Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
REGENERATION SYSTEM FOR COIL FIELD TYPE SYNCHRONOUS MOTOR, AND METHOD OF CONTROLLING THE SAME
Document Type and Number:
Japanese Patent JP2009296792
Kind Code:
A
Abstract:

To improve the life of a battery by increasing the efficiency of regeneration in supplying a field current to a rotor coil and reducing a regeneration current to the battery connected to a stator coil.

A coil field type synchronous motor is provided which includes a bi-directional switch electrically connected to a rotor coil and a capacitor electrically connected to the bi-directional switch, and a regeneration system for the coil field type synchronous motor is provided which includes a control means electrically connected to the bi-directional switch and the capacitor. When the first derivative of the acceleration of a load of the coil field type synchronous motor is negative, the control means accumulates in the capacitor a regenerative power instantly regenerated from a stator coil to the rotor coil via the bi-directional switch and supplies the accumulated regenerative power to the rotor coil via the bi-directional switch.


Inventors:
MITSUTA KENRO
INOUE MASAYA
SUGA IKURO
DAIKOKU AKIHIRO
Application Number:
JP2008000147946
Publication Date:
December 17, 2009
Filing Date:
June 05, 2008
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H02P6/24; H02P3/18; H02P6/06; H02P6/08; H02P6/16; H02P6/32; H02P21/00; H02P21/06; H02P21/36; H02P27/04
Domestic Patent References:
JP2004056881A2004-02-19
JPH08256497A1996-10-01
JP2003259685A2003-09-12
JPH0984210A1997-03-28
JPH10309002A1998-11-17
JP2006060922A2006-03-02
Attorney, Agent or Firm:
高橋 省吾
稲葉 忠彦
村上 加奈子
中鶴 一隆