Adaptive FTC based on Control Allocation and Fault Accommodation for Satellite Reaction Wheels

P. Baldi, Mogens Blanke, P. Castaldi, N. Mimmo, S. Simani

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Abstract

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.
Original languageEnglish
Title of host publication3rd Conference on Control and Fault-Tolerant Systems (SysTol 2016)
Number of pages6
PublisherIEEE
Publication date2016
ISBN (Print)978-1-5090-0658-8
DOIs
Publication statusPublished - 2016
Event3rd International Conference on Control and Fault-Tolerant Systems - Barcelona, Spain
Duration: 7 Sep 20169 Sep 2016

Conference

Conference3rd International Conference on Control and Fault-Tolerant Systems
CountrySpain
CityBarcelona
Period07/09/201609/09/2016

Keywords

  • Sensors
  • Actuars
  • Satellites
  • Aerodynamics
  • Mathematical model
  • Wheels
  • Frequency modulation

Cite this

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. https://doi.org/10.1109/SYSTOL.2016.7739826