Patent ID: 8578184
Filing Date: 2013-11-05
Classification: H02J

Abstract:
1. A power control system comprising: a plurality of power demanding facilities, a distribution unit including a first connection unit to which an external power system is connected and a second connection unit to which said plurality of power demanding facilities are connected, and a measurement unit measuring a value of running power that is power flowing between said power system and said distribution unit, said distribution unit distributing power supplied from said power system via said first connection unit to said plurality of power demanding facilities, each of said plurality of power demanding facilities including a power generation device generating and providing power generated by said power generation device to said second connection unit, and a power storage device having a storage battery connected, and receiving power supplied by said power system and distributed from said distribution unit, said power storage device performing a charging process of storing power received by said power storage device in the connected storage battery, and a discharging process of providing at least a portion of stored power from a relevant storage battery to said second connection unit, said power control system further comprising: a condition detection unit detecting whether a condition of (TLP<K1) is established or not, and a power control unit transmitting a power control instruction to said plurality of power demanding facilities when said condition detection unit detects that said condition is established, said TLP indicating a power of said running power flowing between the power system and the distribution unit measured by said measurement unit when a direction of said running power flowing from said power system towards said distribution unit is taken as a positive value, and said K1 indicating a threshold value used to detect reverse power flow indicative of said running power flowing from said distribution unit towards said power system, said power control instruction instructing said power storage device performing said discharging process to suppress an amount of power output from said storage battery, and instructing said power storage device performing said charging process to increase the amount of power charged in said storage battery.