access icon free Fault detection based on higher-order sliding mode observer for a class of switched linear systems

This study considers the fault detection problem for a class of switched linear systems when the observer matching condition is not satisfied. Without using decoupling transformations, a residual signal, based on reduced order sliding mode observers, is introduced for the detection of faults which occur on the continuous part of the system. Two numerical simulations on the cascade multicellular converter and on the boost converter illustrate the effectiveness of the proposed fault detection scheme.

Inspec keywords: linear systems; observers; power convertors; fault diagnosis; variable structure systems; switching systems (control); numerical analysis

Other keywords: switched linear systems; higher-order sliding mode observer; boost converter; fault detection problem; residual signal; numerical simulations; cascade multicellular converter; reduced order sliding mode observers

Subjects: Multivariable control systems; Linear control systems; Time-varying control systems; Other numerical methods; Simulation, modelling and identification

References

    1. 1)
    2. 2)
    3. 3)
    4. 4)
    5. 5)
    6. 6)
    7. 7)
      • 4. Alessandri, A., Coletta, P.: ‘Design of observers for switched discrete-time linear systems’. American Control Conf., Denver, 2003, pp. 27852790.
    8. 8)
    9. 9)
    10. 10)
    11. 11)
      • 9. Belkhiat, D., Manamanni, N., Messai, N., Djemai, M.: ‘Fault detection & isolation for a class of hybrid systems: a dedicated switched robust observer scheme’. Twentieth Mediterrane and Conf. on Control and Automation (MED), Barcelona, 2012, pp. 978983.
    12. 12)
    13. 13)
    14. 14)
    15. 15)
    16. 16)
      • 3. Liberzon, D.: ‘Switching in systems and control’ (Birkhauser, Boston, MA, 2003).
    17. 17)
    18. 18)
    19. 19)
      • 7. Isermann, R.: ‘Fault diagnosis of technical process—applications’ (Springer, Heidelberg, 2006).
    20. 20)
    21. 21)
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-cta.2014.1004
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