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Development of an automatic steam generator level control logic at low power operations

Technical Report:

Abstract

The main objective of this research is to develop a new feedwater control logic for Ulchin Nuclear Power Plant Unit 3{approx_equal}4 (UCN 3{approx_equal}4) by incorporating the steam generator level control concept utilized in the UCN 1{approx_equal}2 which have demonstrated their capability of automatic level control at low power levels. The new control concepts adopted from UCN 1{approx_equal}2 are the steam generator level compensation by the feedwater temperature, the variable level setpoint program according to the turbine power, and the two element control scheme at low power levels. The results demonstrated that a stable steam generator level control is possible with the new feedwater control logic at power levels lower than 15%. Therefore, it is highly possible to improve the performance and safety of the UCN 3{approx_equal}4 provided that a further research develops a complete feedwater control system logic applicable to the entire power range and investigates the impact of adopting the new control logic on the system design. (Author).
Authors:
Seo, Jong Tae; Sohn, Jong Joo; Seo, Ho Taek; Ko, Chang Seog; Kim, Chong Hoon; Ro, Tae Sun [1] 
  1. Korea Atomic Energy Res. Inst., Taejon (Korea, Republic of)
Publication Date:
May 01, 1993
Product Type:
Technical Report
Report Number:
KAERI/TR-345/93
Reference Number:
SCA: 220200; 220400; PA: AIX-25:006523; EDB-94:012532; ERA-19:006656; NTS-94:015056; SN: 94001126473
Resource Relation:
Other Information: PBD: May 1993
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; STEAM GENERATORS; CONTROL THEORY; AUTOMATION; COMPUTER CODES; CONTROL SYSTEMS; FEEDWATER; LOGIC CIRCUITS; 220200; 220400; COMPONENTS AND ACCESSORIES
OSTI ID:
10112992
Research Organizations:
Korea Atomic Energy Research Inst., Daeduk (Korea, Republic of)
Country of Origin:
Korea, Republic of
Language:
Korean
Other Identifying Numbers:
Other: ON: DE94610780; TRN: KR9300157006523
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
70 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Seo, Jong Tae, Sohn, Jong Joo, Seo, Ho Taek, Ko, Chang Seog, Kim, Chong Hoon, and Ro, Tae Sun. Development of an automatic steam generator level control logic at low power operations. Korea, Republic of: N. p., 1993. Web.
Seo, Jong Tae, Sohn, Jong Joo, Seo, Ho Taek, Ko, Chang Seog, Kim, Chong Hoon, & Ro, Tae Sun. Development of an automatic steam generator level control logic at low power operations. Korea, Republic of.
Seo, Jong Tae, Sohn, Jong Joo, Seo, Ho Taek, Ko, Chang Seog, Kim, Chong Hoon, and Ro, Tae Sun. 1993. "Development of an automatic steam generator level control logic at low power operations." Korea, Republic of.
@misc{etde_10112992,
title = {Development of an automatic steam generator level control logic at low power operations}
author = {Seo, Jong Tae, Sohn, Jong Joo, Seo, Ho Taek, Ko, Chang Seog, Kim, Chong Hoon, and Ro, Tae Sun}
abstractNote = {The main objective of this research is to develop a new feedwater control logic for Ulchin Nuclear Power Plant Unit 3{approx_equal}4 (UCN 3{approx_equal}4) by incorporating the steam generator level control concept utilized in the UCN 1{approx_equal}2 which have demonstrated their capability of automatic level control at low power levels. The new control concepts adopted from UCN 1{approx_equal}2 are the steam generator level compensation by the feedwater temperature, the variable level setpoint program according to the turbine power, and the two element control scheme at low power levels. The results demonstrated that a stable steam generator level control is possible with the new feedwater control logic at power levels lower than 15%. Therefore, it is highly possible to improve the performance and safety of the UCN 3{approx_equal}4 provided that a further research develops a complete feedwater control system logic applicable to the entire power range and investigates the impact of adopting the new control logic on the system design. (Author).}
place = {Korea, Republic of}
year = {1993}
month = {May}
}