Abstract:In this paper a simple diagnostic method of a single IGBT open-circuit fault is presented, it is dedicated for threephase two-level voltage-inverter-fed vector controlled induction motor drive systems. A failure diagnosis is based on a transient analysis of a reference voltage space vector in stationary coordinates, without additional sensors. The diagnostic algorithm ensures detection and localization of single IGBT failures in time shorter than one period of a stator current fundamental harmonic, without reg… Show more
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