ELECTRIC MOTOR SYSTEM, AND TURBO COMPRESSOR PROVIDED WITH SAME

An electric motor system (30) includes a bearingless motor (40, 50), a power source unit (61, 62) for applying a voltage to an armature winding (46a to 46c, 56a to 56c) and a support winding (47a to 47c, 57a to 57c) that are disposed in a stator (44, 54) of the bearingless motor (40, 50), and a cont...

Full description

Saved in:
Bibliographic Details
Main Authors NAKAZAWA Yuji, IRINO Yusuke, ONO Takaaki
Format Patent
LanguageEnglish
French
German
Published 16.08.2023
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
Online AccessGet full text

Cover

More Information
Summary:An electric motor system (30) includes a bearingless motor (40, 50), a power source unit (61, 62) for applying a voltage to an armature winding (46a to 46c, 56a to 56c) and a support winding (47a to 47c, 57a to 57c) that are disposed in a stator (44, 54) of the bearingless motor (40, 50), and a control unit (60) that controls the power source unit (61, 62) so that one of an armature voltage VA, which is a voltage across the armature winding (46a to 46c, 56a to 56c), and a support current IS, which is a current flowing through the support winding (47a to 47c, 57a to 57c), is increased and the other of the armature voltage VA and the support current IS is decreased. As a result, it is possible to operate the bearingless motor in accordance with a predetermined power source capacity.
Bibliography:Application Number: EP20190799098