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Fault detection for linear uncertain systems with sensor faults

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2 Author(s)
Yang, G.-H. ; Coll. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China ; Wang, H.

The study paper deals with sensor fault detection problem for a class of linear uncertain systems with bounded disturbances and non-zero constant reference inputs. The sensor faults are modelled as multi-mode, named as fault-free mode and faulty modes. A steady-state-based approach is proposed to detect the sensor faults. The steady-state-based approach can be used to detect lock-in-place sensor faults with arbitrary small magnitudes, which has not been well investigated in the literature. A convergent iterative algorithm based on linear matrix inequalities is given to obtain the solutions. A numerical example is given to illustrate the effectiveness of the proposed methods.

Published in:

Control Theory & Applications, IET  (Volume:4 ,  Issue: 6 )