Title:
POWER SYSTEM STABILIZING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/239638
Kind Code:
A1
Abstract:
Provided is a power system stabilizing system that can supply a large amount of reactive power to a system quickly from a power system stabilizing system during a disturbance state, making it possible to suppress a decrease in the system voltage, and to suppress loss of the power supply. This power system stabilizing system comprises: a power conversion unit that converts input power to AC power; a control unit that controls the power conversion unit; and a system disturbance detection unit that detects a disturbance of the power system and outputs system disturbance information, wherein the control unit is configured so as to decrease the switching frequency of the power conversion unit based on the system disturbance information.
Inventors:
IKARASHI DAISUKE (JP)
ITO TOMOMICHI (JP)
KIKUCHI AKIRA (JP)
ITO TOMOMICHI (JP)
KIKUCHI AKIRA (JP)
Application Number:
PCT/JP2019/006514
Publication Date:
December 19, 2019
Filing Date:
February 21, 2019
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H02J3/32; H02J3/16
Foreign References:
| JP2013201870A | 2013-10-03 | |||
| JP2011167014A | 2011-08-25 | |||
| JP2014042381A | 2014-03-06 | |||
| JP2017070116A | 2017-04-06 | |||
| JP6169459B2 | 2017-07-26 |
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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