Micro-satellite has long-term in-orbit work in the harsh environment of space, the components such as actuators and sensors in the attitude control system continue to perform in-orbit control operations, therefore are prone to faults. In practical mission, such as formation flying, orbital transfer, de-tumbing and attitude control need to use thruster to control. As the thrust control is fail, the entire mission fails. In the paper, the two-stage unscented kalman filter is used to obtain the effectiveness factor value and system estimated states are obtained. Meanwhile, a robust thruster controller is designed with the estimated results to accomplish the joint design of Fault Detection and Diagnosis and Fault-Tolerant Control.
Fault Diagnosis and Fault-Tolerant Control of Micro-Satellite Propulsion Mode Attitude Control
Applied Mechanics and Materials ; 764-765 ; 607-612
2015-05-28
6 pages
Article (Journal)
Electronic Resource
English
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