ELECTRIC POWER SYSTEM MONITORING DEVICE AND ELECTRIC POWER SYSTEM MONITORING SYSTEM

Title:

ELECTRIC POWER SYSTEM MONITORING DEVICE AND ELECTRIC POWER SYSTEM MONITORING SYSTEM

Document Type and Number:

WIPO Patent Application WO/2016/047203

Kind Code:

A1

Abstract:

The present invention monitors an electric power system using a time-series measurement value including abnormality. An electric power system monitoring device is provided with: a storage unit that stores facility information indicating a position relationship of a plurality of measurement sites in an electric power system; a reception unit that receives time-series measurement information measured by a measurement device disposed at each of the plurality of measurement sites; and a computation unit that acquires an electrical distance between the plurality of measurement sites on the basis of the facility information, classifies the plurality of measurement sites into at least one measurement site group on the basis of the electrical distance, extracts, with respect to each of the measurement sites in the measurement site group, a frequency component of electric power fluctuation from the measurement information, selects, with respect to a first frequency component which is a frequency component of a first measurement site in the measurement site group, a second frequency component which is a frequency component of a second measurement site in the measurement site group, and calculates a similarity between the first frequency component and the second frequency component.

Inventors:

YAMAZAKI JUN (JP)
YATSU MASAHIRO (JP)
TOBE SUMITO (JP)
TOMOBE OSAMU (JP)
INUDUKA TATSUKI (JP)

Application Number:

PCT/JP2015/065365

Publication Date:

March 31, 2016

Filing Date:

May 28, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HITACHI LTD (JP)

International Classes:

H02J13/00; H02J3/24

Foreign References:

JPH1056735A	1998-02-24
JPH06133460A	1994-05-13

Other References: