Isolation of Multiplicative Faults in the Industrial Actuator Benchmark

Abstract This paper presents an approach to the problem of fault isolation applied to the actuator benchmark test based on multiplicative fault isolation with parity equations. One of the problems of this benchmark is relative to the isolation of a multiplicative fault from additive disturbances. The fact that a fault can be modelled as multiplicative is used to isolate it from additive disturbances. An optimization procedure gets the most suitable residuals for multiplicative fault isolation.