NDLI: Steering law for control moment gyroscopes based on H∞ theory

Content Provider	IEEE Xplore Digital Library
Author	Jingwen Yang Shuai Tang Li Zhang Zhiqiang Zheng
Copyright Year	2011
Description	Author affiliation: College of Machtronics and Automation, National University of Defense Technology, Changsha, Hunan, 410073 China (Jingwen Yang; Shuai Tang; Li Zhang; Zhiqiang Zheng)
Abstract	The complete dynamic equations for rotational maneuvers of spacecraft with a cluster of CMGs are derived. The mathematical control model of spacecraft is based on quaternion, which could avoid the singularity phenomenon of the Euler method when we describe the spacecraft eigenaxis rotational maneuvers. Then from a control perspective, a novel approach for the generation of gimbal commands for a cluster of Single-Gimbal CMG is presented and analysed. This steering law has a dynamics structure, and considers the relationship between torque error and gimbal rate limits. Comparing to the Moore-Penrose inverse, the proposed steering law effectively generates torque error when the CMG system become near singular. In the vicinity of the singular point, the torque error will produce value for the gimbal rates through the singular point, as a result, this will steers the gimbal angle away from the singularity though at an expense of some vibrating. The new steering law based on H∞ for CMG developed by this method not only complete the attitude control for spacecraft, but also could avoid the singular state. The numerical simulation results proved availability of the proposed steering law.
Starting Page	656
Ending Page	661
File Size	172967
Page Count	6
File Format	PDF
ISBN	9781457702686
e-ISBN	9781457702709
e-ISBN	9781457702693
DOI	10.1109/ICINFA.2011.5949075
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automation Conferences H∞ Spacecraft Robust Control Steering law CMG
Content Type	Text
Resource Type	Article

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