Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 173 / Number 1 / Pages 82-98
Günyaz Ablay, Tunc Aldemir
Nuclear Science and Engineering / Volume 173 / Number 1 / Pages 82-98
Format:electronic copy (download)
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.
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