• Engineering nonlinearity chara...

Treffer: Engineering nonlinearity characteristic compensation for commercial steam turbine control valve using linked MARS code and Matlab Simulink

Title:
Engineering nonlinearity characteristic compensation for commercial steam turbine control valve using linked MARS code and Matlab Simulink
Authors:
HALIMI, B, SUH, Kune Y
Source:
Nuclear engineering and design. 243:360-370
Publisher Information:
Amsterdam: Elsevier, 2012.
Publication Year:
2012
Physical Description:
print, 1/2 p
Original Material:
INIST-CNRS
Subject Terms:
Energy, Énergie, Metallurgy, welding, Métallurgie, soudage, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Energie, Energy, Combustibles, Fuels, Combustibles nucléaires, Nuclear fuels, Energie. Utilisation thermique des combustibles, Energy. Thermal use of fuels, Installations de production et de conversion d'énergie: énergie électrique, énergie thermique., Installations for energy generation and conversion: thermal and electrical energy., Centrales nucléaires à fission, Fission nuclear power plants, Centrales nucléaires à fusion, Controled nuclear fusion plants, Analyse thermique, Thermal analysis, Análisis térmico, Centrale nucléaire, Nuclear power plant, Central nuclear, Logiciel, Software, Logicial, Modélisation, Modeling, Modelización, Norme, Standards, Norma, Réacteur nucléaire, Nuclear reactor, Reactor nuclear, Régime permanent, Steady state, Régimen permanente, Soupape, Valve, Válvula, Système automatique, Automatic system, Sistema automático, Système commande, Control system, Sistema control, Sécurité, Safety, Seguridad, Thermohydraulique, Thermohydraulics, Termohidraúlica, Turbine vapeur, Steam turbine, Turbina vapor, Vapeur eau, Water vapor, Vapor agua
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Seoul National University, Korea, Republic of
PHILOSOPHIA, Inc., 599 Gwanak Ro, Gwanak Gu, Seoul 151-744, Korea, Republic of
ISSN:
0029-5493
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=25481788
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Energy
Accession Number:
edscal.25481788
Database:
PASCAL Archive

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Steam turbine control valves play a pivotal role in regulating the output power of the turbine in a commercial power plant. They thus have to be operated linearly to be run by an automatic control system. Unfortunately, the control valve has inherently nonlinearity characteristics. The flow increases more significantly near the closed end than near the open end of the stem travel given the valve position signal. The steam flow should nonetheless be proportional to the final desired quantity, output power, of the turbine to obtain a linear operation. This paper presents the valve engineering linked analysis (VELA) for nonlinearity characteristic compensation of the steam turbine control valve by using a linked two existing commercial software. The Multi-dimensional Analysis of Reactor Safety (MARS) code and Matlab Simulink have been selected for VELA to develop a steady state and transient analyzer of Ulchin Units 3&4 powered by the Optimized Power Reactor 1000 MWe (OPR1000). MARS is capable of modeling a wide range of systems from single pipes to full nuclear power plants. As one of standard nuclear power plant thermal hydraulic analysis software tools, MARS simulates the primary and secondary sides of the nuclear power plant. To simulate the electric power flow part, Matlab Simulink is chosen as the standard analysis software. Matlab Simulink having an interactive environment to model analyzes and simulates a wide variety of engineering dynamic systems including multimachine power systems. Based on the MARS code result, Matlab Simulink analyzes the power flow of the generator connected to an infinite bus for representing the grid connection. Three different scenarios are analyzed in VELA by considering the control valves opening sequence mechanism and the change rate of output power reference.