Title:
POWER CONVERSION DEVICE AND DC POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/207976
Kind Code:
A1
Abstract:
Provided is a power conversion device (5) used in a DC power transmission system having a multi-pole configuration, the power conversion device comprising: a self-exciting AC-DC converter (20) that converts power between an AC system and a main line (9); and a control unit (100). The control unit (100) receives input of a current value between DC terminals (41n-43n) of the AC-DC converter (20) and a neutral point (13), controls the operation of the AC-DC converter (20), and controls the opening/closing of a switch (12) provided between the DC terminals (41n-43n) and the neutral point (13). If the current value is equal to or greater than a predetermined threshold, the control unit (100) stops a plurality of cells (L1-L12) and then turns on a bypass switch. If the current value is equal to or greater than a predetermined threshold, the control unit (100) opens the switch (12).
Inventors:
ARAMAKI TAKUO (JP)
Application Number:
PCT/JP2015/068028
Publication Date:
December 29, 2016
Filing Date:
June 23, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02H7/12; H02J1/00
Foreign References:
| JP5622978B1 | 2014-11-12 | |||
| JPS5731332A | 1982-02-19 | |||
| JP5730458B1 | 2015-06-10 |
Other References:
See also references of EP 3316430A4
Attorney, Agent or Firm:
Fukami Patent Office, p. c. (JP)
Patent business corporation Fukami patent firm (JP)
Patent business corporation Fukami patent firm (JP)
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