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Title:
POWER CONVERTING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2010/082265
Kind Code:
A1
Abstract:
A power converting apparatus configured by connecting single-phase sub-converters (4) in series to the AC input lines of the phases of a 3-phase main converter (3).  The control device (12) that controls the output of the power converter has a CPU which is configured as a current command computing unit (20) that: adjusts the DC voltage command of the main converter (3) so that the DC voltage of the sub-converters tracks a command; and creates an AC current command so that the DC voltage of the main converter (3) tracks the DC voltage command.  The control device (12) controls the AC current by switching the output voltage level of the AC side of the sub-converters (4) so as to minimize the deviation between the AC current command and the instantaneous value of the AC current.

Inventors:
MORI OSAMU (JP)
FUJII TOSHIYUKI (JP)
IWATA AKIHIKO (JP)
ISHIKAWA JUNICHIRO (JP)
YASUE MASANORI (JP)
KISHIDA YUKIMORI (JP)
Application Number:
PCT/JP2009/006488
Publication Date:
July 22, 2010
Filing Date:
December 01, 2009
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
MORI OSAMU (JP)
FUJII TOSHIYUKI (JP)
IWATA AKIHIKO (JP)
ISHIKAWA JUNICHIRO (JP)
YASUE MASANORI (JP)
KISHIDA YUKIMORI (JP)
International Classes:
H02M7/12; H02M5/44; H02M7/48; H02M7/5387; H02J3/01; H02M1/12
Domestic Patent References:
WO2007129456A12007-11-15
Foreign References:
JP2008306805A2008-12-18
JP2007282442A2007-10-25
JP2007174723A2007-07-05
JPH07123722A1995-05-12
JPH10210659A1998-08-07
Attorney, Agent or Firm:
MURAKAMI, Keigo et al. (JP)
Keigo Murakami (JP)
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