AUTHOR : Sang-Ho Lee, Suk-Hee Lee, Jung-Pyo Hong, Sang-Moon Hwang, Ji-Young Lee, Young-Kyoun Kim
ORGANIZATION : 2006 ICEM
JOURNAL :
YEAR : 2006. 09
VOL : CD
ISSUE :
PAGE : 546(1) ~ 546(4)
Abstract—This paper presents methods to reduce acoustic noise
in interior permanent magnet (IPM) motor. Mechanical and
magnetic sources are considered to reduce noise of the machine,
and structural and electromagnetic designs are performed. In the
structural design to reduce mechanical source, the resonant
frequency of stator are moved to higher frequency for
enhancement of stiffness and structural stability is also enhanced.
Then, in the electromagnetic design to reduce magnetic source,
the harmonic amplitude of normal force which affects stator pole
is firstly reduced by using objective function of response surface
methodology (RSM). In addition, second optimization for
reduction of torque ripple is performed. The validity of the design
procedures and objective function is confirmed with their
calculated and experimental results.