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Patent Searching and Data


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)
Application Number:
PCT/JP2018/009174
Publication Date:
September 12, 2019
Filing Date:
March 09, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
TOSHIBA MITSUBISHI ELEC IND (JP)
International Classes:
H02M7/12; H02M5/458; H02M7/25; H02M7/797
Foreign References:
JPH0746846A1995-02-14
US20100328970A12010-12-30
JP2015012769A2015-01-19
JP2002165447A2002-06-07
JPH1141931A1999-02-12
JP2013211970A2013-10-10
JP2012080765A2012-04-19
EP2916447A12015-09-09
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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