POWER SYSTEM STATE ESTIMATION DEVICE AND POWER SYSTEM USING SAME

WIPO Patent Application WO/2013/046938

A1

In order to appropriately monitor the state of the whole power system, a power system state estimation device estimates the power state at an arbitrary point in the power system at a high accuracy. The power system state estimation device comprises: a power system data database for holding node information indicating the positions in the power system and equipment information including sensors in correspondence to each other; a sensor data database for holding sensor outputs; an estimation environment setting unit for, using the information in the power system data database, determining a sensor used when estimating the power state at a specific node; and a state estimation unit for obtaining, from the sensor data database, the sensor output corresponding to the sensor used at the specific node determined by the estimation environment setting unit and estimating the state of the whole power system. The estimation environment setting unit includes: a sensor specifying unit for specifying that the sensor installed in the power system is a sensor exhibiting a specific tendency; and a sensor changing unit for changing a sensor to be used at the node corresponding to the specified sensor.

YAMANE KENICHIRO (JP)
WATANABE MASAHIRO (JP)
ADACHI MASAHIRO (JP)
MINAMI MASAHIRO (JP)
MATSUURA YASUO (JP)
MORITA TOMOHIKO (JP)

PCT/JP2012/070063

April 04, 2013

August 07, 2012

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HITACHI LTD (JP)
KANSAI ELECTRIC POWER CO (JP)
YAMANE KENICHIRO (JP)
WATANABE MASAHIRO (JP)
ADACHI MASAHIRO (JP)
MINAMI MASAHIRO (JP)
MATSUURA YASUO (JP)
MORITA TOMOHIKO (JP)

H02J3/00

JP2008154418A	2008-07-03
JP2006087177A	2006-03-30

See also references of EP 2763261A4

POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)

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