Robust Control Allocation for Spacecraft Attitude Stabilization under Actuator Faults and Uncertainty
Joint Authors
Wang, Yongchao
Zhang, Zhiqiang
Zhang, Aihua
Karimi, Hamid Reza
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-13
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
A robust control allocation scheme is developed for rigid spacecraft attitude stabilization in the presence of actuator partial loss fault, actuator failure, and actuator misalignment.
First, a neural network fault detection scheme is proposed, Second, an adaptive attitude tracking strategy is employed which can realize fault tolerance control under the actuator partial loss and actuator failure within λmin=0.5.
The attitude tracking and faults detection are always here during the procedure.
Once the fault occurred which could not guaranteed the attitude stable for 30 s, the robust control allocation strategy is generated automatically.
The robust control allocation compensates the control effectiveness uncertainty which caused the actuator misalignment.
The unknown disturbances, uncertain inertia matrix, and even actuator error with limited actuators are all considered in the controller design process.
All are achieved with inexpensive online computations.
Numerical results are also presented that not only highlight the closed-loop performance benefits of the control law derived here but also illustrate its great robustness.
American Psychological Association (APA)
Zhang, Aihua& Wang, Yongchao& Zhang, Zhiqiang& Karimi, Hamid Reza. 2014. Robust Control Allocation for Spacecraft Attitude Stabilization under Actuator Faults and Uncertainty. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-498180
Modern Language Association (MLA)
Zhang, Aihua…[et al.]. Robust Control Allocation for Spacecraft Attitude Stabilization under Actuator Faults and Uncertainty. Mathematical Problems in Engineering No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-498180
American Medical Association (AMA)
Zhang, Aihua& Wang, Yongchao& Zhang, Zhiqiang& Karimi, Hamid Reza. Robust Control Allocation for Spacecraft Attitude Stabilization under Actuator Faults and Uncertainty. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-498180
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-498180