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논문 기본 정보

저자정보
(Incheon National University) (Incheon National University) (Incheon National University) (Incheon National University)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제74권 제11호
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    초록·키워드

    With the expansion of high-voltage systems and the growing demand for electric motors, shaft voltage-induced bearing electrical erosion has emerged as a critical problem in the electric vehicle (EV) industry. Shaft voltage leads to increased dielectric breakdown of bearing lubricants and elevated vibration, which in turn raises the frequency of electrical discharges within bearings and can result in irreversible motor damage. This study analyzes the effects of changes in stator end winding length and rotor winding arrangement in a wound field synchronous motor (WFSM) on parasitic capacitance and shaft voltage characteristics. Variations in these winding configurations during the manufacturing process alter the parasitic capacitance inside the motor, thereby influencing the magnitude of shaft voltage. The effects of winding design on parasitic capacitance and shaft voltage were analyzed to support reliability improvements in EV motors.

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      UCI(KEPA) : I410-151-26-02-094553978