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1. (WO2015045546) FACILITY LOAD SELECTION DEVICE AND FACILITY LOAD SELECTION METHOD

Pub. No.:    WO/2015/045546    International Application No.:    PCT/JP2014/067859
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Sat Jul 05 01:59:59 CEST 2014
IPC: H02J 9/06
H02J 3/38
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: SUZUKI Katsuyuki
鈴木 勝幸
Title: FACILITY LOAD SELECTION DEVICE AND FACILITY LOAD SELECTION METHOD
Abstract:
When loads are dispersedly disposed in a large area as is the case with a factory or building, because the timing at which an inrush current to an individual load, such as a lighting device, occurs upon recovery from a power failure varies, it is difficult to estimate an inrush current that occurs in a storage battery inverter circuit, and it is thus also difficult to select loads in accordance with the specifications of the storage battery inverter circuit. In the present invention, upon recovery from a power failure, an inrush current to the storage battery inverter circuit is estimated by using inrush currents of the respective individual loads and occurrence time probability distribution data on the loads, and loads to be cut off are selected from among the respective individual loads on the basis of the estimation such that the inrush current to the storage battery inverter circuit becomes lower than a predetermined value.