The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 2021
Filed:
Oct. 06, 2017
Hitachi, Ltd., Tokyo, JP;
Kenta Kirihara, Tokyo, JP;
Nao Saito, Tokyo, JP;
Taichiro Kawahara, Tokyo, JP;
Masahiro Yatsu, Tokyo, JP;
HITACHI, LTD., Tokyo, JP;
Abstract
A system operation decision-making assistance device includes: a state mode clustering unit that calculates, on the basis of measurement data DBof a power system and a clustering parameter DB, which state mode, from among prescribed state modes, applies to a power system; a state mode collation unit that collates state transition data DBindicating transitions between state modes and the calculated state mode to calculate state transition probability data, which is the probability of transitioning from the calculated state mode to each state mode defined in the state transition data; and an accident shift pattern calculation unit that calculates important accident cases on the basis of a system model DB, an importance parameter DBincluding the importance of a power system accident, the measurement data, and the calculated state transition probability data.