Fault diagnosis in systems using directional residuals

The problem of directional residual generation in linear dynamic systems for fault detection and isolation (FDI) is addressed in this paper. The authors propose some extensions to a method first introduced by Gertler and Monajemy (1993) which uses the system-matrix defines by Rosenbrock (1970). A solution is given to the inversion problem of the system-matrix. The estimation of the fault parameters is then studied for different types of faults (sensor or actuator) An example of application illustrates the proposed approach.<
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