A graphical active fault tolerant control approach

Abstract

A fault tolerant control synthesis is a key solution for great and several issues which threat system safety and may have critical and dangerous consequences especially in aeronautics, medicines and chemical industry. This is why, in this present work, an Active Fault Tolerant Control (AFTC) framework is designed using a linear adaptive observer-based fault detection and estimation tasks, into graphical aspect, and a graphical PI controller in an additive form so as to ensure a control closed-loop strategy. Motivated by benefits of the Bond Graph (BG) tool as a useful method for multidisciplinary systems and which is characterized by structural, causal and behavioral properties, the proposed approach is presented. The efficiency and the relevance of the developed AFTC are proved through simulation results on a hydraulic process with two tanks together with and without fault scenarios.