2024
DOI: 10.1115/1.4067108
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Bearing Electrical Erosion Signal Detection Technique Based on Current Signal Analysis for Electric Motors

Ji-Min Hwang,
Ji-Su Jeong,
Ji-Wook Kim
et al.

Abstract: In modern industries, enhancing the efficiency and performance of electric motors is a critical requirement. Pulse width modulation (PWM) inverters utilized to enhance the energy efficiency of electric motors generate complex shaft voltages and bearing currents, leading to bearing electrical erosion. This study proposes a new method for detecting high-frequency (HF) circulating current and electric discharge machining (EDM) current signals in bearings for electric motors. The proposed method utilizes common mo… Show more

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