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Patent Searching and Data


Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/115090
Kind Code:
A1
Abstract:
[Problem] The purpose of the present invention is to provide a power conversion device making it possible to extract considerable power from a solar cell even during low solar radiation. [Solution] A power conversion device provided with a step-up circuit (4) for stepping up an output voltage of a solar cell (1) and an inverter circuit (5) for converting the direct current power stepped up by the step-up circuit (4) to an alternating current power and superimposing the alternating current power onto a commercial power system (3) is characterized in that the step-up circuit (4) runs a first step-up operation so that the output voltage of the solar cell (1) reaches a target voltage value (Vm), and alters the target voltage value (Vm) every time a predetermined period of time (Th) has elapsed since the start of the first step-up operation.

Inventors:
NORITAKE YOSHINORI (JP)
KAMIMURA TSUYOSHI (JP)
YAMAGISHI KIYOMA (JP)
OGAWA TOMOHIRO (JP)
SHIRAKAWA TAKASHI (JP)
ISHIDA TAKEO (JP)
Application Number:
PCT/JP2013/051562
Publication Date:
August 08, 2013
Filing Date:
January 25, 2013
Export Citation:
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Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H02M3/155; G05F1/67; H02J3/38; H02M7/48
Domestic Patent References:
WO2011090210A12011-07-28
Foreign References:
JP2001060119A2001-03-06
JP2000020149A2000-01-21
JPH0962386A1997-03-07
Other References:
See also references of EP 2811636A4
Attorney, Agent or Firm:
NAITO, HIROKI (JP)
Hiroki Naito (JP)
Download PDF:
Claims: