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This paper provides an open switch fault diagnosis method for a voltage oriented controlled AC/DC line side converter. The technique is based on rectifier phase voltage errors calculations. For the faulted transistors localization, the average voltage errors of the rectifier are computed and their values and signs are analyzed. The proposed method is valid under the rectifier as well as the regenerative...
This paper deals with the diagnosis of the electrical faults of induction motor operating under the direct field-oriented control. Two different faults are taken into account: stator winding inter-turn short circuit and voltage source inverter transistor damage. The fault diagnostic algorithms are described. Performance of both algorithms is validated in presence of the different kind of damages....
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