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A Model Predictive Decentralized Control Scheme With Reduced Communication Requirement for Spacecraft Formation

Lavaei, Javad and Momeni, Ahmadreza and Aghdam, Amir G. (2008) A Model Predictive Decentralized Control Scheme With Reduced Communication Requirement for Spacecraft Formation. IEEE Transactions on Control Systems Technology, 16 (2). pp. 268-278. ISSN 1063-6536. doi:10.1109/TCST.2007.903389.

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This brief investigates the control problem for a number of cooperative spacecraft with communication constraints. It is assumed that a set of cooperative local controllers corresponding to the individual spacecraft is given which satisfies the desired objectives of the formation. It is to be noted that due to the information exchange between the local controllers, the overall control structure can be considered centralized in general. However, communication in flight formation is expensive. Thus, it is desired to have some form of decentralization in control structure, which has a lower communication requirement. This decentralized controller consists of local estimators inherently, so that each local controller estimates the state of the whole formation. Necessary and sufficient conditions for the stability of the formation under the proposed decentralized controller are obtained. It is shown that the decentralized control system, if stable, behaves almost the same as its centralized counterpart. Moreover, robustness of the decentralized controller is studied and compared to that of the corresponding centralized controller. It is finally shown that the proposed decentralized controller comprises most of the features of its centralized counterpart. The efficacy of the proposed method is demonstrated through simulations.

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Additional Information:© Copyright 2008 IEEE. Reprinted with permission. Manuscript received March 16, 2006; revised January 12, 2007. Manuscript received in final form April 4, 2007. [Posted online: 2008-02-25] Recommended by Associate Editor C.A. Rabbath. This work was supported by the Natural Sciences and Engineering Research Council of Canada under Grant RGPIN-262127-03.
Subject Keywords:Cooperative systems, distributed control, predictive control, robustness, space vehicle control
Issue or Number:2
Record Number:CaltechAUTHORS:LAVieeetcst08
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9780
Deposited By: Archive Administrator
Deposited On:15 Mar 2008
Last Modified:08 Nov 2021 21:02

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