1008-973X.2013.05.016

电气工程、电信技术

基于纯磁控的皮卫星姿态恢复

向甜,王昊,蒙涛,韩柯,金仲和

浙江大学信息与电子工程学系,浙江杭州,310027

Attitude recovery of pico-satellites based on fully magnetic coils control algorithm

XIANG Tian, WANG Hao, MENG Tao, HAN Ke, JIN Zhong-he

Department of Information and Electronics Engineering, Zhejiang University, Hangzhou, 310027, China

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摘要：

为了提高皮卫星姿态控制系统的可靠性,提出动量轮故障后只采用磁力矩器重新捕获姿态的策略.该策略采用PD控制和LQR控制2种算法实现纯磁控下的皮卫星对地定向：当故障发生时,系统切入纯磁控模式,进行姿态的恢复；同时针对姿控系统只有在磁力矩器的情况下进行多组仿真.结果表明,应用这2套算法,在2种情况下均可以实现一定精度的对地定向,其中采用PD控制率的姿态恢复精度优于05°,而LQR控制率的姿态恢复精度在10°左右.

Abstract:

To improve the reliability of the pico-satellites-attitude control system, new methods were proposed, which employed magnetic coils as the only actuators to re-capture the attitude in case of flywheels failure. Two algorithms, a PD controller and a linear quadratic regulator, were applied to stabilize pico-satellite to nadir pointing using fully magnetic coils. When error occurs, the whole control system switched to the fully magnetic control mode to recover the attitude. Meanwhile, numerical simulations were also taken under the situation that only magnetic actuators available to the attitude control system of the pico-satellites. Results show that these two algorithms can achieve a certain accuracy of nadir-pointing in both situations. The attitude recovery accuracy adopting the PD control law better than 0.5° while the one with the LQR control law attains 10° or so．

出版日期: 2013-05-01

V 448.22

基金资助:

国家自然科学基金资助项目（60904090）.

通讯作者: 王昊，男，副教授. E-mail: roger@zju.edu.cn

作者简介: 向甜（1986－），女，博士生，从事皮卫星姿态测量及控制系统的设计方面研究.

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引用本文:

向甜,王昊,蒙涛,韩柯,金仲和. 基于纯磁控的皮卫星姿态恢复[J]. J4, 2013, 47(5): 843-852.

XIANG Tian, WANG Hao, MENG Tao, HAN Ke, JIN Zhong-he. Attitude recovery of pico-satellites based on fully magnetic coils control algorithm. J4, 2013, 47(5): 843-852.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2013.05.016 或 http://www.zjujournals.com/eng/CN/Y2013/V47/I5/843

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[1]	韩柯, 王昊, 朱小丰, 向甜, 金仲和. 皮卫星偏置动量轮在轨备份切换策略[J]. J4, 2011, 45(10): 1771-1776.
[2]	向甜,王昊,蒙涛,金仲和. 三轴磁强计与MEMS陀螺的在轨实时标定方法[J]. J4, 2014, 48(3): 541-547.

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