Fault Detection in Nuclear Systems Using Sliding Mode Observers

Ablay G. , Aldemir T.

NUCLEAR SCIENCE AND ENGINEERING, cilt.173, sa.1, ss.82-98, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 173 Konu: 1
  • Basım Tarihi: 2013
  • Doi Numarası: 10.13182/nse11-43
  • Sayfa Sayıları: ss.82-98


The use of sliding mode observers as a model-based method is proposed for robust fault detection and isolation in linear and nonlinear nuclear systems. A sliding mode output observer and a sliding mode state observer are designed and applied to a U-tube steam generator model, a coupled nonlinear reactor model, and a pressurizer model to detect additive and multiplicative faults in the presence of uncertainties and measurement noise. Numerical results for both steady-state and transient responses of the example systems are presented to illustrate the effectiveness of the proposed method.