Method for disturbance compensation based on sliding mode disturbance observer for spacecraft with large flexible appendage

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United States of America Patent

PATENT NO 9694918
SERIAL NO

15371549

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Abstract

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The present invention provides a method for disturbance compensation based on a sliding mode disturbance observer for a spacecraft with a large flexible appendage, comprising steps of: a) building a spacecraft attitude control system; b) constructing an external system, the external system being incorporated with an uncertain portion of a damping matrix of a flexible appendage of the spacecraft; the external system being incorporated with an uncertain portion of a rigidity matrix of the flexible appendage of the spacecraft and describing a sum of flexible vibration and environmental disturbance; c) configuring a sliding mode disturbance observer for estimating the value of the sum of flexible vibration and environmental disturbance; d) compounding a nominal controller with the sliding mode disturbance observer in step c) to obtain a compound controller; the compound controller compensating for the sum of flexible vibration and environmental disturbance.

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Patent Owner(s)

Patent OwnerAddress
BEIHANG UNIVERSITY100191 NO 37 HAIDIAN DISTRICT BEIJING XUEYUAN ROAD BEIJING CITY BEIJING CITY 100191

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guo, Lei Beijing, CN 264 1743
Qiao, Jianzhong Beijing, CN 4 1
Xu, Yuhan Beijing, CN 2 0
Zhang, Peixi Beijing, CN 4 1
Zhu, Yukai Beijing, CN 2 0

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