Monitoring and Diagnostics of the Induction Motor by the Methods of Relation of Redundancy Analytical

Although the induction motor (IM) is considered by its qualities of robustness and low cost of construction, it happens nevertheless that this one presents an electric breakdown or mechanics, which can reveal expensive in term of immobilization and maintenance time of the production equipment. Therefore it required the integration of a diagnosis and monitoring system there. This last be to detect and locate the faults of the system and only to propose quite obvious solutions. In this paper we will develop a method currently very answered which uses the relations of redundancies analytical (RRA) for faults detection. The generation of such relations makes it possible to generate residues for the detection of defects based on the use of models. A residue is temporal signal, function of the inputs and outputs of the process. In absence of faults, this residue is statically zero. During the appearance of a fault, its amplitude vary significantly. Finally the analysis of these residues makes it possible to detect the time of appearance of faults