Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/171568
Kind Code:
A1
Abstract:
This power conversion device (10) is provided with: a transformer (20); a plurality of converter cells (30); a control circuit (400) which controls the switching on/off of semiconductor switching elements in the converter cells. The transformer (20) has: a primary winding group (PRW) multi-phase connected to an AC power source (101) having multiple phases; and a plurality of secondary winding groups (SDW1, SDW2). Each of the secondary winding groups (SDW1, SDW2) has a secondary winding of the respective phases and configured of a single-phase open winding. Each of the converter cells (30) converts a single-phase AC voltage between AC nodes connected to each secondary winding to a DC voltage through the on/off-control of the semiconductor switching element and outputs the converted voltage between a pair of DC nodes. DC nodes of the plurality of converter cells (30) are connected in series between first and second DC terminals (102P, 102N).
Inventors:
TSURUTA RYOJI (JP)
SUZUKI HIROMITSU (JP)
OKA TOSHIAKI (JP)
NAKAMURA RITAKA (JP)
NAKAMURA MASASHI (JP)
SUZUKI HIROMITSU (JP)
OKA TOSHIAKI (JP)
NAKAMURA RITAKA (JP)
NAKAMURA MASASHI (JP)
Application Number:
PCT/JP2018/009174
Publication Date:
September 12, 2019
Filing Date:
March 09, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
TOSHIBA MITSUBISHI ELEC IND (JP)
TOSHIBA MITSUBISHI ELEC IND (JP)
International Classes:
H02M7/12; H02M5/458; H02M7/25; H02M7/797
Foreign References:
JPH0746846A | 1995-02-14 | |||
US20100328970A1 | 2010-12-30 | |||
JP2015012769A | 2015-01-19 | |||
JP2002165447A | 2002-06-07 | |||
JPH1141931A | 1999-02-12 | |||
JP2013211970A | 2013-10-10 | |||
JP2012080765A | 2012-04-19 | |||
EP2916447A1 | 2015-09-09 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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