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Patent Searching and Data


Title:
POWER CONVERTER
Document Type and Number:
WIPO Patent Application WO/2012/060357
Kind Code:
A1
Abstract:
A resonance suppression control block (12) includes a high-pass filter (13) for extracting an alternating-current component (VdcAC) of a DC link voltage (Vdc) and a gain section (14) for outputting a correction signal (Vcmp) obtained by multiplying the alternating-current component (VdcAC) by a gain (K), and a control unit (7) controls an inverter (4) on the basis of a signal (V'*) obtained by adding the correction signal (Vcmp) to a voltage command (V*). This makes it possible to obtain a power converter which can suppress resonance of a DC link unit with a simple device and can save the labor for adjusting and resetting in accordance with a power supply frequency.

Inventors:
ISHIKAWA SHUTA (JP)
FURUTANI SHINICHI (JP)
KATO MASANORI (JP)
EGASHIRA YOICHI (JP)
KAWAUCHI YUKI (JP)
Application Number:
PCT/JP2011/075147
Publication Date:
May 10, 2012
Filing Date:
November 01, 2011
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
ISHIKAWA SHUTA (JP)
FURUTANI SHINICHI (JP)
KATO MASANORI (JP)
EGASHIRA YOICHI (JP)
KAWAUCHI YUKI (JP)
International Classes:
H02P27/06; H02M7/48
Foreign References:
JP2007181358A2007-07-12
JP2008113514A2008-05-15
JP2009017673A2009-01-22
JPH11299012A1999-10-29
JP2000116189A2000-04-21
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (JP)
Keigo Murakami (JP)
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Claims: