Journal article 1442 views
Fixed-Time Attitude Control for Rigid Spacecraft With Actuator Saturation and Faults
IEEE Transactions on Control Systems Technology, Volume: 24, Issue: 5, Pages: 1892 - 1898
Swansea University Author: Michael Friswell
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DOI (Published version): 10.1109/TCST.2016.2519838
Abstract
This brief investigates the finite-time control problem associated with attitude stabilization of a rigid spacecraft subject to external disturbance, actuator faults, and input saturation. More specifically, a novel fixed-time sliding mode surface is developed, and the settling time of the defined s...
| Published in: | IEEE Transactions on Control Systems Technology |
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| ISSN: | 1063-6536 1558-0865 |
| Published: |
2016
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa30889 |
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| Abstract: |
This brief investigates the finite-time control problem associated with attitude stabilization of a rigid spacecraft subject to external disturbance, actuator faults, and input saturation. More specifically, a novel fixed-time sliding mode surface is developed, and the settling time of the defined surface is shown to be independent of the initial conditions of the system. Then, a finite-time controller is derived to guarantee that the closed-loop system is stable in the sense of the fixed-time concept. The actuator-magnitude constraints are rigorously enforced and the attitude of the rigid spacecraft converges to the equilibrium in a finite time even in the presence of external disturbances and actuator faults. Numerical simulations illustrate the spacecraft performance obtained using the proposed controller. |
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| College: |
Faculty of Science and Engineering |
| Issue: |
5 |
| Start Page: |
1892 |
| End Page: |
1898 |