US 12,334,740 B2
Power distribution apparatus, power distribution method, and computer-readable medium
Ryohei Suzuki, Hachiouji (JP)
Assigned to FUJI ELECTRIC CO., LTD., Kanagawa (JP)
Filed by FUJI ELECTRIC CO., LTD., Kawasaki (JP)
Filed on Oct. 25, 2021, as Appl. No. 17/452,070.
Claims priority of application No. 2020-188343 (JP), filed on Nov. 11, 2020.
Prior Publication US 2022/0149631 A1, May 12, 2022
Int. Cl. H02J 3/38 (2006.01); H02J 3/46 (2006.01)
CPC H02J 3/381 (2013.01) [H02J 3/466 (2020.01); H02J 2203/20 (2020.01); H02J 2300/28 (2020.01)] 13 Claims
OG exemplary drawing
 
1. A power distribution apparatus comprising at least one processor, wherein:
the at least one processor calculates, for a plurality of distributed power supplies connected to an electric power system, active power and reactive power to be outputted from each of the plurality of distributed power supplies;
the at least one processor estimates, based on a past operation history of each of the plurality of distributed power supplies, an output range of electrical power that can be outputted from each of the plurality of distributed power supplies in the future;
the at least one processor calculates, based on the output range, the active power and the reactive power of each of the plurality of distributed power supplies, which can satisfy a predetermined objective condition and predetermined constraint condition,
wherein the predetermined objective condition includes a condition where a sum of a power transmission loss in the electric power system and an output suppression amount for electrical power of each of the plurality of distributed power supplies is minimized,
wherein the predetermined constraint condition includes at least one of
a condition where a voltage at a connection point between respective inverters and the electric power system is equal to or more than a predetermined lower limit value and equal to or less than a predetermined upper limit value and
electrical power to be outputted from each of the plurality of distributed power supplies in the future as an uncertain parameter that varies within the output range, and
wherein the power distribution apparatus realizes power distribution that minimizes power transmission loss and output suppression amount.