Signal-based Technique for Fault Detection and Isolation of Inverter Faults in Multi-phase Drives

Fabien Meinguet (1) , Paul Sandulescu (1) , Bassel Aslan (1) , Li Lu (1) , Ngac-Ky Nguyen (1) , Xavier Kestelyn (1) , Eric Semail (1)

1 L2EP - Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697

A method for fault detection and isolation is proposed and applied to inverter faults in multi-phase drives. An analysis of simulations in faulty conditions leads to the derivation of suitable fault indices. These are based on the unbalance of the phase currents and their instantaneous frequency. The method is applied to a five-phase permanent-magnet synchronous machine drive. Simulations and experiments validate the proposed method.

Mots clés: AC machines; Condition monitoring; Multi-phase drives; Fault detection; Fault diagnosis; Inverters; Permanent magnet machines

Domaines: Electronique; Energie électrique

Fabien Meinguet, Paul Sandulescu, Bassel Aslan, Li Lu, Ngac-Ky Nguyen, et al.. Signal-based Technique for Fault Detection and Isolation of Inverter Faults in Multi-phase Drives. IEEE International Conference on Power Electronics, Drives and Energy Systems 2012 (PEDES 2012), Dec 2012, Bengaluru, India. pp.1-6, ⟨10.1109/PEDES.2012.6484321⟩. ⟨hal-00794314⟩