Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
交流回転電機の磁気音制御方法
Document Type and Number:
Japanese Patent JP4239886
Kind Code:
B2
Abstract:
A method for greatly reducing magnetic sound of an alternating current rotating machine compared with the past comprising superimposing an n-1-th order frequency in inverse turn and an m+1-th order magnetic sound reduction use harmonic current in the same turn on a multi-phase alternating current with reference to a basic frequency component of the multi-phase alternating current supplied to an armature of the alternating current rotating machine of multiple phases so as to reduce the n-th order, m-th order, and n+m-th order harmonic components of the basic frequency component among radial direction magnetic vibrating forces generated in the radial direction in a core of the alternating current rotating machine.

Inventors:
Soichi Yoshinaga
Kenichi Wakabayashi
Application Number:
JP2004119471A
Publication Date:
March 18, 2009
Filing Date:
April 14, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
株式会社デンソー
International Classes:
H02P6/10; H02P1/18; H02P3/08; H02P6/04; H02P6/06; H02P6/08; H02P6/17; H02P6/28; H02P21/00; H02P21/05; H02P21/22; H02P23/04; H02P27/06; H02P27/08; H04R25/00
Domestic Patent References:
JP2002010686A
JP2004064909A
JP2003174794A
JP3056058A
Foreign References:
WO2003041260A1
Attorney, Agent or Firm:
Hiroshi Okawa