Document Type : Original Article

Authors

1 Faculty of Electrical Engineering, Shahrood University of Technology, Shahrood, Iran

2 School of Computer Science and Electronic Engineering Department University of ESSEX Colchester, UK

10.22044/jcees.2026.18439.1013

Abstract

The stray flux signal is one of the key components for fault detection and identification in induction motors. In this study, the frequency spectrum of the stray flux is analyzed under various operating conditions of a wound-rotor induction motor in the presence of a rotor asymmetry fault (RAF). The results demonstrate that at high speeds, the fault indicators are affected by energy leakage from the fundamental frequency, which introduces fundamental-frequency-related noise and prevents reliable variations correlated with fault severity. To mitigate this effect, the Teager–Kaiser Energy Operator (TKEO) is employed to suppress the energy leakage associated with the supply frequency.

Keywords

Main Subjects

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