Simulation and Analysis of Steam Generator Water Level Based on Nonlinear Level Model

Author

Bao, Jie ; Sun, Baozhi ; Zhang, Guolei

Author_Institution

Coll. of Power & Energy Eng., Harbin Eng. Univ., Harbin, China

fYear

2012

fDate

27-29 March 2012

Firstpage

1

Lastpage

4

Abstract

Based on the model of 55/19B Steam Generator (SG) in Daya Bay Nuclear Power Station, the original mathematical model of rising section of the SG has been improved , which combined with a nonlinear equation of water level. The simulation of steady and transient state of the SG integral model is carried out by Matlab/Simulink. The results at three loads (100%, 70% and 30%) show that the errors of SG main parameters are all less than 3%, which verifies the accuracy of the model. Meanwhile, the phenomena of "false water level" in the SG is described correctly at 10% step reduction of coolant flow rate in primary side and 5% step increase of steam consumption respectively. The effects of the above two disturbances on the dynamic characteristics of the SG water level is analyzed. The results show that the improved model can be used to analyze and predict accurately the dynamics characteristic of the SG water level.

Keywords

boilers; mathematical analysis; nonlinear equations; nuclear power stations; power consumption; Daya Bay nuclear power station; Matlab-Simulink; SG integral model; SG main parameters; SG water level; coolant flow rate; false water level; mathematical model; nonlinear level model-based steam generator water level; steam consumption; transient state; water level nonlinear equation; Analytical models; Data models; Generators; Load modeling; Mathematical model; Predictive models; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2012 Asia-Pacific

Conference_Location

Shanghai

ISSN

2157-4839

Print_ISBN

978-1-4577-0545-8

Type

conf

DOI

10.1109/APPEEC.2012.6306973

Filename

6306973