Employing neutral-voltage spectrum for internal turn-to-turn fault detection in the induction machine drives

Mohammad Javad Jafarian | Jalal Nazarzadeh

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URL :   http://research.shahed.ac.ir/WSR/WebPages/Report/PaperView.aspx?PaperID=85319
Date :  2018/07/25
Publish in :    ISA Transactions
DOI :  https://doi.org/10.1016/j.isatra.2018.07.027

Keywords :internal, turn-to-turn, fault, induction

Abstract :

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This paper introduces a diagnostic method for a Stator Internal Turn-to-Turn Fault (ITTF) in induction machine drives. Conventional Winding Function (WF) and Finite Element Method (FEM) are employed for modelling induction machines with the ITTF. The effects of machine slots, winding distributed types and different air-gap functions on machine inductance spectra are investigated. In the end, based on the theoretical and experimental analysis, the spectrum of the neutral-voltage is shown to be a proper approach for a hidden ITTF signature in Pulse Width Modulation (PWM) drives.