Title:
POWER CONTROL SYSTEM AND CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/225208
Kind Code:
A1
Abstract:
A power system is provided with: a self-excited power converter (2) including a first arm (5) and a second arm (6) each having one or more switching elements (22A, 22B) and performing power conversion between a DC system (14) and an AC system (80); a first breakers (41, 42) for interrupting the current flowing through a power transmission line (L) provided between a first bus line (18) and a second bus line (19) of the AC system; a first breaker control unit (206) for controlling the first breakers on the basis of the amount of electricity of the power transmission line; a converter control unit (112) for stopping the one or more switching elements on the basis of the current value of the first arm and the current value of the second arm; and a setting unit (120) for setting the voltage value of the AC voltage output from the power converter so that the first breakers are opened without the one or more switching elements being stopped when an accident occurs in the power transmission line. The converter control unit operates the one or more switching elements so that the AC voltage having the set voltage value is output.
Inventors:
ISHIDA KEISUKE (JP)
FUJISAWA TAKAYUKI (JP)
FUJISAWA TAKAYUKI (JP)
Application Number:
PCT/JP2017/021286
Publication Date:
December 13, 2018
Filing Date:
June 08, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02J3/36
Foreign References:
| JP2013179781A | 2013-09-09 | |||
| JPH07203631A | 1995-08-04 | |||
| JP2000287457A | 2000-10-13 | |||
| JP2012161163A | 2012-08-23 |
Other References:
IEEE POWER & ENERGY MAGAZINE, 17 December 2013 (2013-12-17), pages 44 - 53
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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