Model builder using functional and bond graph tools for FDI design

The main goal of the paper is to develop and implement model builder software for Fault detection and isolation in the field of thermofluid processes. This methodology is based on the analysis of bond graph, structural and functional models. Because of the integration of the functional model as an interface with the human operator, the designer can easily build the thermofluid process-dynamics models of most technological processes and generate the fault indicators in symbolic format. Instead of developing specific models for specific situations; a generic technique, which can be applied to any thermofluid process, is developed in this paper. The methodology is applied to a two-tank system.