Open AccessSuppression of Shaft Voltage by Rotor and Magnet Shape Design of IPM-Type High Voltage Motor
Author(s) -
KyungTae Kim,
Sang-Hoon Cha,
Jin Hur,
Jae-Sun Shim,
Byeongwoo Kim
Publication year - 2013
Publication title -
journal of electrical engineering and technology/journal of electrical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.226
H-Index - 27
eISSN - 2093-7423
pISSN - 1975-0102
DOI - 10.5370/jeet.2013.8.4.938
Subject(s) - magnet , rotor (electric) , voltage , ac motor , control theory (sociology) , engineering , automotive engineering , materials science , electrical engineering , computer science , control (management) , artificial intelligence
In this paper, we propose a method for suppressing shaft voltage by modifying the shape of the rotor and the permanent magnets in interior permanent magnet-type-high-voltage motors. Shaft voltage, which is induced by parasitic components and the leakage flux in motor-driven systems, adversely affects their bearings. In order to minimize shaft voltage, we designed a magnet re- arrangement and rotor re-structuring of the motor. The shaft voltage suppression effect of the designed model was confirmed experimentally and by comparative finite element analysis.