Finite-time control for electromagnetic satellite formations

被引：40

作者：

Zeng, Guoqiang ^{[2
]}

Hu, Min ^{[1
]}

机构：

[1] Acad Equipment, Beijing 101416, Peoples R China

[2] Natl Univ Def Technol, Coll Aerosp & Mat Engn, Changsha 410073, Hunan, Peoples R China

来源：

ACTA ASTRONAUTICA | 2012年 / 74卷

关键词：

Electromagnetic formation flying; Finite-time control; Sliding mode control; Tracking control; Robustness; SLIDING MODE CONTROL; FORMATION FLIGHT; SYSTEMS; STABILIZATION; STABILITY; TRACKING; ROBUST;

D O I：

10.1016/j.actaastro.2012.01.003

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The current paper investigates the electromagnetic formation flight control problem using the finite-time control technique. The electromagnetic force model is presented, and the effects of the Earth's magnetic field on the EMFF satellites are analyzed. The equations of relative motion and general formation description method are then established. A robust sliding mode controller is designed to achieve trajectory tracking in the presence of model uncertainties and external disturbances. The proposed controller, which combines the advantages of linear and terminal sliding mode controls, can guarantee the convergence of tracking errors in finite time rather than in the asymptotic sense. By constructing a particular Lyapunov function, the closed-loop system is proven globally stable and convergent. Numerical simulations of formation maintenance and reconfiguration are then presented to show the effectiveness of the developed controller. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：120 / 130

页数：11

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