This paper proposes an active fault tolerant control scheme to cope with faults or failures affecting the flywheel spin rate sensors or satellite reaction wheel motors. The active fault tolerant control system consists of a fault detection and diagnosis module along with a control allocation and fault accommodation module directly exploiting the on-line fault estimates. The use of the nonlinear geometric approach and radial basis function neural networks allows to obtain a precise fault isolation, independently from the knowledge of aerodynamic disturbance parameters, and to design generalised estimation filters, which do not need a priori information about the internal model of the signal to be estimated. The adaptive control allocation and sensor fault accommodation can handle both temporal faults and failures. Simulation results illustrate the convincing fault correction and attitude control performances of the proposed system.
Adaptive FTC based on Control Allocation and Fault Accommodation for Satellite Reaction Wheels
2016-01-01
Baldi , P , Blanke , M , Castaldi , P , Mimmo , N & Simani , S 2016 , Adaptive FTC based on Control Allocation and Fault Accommodation for Satellite Reaction Wheels . in 3rd Conference on Control and Fault-Tolerant Systems (SysTol 2016) . IEEE , 3rd International Conference on Control and Fault-Tolerant Systems , Barcelona , Spain , 07/09/2016 . https://doi.org/10.1109/SYSTOL.2016.7739826
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC: | 629 |