Title:
MOTOR DRIVING DEVICE FOR REDUCING LOAD ON ROTATING SHAFT
Document Type and Number:
WIPO Patent Application WO/2019/156342
Kind Code:
A1
Abstract:
The present invention relates to a motor driving device which can reduce a load burden on a rotating shaft when a magnetic bearing is initially operated. When a rotor and a stator are initially aligned, the motor driving device can apply a greater current to a coil positioned farthest away from the ground among a plurality of coils than to the other coils, so as to reduce a levitation force necessary for initial alignment of the rotor and the stator.
Inventors:
KIM MIN GI (KR)
Application Number:
PCT/KR2018/016167
Publication Date:
August 15, 2019
Filing Date:
December 18, 2018
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H02K11/30; H02K7/09; H02P1/02
Foreign References:
| JP2001190043A | 2001-07-10 | |||
| JP2004140882A | 2004-05-13 | |||
| JP2017147783A | 2017-08-24 | |||
| JPH03107615A | 1991-05-08 | |||
| KR20080112955A | 2008-12-26 | |||
| KR20150179994A | 2015-12-16 |
Other References:
See also references of EP 3754821A4
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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