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Erschienen in:
2018 | OriginalPaper | Buchkapitel
Directed Graph-Based Adaptive Attitude Cooperative Control for Fractionated Spacecraft
verfasst von : Zhaoming Li, Jiejuan Wang
Erschienen in: Proceedings of 2017 Chinese Intelligent Automation Conference
Verlag: Springer Singapore
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Abstract
Aiming at the attitude cooperative control of fractionated spacecraft with uncertain moment of inertia and external disturbance torques, this paper proposes a distributed adaptive attitude cooperative controller according to graph theory and consistency theory. By using the controller, the cooperative tracking of modular spacecraft attitude to desired attitude is realized. Firstly, the modified Rodriguez parameter and Euler equation of motion are utilized to describe the attitude. Then, a directed graph is applied to describe the communication topology among modular spacecrafts, and the uncertainty of the moment of inertia of modular spacecraft is comprehensively represented by one parameter, followed by the online evaluation using the designed adaptive law. Meanwhile, compensation term is designed in the controller to offset the influence of the disturbance torques. The final simulation results verify the effectiveness of this controller.