Observer-based Fault Tolerant Control for Constrained Switched Systems

  • Yang, Hao (College of Automation Engineering(CAE), Nanjing University of Aeronautics and Astronautics(NUAA)) ;
  • Jiang, Bin (College of Automation Engineering, Nanjing Univ. of Aeronautics and Astronautics(NUAA)) ;
  • Cocquempot, Vincent (LAGIS-CNRS)
  • Published : 2007.12.31

Abstract

An observer-based fault tolerant control (FTC) method is proposed for constrained switched systems (CSS) with input constraints. A family of Lyapunov-based bounded controllers are designed to ensure that, whenever actuator faults occur at the dwell time period of each continuous mode, the mode is always within its corresponding stability region. A set of switching laws are designed to guarantee the asymptotic stability of the overall CSS. The fixed stability regions on which the FTC method is based are also relaxed by the proposed variable stability regions. An example of CPU processing illustrates the effectiveness of proposed method.

Keywords

References

  1. R. A. Decarlo, M. S. Branicky, S. Pettersson, and B. Lennartson, 'Perspectives and results on the stability and stabilizability of hybrid systems,' Proc. of the IEEE, vol. 88, no. 7, pp. 1069-1082, 2000 https://doi.org/10.1109/5.871309
  2. N. H. EI-Farra, P. Mhaskar, and P. D. Christofides, 'Output feedback control of switched nonlinear systems using multiple lyapunov functions,' Systems and Control Letters, vol. 54, no. 12, pp. 1163-1182, 2005 https://doi.org/10.1016/j.sysconle.2005.04.005
  3. M. Blanke, M. Kinnaert, J. Lunze, and M. Staroswiecki, Diagnosis and Fault-Tolerant Control, Springer, Verlag Berlin Heidelberg, 2003
  4. B. Jiang, M. Staroswiecki, and V. Cocquempot, 'Fault accommodation for a class of nonlinear dynamic systems,' IEEE Trans. on Automatic Control, vol. 51, no. 9, pp. 1578-1583, 2006 https://doi.org/10.1109/TAC.2006.878732
  5. H. Yang, B. Jiang, and M. Staroswiecki, 'Observer based fault tolerant control for a class of switched nonlinear systems,' IET Control Theory and Applications, vol. 1, no. 5, pp. 1523-1532, 2007 https://doi.org/10.1049/iet-cta:20060406