Kepco Engineering & Construction Company, Inc.

Ung Soo Kim

Min Soo Park

Ju Han Lee

In Ho Song

Jae Young Huh

Gyu Cheon Lee

Myung Jun Song

Jong Joo Sohn

Byung Heon Hwang

Kyoung Ryun Kim

Eun Kee Kim

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.

System of controlling steam generator level during main feed-water control valve transfer for nuclear power plant

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Daejeon, South Korea

Ung Soo Kim