Title:
電力変換装置および電力システム
Document Type and Number:
Japanese Patent JP6526344
Kind Code:
B2
Abstract:
When a short-circuit between DC lines (13P, 13N) is detected, a control device (50) of a power conversion device (100) performs protection control to turn off semiconductor switching elements (21s, 22s, 31s, 32s, 34s) in a power converter (1), and when elimination of the short-circuit between the DC lines (13P, 13N) is detected, the control device (50) performs restart control of the power converter (1) by giving a voltage command value for causing negative-polarity current in flowing through a diode (33) in an upper arm of a second series body (36) of a second converter cell (20) to flow to a phase arm (4), to each converter cell in first and second arms.
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Inventors:
Ken Kikuchi
Toshiyuki Fujii
Ryosuke Uda
Toshiyuki Fujii
Ryosuke Uda
Application Number:
JP2018539524A
Publication Date:
June 05, 2019
Filing Date:
June 07, 2017
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02M7/49; H02M7/12; H02M7/48
Domestic Patent References:
| JP2013121223A |
Foreign References:
| WO2015098146A1 |
Attorney, Agent or Firm:
Keigo Murakami
Masuo Oiwa
Kenji Yoshizawa
Takenaka Ikuo
Masuo Oiwa
Kenji Yoshizawa
Takenaka Ikuo