A VI Based Tool for Inverter fed Induction Motor Diagnostic

Nowadays virtual instruments (more briefly called VIs) are very useful tools both in research and industrial applications. Their great flexibility, reconfigurability, reliability and ease of use allow an effective implementation of complex measurements architectures. In particular, the capability to manage long measurement processes without staff presence makes the VIs a powerful support for the development of diagnostic techniques which require a continuous monitoring of the system. In this paper a novel Vl-based diagnostic monitoring technique which permits the identification of rotor faults in small inverter-fed induction motors will be presented.