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Title:
POWER SYSTEM MONITORING DEVICE, POWER SYSTEM MONITORING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/097672
Kind Code:
A1
Abstract:
Provided are a power system monitoring device, a power system monitoring method, and a program with which it is possible to monitor power system voltage stability with high speed and accuracy. The power system monitoring device (10) is provided with: a model-based voltage stability monitoring calculation unit (31) which performs a model-based voltage stability monitoring calculation for evaluating model-based voltage stability on the basis of low-speed wide-area measurement information obtained from a measurement device that collects wide-area system information; a measurement-based voltage stability monitoring calculation unit (32) which performs a measurement-based voltage stability monitoring calculation on the basis of high-speed local measurement information obtained from a measurement device that collects local system information with a short cycle; a voltage stability curve correction calculation unit (33) which performs, in synchronization with the cycle of the measurement device that collects local system information with the short cycle, a correction calculation for correcting a voltage stability curve; and a correction parameter calculation unit (34) which calculates a correction parameter for correcting a constituent element of a power system model by calculating back from the corrected voltage stability curve.

Inventors:
KAWAKITA Kenedward (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
KATO Daichi (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
YAMAZAKI Jun (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
Application Number:
JP2017/041455
Publication Date:
May 23, 2019
Filing Date:
November 17, 2017
Export Citation:
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Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
International Classes:
H02J3/00; H02J13/00
Foreign References:
JP2017112709A2017-06-22
JP2016167904A2016-09-15
JP2015211512A2015-11-24
JP2001025168A2001-01-26
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (Hulic Toranomon Building, 1-18 Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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