To provide a transformer multiple power converter in which outflow of harmonics to the system due to resonance of a DC circuit is suppressed, and the DC circuit can be made compact and simple by reducing the current duty thereof.
The power converter comprises: a plurality of transformer units 25-28 performing mutual conversion of polyphase AC power and DC power; a plurality of transformers 21-24; and a converter control unit 11. AC voltage terminals of the transformer units 25-28 are connected in series via the transformers 21-24, and interconnected with a power system 2. DC voltage terminals of the transformer units 25-28 are independent from each other. The converter control unit 11 controls each transformer unit 25-28 so that the DC voltage thereof has a predetermined level.
FUJII TOSHIYUKI
MORISHIMA NAOKI
AZUMA KOTARO
TOSHIBA MITSUBISHI ELEC INC
| JP2003033039A | 2003-01-31 | |||
| JPH10127065A | 1998-05-15 | |||
| JPH03139173A | 1991-06-13 | |||
| JP2008154444A | 2008-07-03 | |||
| JPH06276747A | 1994-09-30 |
Masuo Oiwa
Kenji Yoshizawa
Takenaka Ikuo