电动力绳系离轨系统电流与拉力混合展开控制

doi:10.7527/S1000-6893.2017.21464

电子电气工程与控制

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电动力绳系离轨系统电流与拉力混合展开控制

黄静^1,2, 刘刚^1,2, 朱东方^1,2, 孙禄君^1,2

1. 上海航天控制技术研究所, 上海 201109;
2. 上海市空间智能控制技术重点实验室, 上海 201109

收稿日期:2017-05-31 修回日期:2017-11-08 出版日期:2018-02-15 发布日期:2017-11-08
通讯作者: 黄静,E-mail:154552879@qq.com E-mail:huangjing04415@163.com
基金资助:
上海市自然科学基金（16ZR1415700）；上海市青年科技英才扬帆计划（15YF1405200，17YF1408400，17YF1408300）

Current and tension control for deployment of a deorbiting electro-dynamic tether system

HUANG Jing^1,2, LIU Gang^1,2, ZHU Dongfang^1,2, SUN Lujun^1,2

1. Shanghai Institute of Spaceflight Control Technology, Shanghai 201109, China;
2. Shanghai Key Laboratory of Aerospace Intelligent Control Technology, Shanghai 201109, China

Received:2017-05-31 Revised:2017-11-08 Online:2018-02-15 Published:2017-11-08
Supported by:
Natural Science Foundation of Shanghai (16ZR1415700); Shanghai Sailing Program (15YF1405200, 17YF1408400, 17YF1408300)

摘要/Abstract

摘要： 电动力绳系离轨系统是一种典型的空间碎片主动消除技术，本文针对电动力绳离轨系统在初始阶段展开的控制问题，仅通过调节有限的系绳张力与电流，不依赖其他推进器，将导电系绳释放至期望长度并抑制系绳的摆动。首先，采用倾斜偶极子地磁场模型，建立考虑系绳质量的近地轨道二体电动力绳系卫星系统动力学模型；其次，在系绳张力与电流存在约束的条件下，采用反步法结合抗饱和辅助函数解决控制输入受限问题，并引入动态尺度广义逆实现了欠驱动电动力绳系统展开稳定控制问题；然后，应用Lyapunov稳定性定理证明了其闭环系统的稳定性；最后，在MATLAB/SIMULINK平台上进行了仿真验证。结果表明：通过调节系绳张力与电流，可以将系绳释放到指定位置，同时控制输入满足约束条件。

关键词: 电动力绳系, 欠驱动系统, 展开控制, 反步法, 控制饱和

Abstract: The deorbiting electrodynamic tether system is a typical active space debris removal technology. In this paper, the feedback control of the tension and current is investigated for the deployment of an electro-dynamic tether system without the consumption of chemical propellants. First, considering the effect of the tether mass, a dynamic model for the two-body electro-dynamic tether system in low earth orbit is developed based on the geomagnetic field modeled using a tilted dipole approximation. Then, a control scheme forthe physical bounds of the tether tension and electric current is proposed by using the anti-windup compensator and the backstepping method. Furthermore, with the introduction of dynamically scaled generalized inversion, the control law is improved to achieve deployment stabilization of the underactuated electro-dynamic tether system. Within the Lyapunov framework, the stablilization of the system state is analyzed. Finally, simulation study is carried out on the platform of MATLAB/SIMULINK to evaluate the performance of the control strategy. The results indicate that the length of the tether converges to the desired value by controlling the tension and current while the feedback control inputs remain within the prescribed bounds all the time.

Key words: electro-dynamic tether, underactuated system, deployment control, backstepping method, saturation control

中图分类号:

V442.8

黄静, 刘刚, 朱东方, 孙禄君. 电动力绳系离轨系统电流与拉力混合展开控制[J]. 航空学报, 2018, 39(2): 321464-321464.

HUANG Jing, LIU Gang, ZHU Dongfang, SUN Lujun. Current and tension control for deployment of a deorbiting electro-dynamic tether system[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(2): 321464-321464.

参考文献

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E-mail：hkxb@buaa.edu.cn

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电动力绳系离轨系统电流与拉力混合展开控制

Current and tension control for deployment of a deorbiting electro-dynamic tether system

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