Title:
ELECTRIC POWER CONVERSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/069750
Kind Code:
A1
Abstract:
An autonomous electric power converter (2) according to the present invention converts electric power between a three-phase AC system (12) and a DC system (14). A transformer (13) is connected, on a primary side thereof, to the AC system (12), and is connected, on a secondary side thereof, to the autonomous electric power converter (2), the secondary side being Y-connected. This impedance switching circuit (50) is electrically connected between ground and a neutral point (62) on the secondary side of the transformer (13). The impedance switching circuit (50) is configured such that the impedance is lower when a line ground fault occurs in three-phase AC wiring (64) that connects the transformer (13) and the autonomous electric power converter (2) than when no line ground fault occurs.
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Inventors:
PAGE FREDERICK (JP)
TAHATA KAZUYORI (JP)
UDA RYOSUKE (JP)
TAHATA KAZUYORI (JP)
UDA RYOSUKE (JP)
Application Number:
PCT/JP2022/035929
Publication Date:
April 04, 2024
Filing Date:
September 27, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02J3/36; H02H9/08
Domestic Patent References:
| WO2021024455A1 | 2021-02-11 |
Foreign References:
| JP2021016256A | 2021-02-12 | |||
| JPH10505999A | 1998-06-09 | |||
| JPH06284562A | 1994-10-07 | |||
| JP2016148650A | 2016-08-18 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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