A novel output redefinition method for nonlinear H∞ attitude stabilization of a flexible spacecraft

This paper addresses a novel output redefinition method for the nonlinear H∞$$ {H}_{\infty } $$ attitude stabilization problem of a flexible spacecraft. As an idea, the flexible appendage tip‐point can be selected as attitude output which may improve attitude pointing accuracy. However, it makes the...

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Vydáno v:Asian journal of control Ročník 26; číslo 3; s. 1625 - 1632
Hlavní autoři: Majid Esmaeilzadeh, Seyed, Sadegh Zeyghami, Mohammad
Médium: Journal Article
Jazyk:angličtina
Vydáno: Hoboken Wiley Subscription Services, Inc 01.05.2024
Témata:
attitude
Attitude control
Attitude stability
back‐stepping
Control systems design
Flexible spacecraft
H-infinity control
H∞$$ {H}_{\infty } $$ control
output redefinition
robust control
Spacecraft
ISSN:1561-8625, 1934-6093
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Shrnutí:This paper addresses a novel output redefinition method for the nonlinear H∞$$ {H}_{\infty } $$ attitude stabilization problem of a flexible spacecraft. As an idea, the flexible appendage tip‐point can be selected as attitude output which may improve attitude pointing accuracy. However, it makes the system non‐minimum phase. The output redefinition method is an effective method to make the system minimum phase. In this paper, a novel output redefinition is proposed to overcome the non‐minimum phase property such that it improves the attitude control system performance. Then, a nonlinear H∞$$ {H}_{\infty } $$ controller is designed based on back‐stepping approach and a modal observer. The simulation results show the effectiveness of the proposed method in the presence of model uncertainties and environmental disturbances.
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ISSN:1561-8625
1934-6093
DOI:10.1002/asjc.3296