A Neural-Fuzzy Approach for Fault Diagnosis of Hybrid Dynamical Systems: Demonstration on Three-Tank System

Abstract

This work is part of the diagnostic field of hybrid dynamic systems (HDS) whose objective is to ensure proper operation of industrial facilities. The study is initially oriented to the modelling approach dedicated to hybrid dynamical systems (HDS). The objective is to look for an adequate model encompassing both aspects (continuous and event). Then, fault diagnosis technique is synthesised using artificial intelligence (AI) techniques. The idea is to introduce a hybrid version combining neural networks and fuzzy logic for residual generation and evaluation. The proposed approach is then validated on three tank system. The modelling and diagnosis approaches are developed using MATLAB/Simulink environment.

Fuzzy Based Supervision Approach in the Event of Rotational Speed Inversion in an Induction Motor

“…The asynchronous motor is modelled by Park's equations to facilitate calculations and simplify representations [7][8][9][10][11][12]. The modelling of the asynchronous motor requires certain simplifying assumptions to obtain simple relations.…”