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:
Aug. 19, 2014
Filed:
Dec. 30, 2010
Myung Jun Song, Daejeon, KR;
Jong Joo Sohn, Daejeon, KR;
IN Ho Song, Daejeon, KR;
Ju Han Lee, Daejeon, KR;
Byung Heon Hwang, Daejeon, KR;
Eun Kee Kim, Daejeon, KR;
Ung Soo Kim, Daejeon, KR;
Myung Jun Song, Daejeon, KR;
Jong Joo Sohn, Daejeon, KR;
In Ho Song, Daejeon, KR;
Ju Han Lee, Daejeon, KR;
Byung Heon Hwang, Daejeon, KR;
Eun Kee Kim, Daejeon, KR;
Ung Soo Kim, Daejeon, KR;
Kepco Engineering & Construction Company, Gyeonggi-do, KR;
Abstract
A system and a method of transforming a gain and an integral time constant of a proportional-integral (PI) controller according to a timer lapse time to relieve an excessive phenomenon of a steam generator level caused by rapid changes in open degrees of a downcomer feed-water valve and an economizer feed-water valve when reactor power transfers between low and high power sections. Accordingly, an excessive phenomenon of a steam generator level is relieved at a transfer time when reactor power transfers between low and high power sections. Therefore, a possibility of a stop of a reactor caused by the excessive phenomenon of the steam generator level is reduced to relieve burden on an operator and improve an operation rate and economic feasibility of a nuclear power plant.