US 12,438,367 B2
Power system operation plan creation assistance device and method
Eisuke Kuroda, Tokyo (JP); Kunihiko Tsunedomi, Tokyo (JP); Daiki Nishimura, Tokyo (JP); Shinya Ohara, Tokyo (JP); and Yasuyuki Tada, Tokyo (JP)
Assigned to HITACHI, LTD., Tokyo (JP)
Appl. No. 18/038,123
Filed by Hitachi, Ltd., Tokyo (JP)
PCT Filed Jul. 19, 2021, PCT No. PCT/JP2021/026957
§ 371(c)(1), (2) Date May 22, 2023,
PCT Pub. No. WO2022/118495, PCT Pub. Date Jun. 9, 2022.
Claims priority of application No. 2020-201658 (JP), filed on Dec. 4, 2020.
Prior Publication US 2023/0420937 A1, Dec. 28, 2023
Int. Cl. H02J 3/00 (2006.01); H02J 3/38 (2006.01)
CPC H02J 3/003 (2020.01) [H02J 3/0012 (2020.01); H02J 3/004 (2020.01); H02J 3/381 (2013.01); H02J 2203/10 (2020.01); H02J 2203/20 (2020.01); H02J 2300/20 (2020.01)] 9 Claims
OG exemplary drawing
 
1. A power system operation plan creation assistance device characterized by comprising:
an optimization target snapshot power flow determining unit which determines snapshot power flows for which to execute optimization using one or more data sets of basic information comprising power generation plans, total demand predictions, sales plans, renewable energy resources predictions, outage plans, system data, and settings;
a system switching variable candidate extracting unit which extracts candidates of system switching variables using snapshot power flows for which to execute optimization determined by the optimization target snapshot power flow determining unit and one or more data sets of the basic information;
an optimal system configuration calculating unit which calculates optimal system configurations using system switching variable candidates extracted by the system switching variable candidate extracting unit and one or more data sets of the basic information;
a stability and economy evaluating unit which evaluates stability and economy using operation plans as optimal system configurations calculated by the optimal system configuration calculating unit and one or more data sets of the basic information; and
a display unit which displays on screen, evaluation results obtained by the stability and economy evaluating unit and the operation plans.