Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ELECTRIC POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/005792
Kind Code:
A1
Abstract:
In the present invention, in a plurality of electric power conversion devices that are connected in parallel, even when short circuit has occurred in one of the electric power conversion devices, another of the plurality of electric power conversion devices which is not short circuited can be restarted quickly. The electric power conversion devices are each provided with: a short circuit occurrence determination unit (33) that determines whether or not short circuit has occurred, on the basis of an electric current value of an output terminal (3a); a short circuit elimination determination unit (34) that determines whether or not short circuit has been eliminated, on the basis of a voltage value and the electric current value of the output terminal; and an electric current cutoff unit (32) that, on the basis of determination by the short circuit occurrence determination unit and determination by the short circuit elimination determination unit, cuts off an electric current flowing from an electric power conversion unit to the output terminal or cancels a cutoff of the electric current.

Inventors:
JIMICHI TAKUSHI (JP)
ISHIBASHI TAKAHARU (JP)
Application Number:
PCT/JP2019/027560
Publication Date:
January 14, 2021
Filing Date:
July 11, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02H7/12; H02M3/335; H02J1/10; H02M3/28
Domestic Patent References:
WO2017038742A12017-03-09
WO2017094379A12017-06-08
WO2007097012A12007-08-30
Foreign References:
JP2010039703A2010-02-18
JP2003284333A2003-10-03
JP2016537960A2016-12-01
Other References:
See also references of EP 3998700A4
Attorney, Agent or Firm:
OIWA Masuo et al. (JP)
Download PDF: