Predominantly the impedance faults can be classified as Low Impedance Faults (LIF) and High (HIF). The LIF detected protected by a conventional protective device. However, if fault occurs in system, it is difficult to detect because of low magnitude current. overcurrent relay, which smartly detects faults, fails faults. This research work organized two components. In first component some litera...

A methodology is proposed to diagnose faults from a detection system that allows to express uncertainty with intervals in parameters and measurements. A fault is detected by comparing current measurements with computed external and internal approximations of behavior. The results are applied to diagnose faults. A qualitative data set is obtained in order to create fault rules. A fault library i...

This paper describes a new CAD tool, FTROM — Fault-Tolerant ROM compiler, which synthesizes layout geometries of fault-tolerant ROM modules with flexible, user-specified geometry and CMOS design-rule parameters. This physical design tool produces high-quality built-in self-testable (BIST) and fault-tolerant ROM layouts and uses a novel, minimum-delay overhead approach for fault-tolerance. A too...

An active sensor fault compensation control law is developed for a class of nonlinear systems to guarantee the closed-loop stability in the presence of a fault, based on a fuzzy logic system and sliding mode. Through the adaptive process of the parameters, the dynamics caused by the fault is counteracted. The fuzzy sliding mode control is introduced to attenuate the fuzzy approximation error. S...