Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/003290
Kind Code:
A1
Abstract:
This power conversion device is provided with a plurality of converter cells (7) cascaded with each other. In each of the converter cells (7), a plurality of arms (31; 34) constituting a bridge circuit (30) are each provided with a plurality of semiconductor switching elements (32A, 32B; 35A, 35B) in parallel. A drive control unit (50) of each of the converter cells (7) is configured to control the bridge circuit (30) in accordance with a command given from the outside when none of a plurality of predetermined abnormality modes is being detected. The drive control unit (50) is configured to, when at least one of the plurality of abnormality modes is detected, short-circuit between first and second input/output nodes (25p, 25n) by turning on all the semiconductor switching elements (35A, 35B) provided in at least one (34) of the plurality of arms (31, 34) constituting the bridge circuit (30).
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Inventors:
TAKAHASHI TATSUYA (JP)
HAYASHI SHIGEO (JP)
HAYASHI SHIGEO (JP)
Application Number:
PCT/JP2017/023496
Publication Date:
January 03, 2019
Filing Date:
June 27, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02M7/48; H02M7/483
Domestic Patent References:
| WO2015133365A1 | 2015-09-11 | |||
| WO2016167117A1 | 2016-10-20 | |||
| WO2014148100A1 | 2014-09-25 |
Foreign References:
| JP2015115977A | 2015-06-22 |
Other References:
See also references of EP 3648331A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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