Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi, Sara Bortot, Alessandro Della Bona Fabio Fineschi, Alessio Campedrer LEADER WP4 Task 4.1 (task leader: Fabio Fineschi ) Task 4.4 (task leader: Antonio Cammi , [email protected]) “Preliminary definition of the Control Architecture” ENEA BOLOGNA 26 th October 2011 CIRTEN Consorzio universitario per la ricerca tecnologica nucleare UNIVERSITA’ DI PISA
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Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi, Sara Bortot, Alessandro Della Bona
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Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi, Sara Bortot, Alessandro Della Bona
“Preliminary definition of the Control Architecture”
ENEA BOLOGNA
26th October 2011
CIRTEN Consorzio universitario per la ricerca tecnologica nucleare
UNIVERSITA’ DI PISA
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
OUTLINE
Point on the progress of the work
Reference system configuration and modeling
Significant free dynamics results
NON-LINEAR control system options
Main results
Present and future developments
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
POINT ON THE PROGRESS OF THE WORK
DYNAMICS SIMULATOR
DEVELOPMENT
NON-LINEAR
ZERO-DIMENSIONAL
NON-LINEAR
OBJECT-ORIENTED
LINEARIZED
ZERO-DIMENSIONAL
LINEARIZED
OBJECT-ORIENTED
TRANSIENT ANALYSES
LINEAR ANALYSIS
NEW!
CONTROL SYSTEM
DEVELOPMENT
• Evaluation of scenarios
• Final proposal• Implementation
TOOLS GOALS
CONTROLLED
PLANT TRANSIENT BEHAVIOR
NEW!
NEW!NEW!
NEW!
NEW!
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
POINT ON THE PROGRESS OF THE WORK
CAUSAL APPROACH ACAUSAL APPROACH
INPUT AND OUTPUT VARIABLES DETERMINED A PRIORI
NO INPUT AND OUTPUT VARIABLES NEITHER BOUNDARY CONDITIONS DETERMINED A PRIORI
EQUATIONS TO BE REWRITTEN FOR THE STATE-SPACE REPRESENTATION
CAUSALITY SPECIFIED ONLY WHEN SOLVING THE EQUATIONS
PROBLEM SOLVED STEP BY STEP BY THE USER COMPONENT MODELS INDEPENDENT OF OTHER MODELS AND BOUNDARY CONDITIONS
GREATER EFFORT REQUIRED FOR MODIFYING EXISTING MODELS
MORE REALISTIC DESCRIPTION OF COMPONENTS
DIFFICULTIES IN REUSING MODELS POSSIBILITY OF EASILY REUSING COMPONENT AND SUBSYSTEM MODELS
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
REFERENCE SYSTEM CONFIGURATION and MODELING
165 cm
529.89 cm
MAIN COMPONENTS: CORE
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
MAIN COMPONENTS: CORE
REACTIVITY COEFFICIENTS- Doppler from SCK calculations- Lead density from SCK calculations- Axial expansion from DEMO (missing data)- Radial expansion from DEMO (missing data)
KINETIC PARAMETERS- λi from DEMO (missing data)
- βi from DEMO (missing data)
CONTROL RODS WORTH- Insertion curves from DEMO (missing data)
REFERENCE SYSTEM CONFIGURATION and MODELING
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
REFERENCE SYSTEM CONFIGURATION
MAIN COMPONENTS: SG
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
PRIMARY LOOP
REFERENCE SYSTEM CONFIGURATION and MODELING
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
SECONDARY LOOP (BoP)
REFERENCE SYSTEM CONFIGURATION and MODELING
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
SECONDARY LOOP (BoP)
FINAL REFERENCE CONFIGURATION MISSING
STANDARD COMPONENTS EMPLOYED
REFERENCE SYSTEM CONFIGURATION and MODELING
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot
SIGNIFICANT FREE DYNAMICS RESULTS
LEAD MASS FLOW RATE VARIATIONVARIATION = - 20 %
PowerT_cold_leg
T_hot_leg Pressure
Antonio Cammi, Roberto Ponciroli, Stefano Lorenzi , Sara Bortot