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Fault Tolerant Sliding Mode Control for a Nanosatellite

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Authors
Shin, Miri; Kang, Chul Woo; Lim, Junkyu; Park, Chan Gook
Issue Date
2012-10-19
Publisher
Institute of Control, Robotics and Systems
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 ControlNanosatelliteFault tolerant attitude controlSNUSAT-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
URI
http://hdl.handle.net/10371/79085
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
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