US 12,348,034 B2
Power system stabilizing system
Yukina Morimoto, Tokyo (JP); Akira Ishibashi, Tokyo (JP); and Hiroshi Iwaki, Tokyo (JP)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Energy Systems & Solutions Corporation, Kawasaki (JP)
Filed by Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Energy Systems & Solutions Corporation, Kawasaki (JP)
Filed on Jan. 3, 2023, as Appl. No. 18/149,424.
Application 18/149,424 is a continuation of application No. PCT/JP2021/029336, filed on Aug. 6, 2021.
Claims priority of application No. 2020-142998 (JP), filed on Aug. 26, 2020.
Prior Publication US 2023/0155379 A1, May 18, 2023
Int. Cl. H02J 3/38 (2006.01); H02J 3/00 (2006.01)
CPC H02J 3/0012 (2020.01) [H02J 3/00125 (2020.01); H02J 3/007 (2020.01); H02J 3/38 (2013.01); H02J 3/381 (2013.01); H02J 3/388 (2020.01); H02J 2300/22 (2020.01)] 10 Claims
OG exemplary drawing
 
1. A power system stabilizing system comprising:
an accident detector configured to detect a system accident of a power system;
a power restriction target selector configured to select power restriction targets which are required for stability maintenance of the power system out of a plurality of power supplies included in the power system or connected to the power system according to a type of the system accident detected by the accident detector;
a cutoff controller configured to cut off the power restriction targets selected by the power restriction target selector;
a system restoration checker configured to check that the power system has been restored from the system accident on the basis of system information of the power system;
a reconnection controller configured to reconnect some or all of the power restriction targets cut off by the cutoff controller when the system restoration checker checks that the power system has been restored from the system accident; and
a disconnected power supply detector configured to detect disconnected power supplies other than the power restriction targets out of the plurality of power supplies,
wherein the reconnection controller is configured to reconnect some or all of the power supplies detected by the disconnected power supply detector as the reconnection targets in addition to the power restriction targets cut off by the cutoff controller.