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Patent Searching and Data


Title:
POWER CONVERTER, D.C. ELECTRIC POWER TRANSMISSION SYSTEM USING IT, AND POWER STORAGE SYSTEM
Document Type and Number:
Japanese Patent JP2009238966
Kind Code:
A
Abstract:

To provide an A.C./D.C. converter can reduce power loss and facilitate miniaturization.

This A.C./D.C. converter is provided with: a D.C. winding 1; a D.C. iron core 3 for winding the D.C. winding 1 around it; an A.C. iron core 5 connected to both ends of the D.C. iron core 3 to constitute two closed magnetic paths passing through the D.C. iron core 3; an A.C. winding 4 wound around the A.C. iron core 5; and a bias winding 2 wound around either the A.C. iron core 4 or the D.C. iron core 3, and running bias D.C. magnetic flux 17 so that a magnetic flux sum flowing through the iron cores always becomes a magnetic saturation point. A part of the iron core where the direction of the magnetic flux of an A.C. magnetic flux component superposed on the closed magnetic path and the direction of the bias D.C. magnetic flux are set in the same direction is formed into a magnetic saturation region 8 exceeding the magnetic saturation point, a part of the iron core where the magnetic flux directions are set opposite to each other is formed into an unsaturated region 9 falling below the magnetic saturation point, and a commutation phenomenon is caused by alternately changing over the passage magnetic path of mutual magnetic flux 10 where a change component of the A.C. magnetic flux component appears as it.


Inventors:
UEDA KIYOTAKA
Application Number:
JP2008082253A
Publication Date:
October 15, 2009
Filing Date:
March 26, 2008
Export Citation:
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Assignee:
UEDA KIYOTAKA
International Classes:
H01F29/14; H01F30/00; H01F36/00
Attorney, Agent or Firm:
Kazumi Murase