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:
Jul. 31, 2018
Filed:
Feb. 18, 2014
Applicant:
Kabushiki Kaisha Toshiba, Minato-Ku, JP;
Inventors:
Assignee:
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
G05D 7/06 (2006.01); F01D 21/06 (2006.01); F01K 13/02 (2006.01); F01K 7/16 (2006.01);
U.S. Cl.
CPC ...
G05D 7/0641 (2013.01); F01D 21/06 (2013.01); F01K 7/165 (2013.01); F01K 13/02 (2013.01); F05D 2220/31 (2013.01);
Abstract
A valve control system for a steam turbine that decrease in effective power as well as secure control stability in the event of an electric power system accident is provided. A valve control system for a steam turbine includes an accident detection unitwhich detects an occurrence of an electric power system accident, a first selection unitwhich selects, from a plurality of control valves() which adjust a volume of steam flowing into a steam turbine, control valvesto be rapidly closed according to a scale of the accident detected, and a normal control circuitwhich continues normal pressure or speed control by the control valveswhich are not selected.