US 11,990,759 B2
Power management system
Norihiro Takai, Tokyo (JP); Akira Takami, Tokyo (JP); Masato Kotake, Tokyo (JP); and Seiichi Nakajima, Tokyo (JP)
Assigned to IHI CORPORATION, Tokyo (JP)
Appl. No. 17/600,297
Filed by IHI Corporation, Tokyo (JP)
PCT Filed Mar. 30, 2020, PCT No. PCT/JP2020/014654
§ 371(c)(1), (2) Date Sep. 30, 2021,
PCT Pub. No. WO2020/203993, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-071279 (JP), filed on Apr. 3, 2019; application No. 2019-071281 (JP), filed on Apr. 3, 2019; application No. 2019-071282 (JP), filed on Apr. 3, 2019; and application No. 2019-071285 (JP), filed on Apr. 3, 2019.
Prior Publication US 2022/0209539 A1, Jun. 30, 2022
Int. Cl. H02J 3/38 (2006.01); G05B 13/02 (2006.01); H02J 3/00 (2006.01); H02J 3/28 (2006.01)
CPC H02J 3/381 (2013.01) [G05B 13/021 (2013.01); H02J 3/004 (2020.01); H02J 3/28 (2013.01); H02J 2300/24 (2020.01)] 12 Claims
OG exemplary drawing
 
1. An electric power management system adjusting actual generation electric power output by an electric power generation facility including a solar power generation device, and load electric power consumed by a load facility that is connected to the electric power generation facility, the electric power management system comprising:
a solar radiation amount measurement device that is provided adjacent to the solar power generation device and measures a solar radiation amount received by the solar power generation device; and
a control device that outputs a control command including a command for the load facility,
wherein the control device includes
a pre-processing unit that outputs information used to generate the control command, and
a command generation unit that outputs the control command, on the basis of the information output by the pre-processing unit,
the pre-processing unit includes a prediction unit that outputs electric power expected to be output by the electric power generation facility as estimated generation electric power, on the basis of the solar radiation amount, and
the command generation unit includes a load command unit that outputs the control command including a command for increasing and decreasing the load electric power to the load facility, on the basis of the estimated generation electric power, and
an electric power grid connection device that connects the electric power generation facility and the load facility to an electric power grid and measures reverse flow electric power flowing to the electric power grid,
wherein the load command unit outputs the control command, on the basis of the reverse flow electric power and a reverse electric power flow threshold value, and
wherein the reverse electric power flow threshold value is set in accordance with a value obtained by dividing the actual generation electric power by the number of solar power generation devices being operated in the electric power generation facility.