Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/174123
Kind Code:
A1
Abstract:
A power conversion device comprises a rectifier circuit (2), a reactor (3), an inverter circuit (4), and an insulating transformer (6). The inverter circuit (4) is configured by connecting a first leg (A), a second leg (B), and a DC capacitor (5) in parallel between DC bus lines, wherein a first AC node (4a) of the first leg (A) is connected through the reactor (3) to a positive electrode side DC terminal (2a) of the rectifier circuit (2). A high power factor control is performed on current (iac) flowing through the rectifier circuit (2) from an AC power supply (1) by the PWM controlling of the first leg (A). The voltage (Vdc) of the DC capacitor (5) is controlled by the PWM controlling of the second leg (B) using a duty ratio less than or equal to the duty ratio of the first leg (A), thereby controlling the power output to the secondary side of the insulating transformer (6).
Inventors:
KONDO RYOTA (JP)
TAKAHARA TAKAAKI (JP)
MURAKAMI SATOSHI (JP)
YAMADA MASAKI (JP)
UEHARA NAOHISA (JP)
KINOSHITA HIDEHIKO (JP)
TAKAHARA TAKAAKI (JP)
MURAKAMI SATOSHI (JP)
YAMADA MASAKI (JP)
UEHARA NAOHISA (JP)
KINOSHITA HIDEHIKO (JP)
Application Number:
PCT/JP2015/056612
Publication Date:
November 19, 2015
Filing Date:
March 06, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M3/28; H02M7/12
Foreign References:
| JP2012249375A | 2012-12-13 | |||
| US20110149606A1 | 2011-06-23 | |||
| JPH11243646A | 1999-09-07 |
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (JP)
Keigo Murakami (JP)
Keigo Murakami (JP)
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