Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/196013
Kind Code:
A1
Abstract:
A power conversion device comprises: transformers (20n) each equipped with primary windings connected to input terminals (R, S, T) and secondary windings consisting of a plurality of single-phase open windings insulated from each other; a plurality of converter cells (30Xn) connected to the secondary windings of the transformers (20n); and a control circuit (601) for controlling the turning on and off of switching elements. The converter cells (30Xn) each comprise a converter (3a) and an inverter (3b), both including the switching elements. The converter cells (30Xn) have input ends connected to the respective single-phase open windings, thereby being connected through the transformers (20n) in parallel with each other with respect to the input terminals (R, S, T) of the respective phases and have output ends connected in series with each other with respect to output terminals (U, V, W) of the respective phases, thereby performing a three or more level voltage conversion.

Inventors:
JIMICHI Takushi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
AZUMA Satoshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
KOYANAGI Kimiyuki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
NAKAMURA Ritaka (13-16 MITA3-CHOME, MINATO-K, Tokyo 73, 〒1080073, JP)
SHIMOMURA Yasuhito (13-16 MITA3-CHOME, MINATO-K, Tokyo 73, 〒1080073, JP)
KATO Yoshihito (13-16 MITA3-CHOME, MINATO-K, Tokyo 73, 〒1080073, JP)
Application Number:
JP2013/065429
Publication Date:
December 11, 2014
Filing Date:
June 04, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION (3-1-1, Kyobashi Chuo-k, Tokyo 31, 〒1040031, JP)
International Classes:
H02M5/458; H02M7/48
Foreign References:
JP2000228883A2000-08-15
JP2005045999A2005-02-17
JPH04271281A1992-09-28
JPH04188206A1992-07-06
JP2013042610A2013-02-28
US5625545A1997-04-29
JP3019655B22000-03-13
JP2009106081A2009-05-14
Other References:
See also references of EP 2835902A4
Attorney, Agent or Firm:
MURAKAMI Keigo et al. (35-8, Minamimukonoso 3-chome Amagasaki-sh, Hyogo 33, 〒6610033, JP)
Download PDF: