Fault diagnosis of an induction motor based on differential algebra reconstructors

Recently the differential algebraic approach for fault diagnosis has been established. The main idea of this approach is to put the diagnosis problem solution in terms of the algebraic observability of the variables describing the faults behavior. Then, the diagnosis problem solution is interpreted as the ability to deduce a differential-algebraic relation with coefficients in a differential field for each component of the fault variable. In this paper, the algebraic approach is used for fault detection and fault estimation of a wound-rotor induction motor (WRIM).