ELECTRIC POWER SYSTEM CONTROL DEVICE, ELECTRIC POWER SYSTEM, AND ELECTRIC POWER SYSTEM CONTROL METHOD

WIPO Patent Application WO/2015/045084

A1

The present invention reduces a power loss during charging/discharging of storage batteries. This electric power system control device, which is used for maintaining the supply-demand balance of an electric power system by controlling charging/discharging of storage batteries that are linked to the electric power system on the basis of a predicted frequency value of the electric power system in the next several seconds to several minutes, comprises: a frequency detection unit that calculates a frequency of the electric power system; a frequency prediction unit that predicts a frequency from the value of the frequency calculated by the frequency detection unit and history data comprising power generation/load supply-demand data; a charging/discharging amount determination unit that sets a charging/discharging amount corresponding to a value that is lower or higher than the predicted frequency value of the electric power system obtained by the frequency prediction unit and falls in a range not exceeding a lower limit value or upper limit value of the frequency, and determines charging/discharging amounts of the storage batteries on the basis of said value; and a control command unit that that transmits control commands to the storage batteries on the basis of the charging/discharging amount determination results of the charging/discharging amount determination unit.

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ISHIDA TAKAHARU (JP)
ANDOH SHINSUKE (JP)
SATOH HIROKI (JP)
KOBAYASHI HIDEYUKI (JP)
SHOJIKI KAZUYA (JP)

PCT/JP2013/076184

April 02, 2015

September 27, 2013

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HITACHI LTD (JP)

H02J3/00; H02J13/00; H02J3/32

WO2013132872A1

2013-09-12

JP2012016077A

2012-01-19

SEIRYO I. P. C. (JP)
青稜 patent business corporation (JP)

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