Title:
電力変換装置及び電力変換方法
Document Type and Number:
Japanese Patent JP7070004
Kind Code:
B2
Abstract:
A power conversion device includes three inverters configured to convert DC power of DC buses into single-phase AC power, and a controller configured to control the three inverters so as to generate three-phase AC power. The controller is configured to generate a fundamental wave command for generating one-phase AC power constituting the three-phase AC power, and to generate an adjustment wave command having triple the frequency of the fundamental wave command. Additionally, the controller is configured to output a phase voltage command, in which the adjustment wave command is superimposed on the fundamental wave command, and to determine an initial phase of the adjustment wave command to be offset from an initial phase of the fundamental wave command so as to reduce a voltage ripple occurring in the DC buses at double the frequency of the fundamental wave command.
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| WO/1993/023913 | OPTIMIZED HIGH POWER VOLTAGE SOURCED INVERTER SYSTEM |
| WO/2018/024977 | METHOD FOR CONTROLLING A MULTI-LEVEL MODULAR CONVERTER |
| WO/1999/041828 | HYBRID TOPOLOGY FOR MULTILEVEL POWER CONVERSION |
Inventors:
Satoshi Watanabe
Taisuke Katayama
Taisuke Katayama
Application Number:
JP2018077533A
Publication Date:
May 18, 2022
Filing Date:
April 13, 2018
Export Citation:
Assignee:
Yaskawa Electric Co., Ltd.
International Classes:
H02M7/49
Domestic Patent References:
| JP201454174A | ||||
| JP2003284350A | ||||
| JP2003250298A | ||||
| JP201654594A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Shigeki Matsuo
Yoshiki Kuroki
Shigeki Matsuo