Title:
電力システム
Document Type and Number:
Japanese Patent JP4925181
Kind Code:
B2
Abstract:
An electric power system comprises an AC motor, a first DC voltage unit, an inverter as a power converter, being connected between the AC motor and first DC voltage unit, for exchanging power between these two components; and a controlled DC power supply which is connected between an arbitrary spot of a coil of the AC motor and a positive or negative electrode of the first DC voltage unit and which connects at least one semiconductor switching element and a battery as a second DC voltage unit in series.
Inventors:
Junichi Ito
Akio Toba
Mitsuyoshi Fujita
Akio Toba
Mitsuyoshi Fujita
Application Number:
JP2006318075A
Publication Date:
April 25, 2012
Filing Date:
November 27, 2006
Export Citation:
Assignee:
Nagaoka University of Technology
Fuji Electric Co., Ltd.
Fuji Electric Co., Ltd.
International Classes:
H02P27/06; H02M7/5387; H02P23/07; H02P25/022; H02P25/22; H02P27/08
Domestic Patent References:
| JP2003102181A | ||||
| JP2004297851A | ||||
| JP2005341746A |
Attorney, Agent or Firm:
Yuichi Morita