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Fault Tolerant Sliding Mode Control for a Nanosatellite
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- Authors
- Issue Date
- 2012-10-19
- Citation
- 2012 12th International Conference on Control, Automation and Systems Oct. 17-21, 2012 in ICC, Jeju Island, Korea, pp. 44-48
- Keywords
- Sliding Mode Control ; Nanosatellite ; Fault tolerant attitude control ; SNUSAT-1
- Abstract
- This paper describes a nanosatellite attitude control being able to perform fault tolerant control to increase a
reliability of a nanosatellite. A fault-tolerant sliding mode controller is used for a nanosatellite using four reaction
wheels as a set of actuators. The fault-tolerant sliding mode controller is designed to perform the rest-to-rest maneuver
of a satellite system. The actuator fault reflects the degradation of the actuation effectiveness. The Lyapunov theorem is
used to analyze the system stability. In computer simulations, we use SNUSAT-1 made in Seoul National University as
an applied nanosatellite. The control scheme of a nanosatellite is verified under the actuator fault situation that one
reaction wheel of four reaction wheels is fault as well as the normal situation that four reaction wheels are healthy.
- Language
- English
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