Title:
電力変換装置
Document Type and Number:
Japanese Patent JP6470051
Kind Code:
B2
Abstract:
An inexpensive, compact, and highly reliable power conversion device that eliminates a harmonic current which is to be output accidentally and which strains a power system is provided. A three-phase and three-winding transformer A has a neutral point of a secondary winding in each phase connected to that of a tertiary winding in the same phase. A leg including two self-extinguishing switching elements connected in series is connected in parallel with a capacitor to form a unit module C, and positive-side unit arms Up, Vp, and Wp, and negative-side unit arms Un, Vn, and Wn each have the two unit modules C connected in series. The positive-side unit arm has one end connected to the positive side of the DC power supply B, and the other end connected to the output terminal of the secondary winding of the three-phase and three-winding transformer A in each phase. The negative-side unit arm has one end connected to the negative side of the DC power supply B, and has the other end connected to the output terminal of the tertiary winding of the three-phase and three-winding transformer A in each phase.
Inventors:
Yosuke Nakazawa
Arai Takuro
Ryuta Hasegawa
Shunsuke Tamada
Sekiguchi Kei
Suzuki Daichi
Arai Takuro
Ryuta Hasegawa
Shunsuke Tamada
Sekiguchi Kei
Suzuki Daichi
Application Number:
JP2015009781A
Publication Date:
February 13, 2019
Filing Date:
January 21, 2015
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Energy Systems Co., Ltd.
Toshiba Energy Systems Co., Ltd.
International Classes:
H02M7/12; H02M7/48
Domestic Patent References:
| JP2001210533A | ||||
| JP2013115837A |
Foreign References:
| WO2013108376A1 | ||||
| EP2760123A2 |
Attorney, Agent or Firm:
Kiuchi Mitsuharu