mochovce unit 3 & 4 full-scope simulator project key points and successes
TRANSCRIPT
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Two New Units at Mochovce
• Modern power plant consisting of four Soviet VVER 440/V-213:– Units 1 & 2 operated since 1998
and 2000– Units 3 & 4 to be started up in
2014 and 2015
• Owner: Slovenské elektrárne and Enel
• Primarily modern Siemens controls and a modern control room with a traditional plant design.
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Project Objective
High fidelity full-scope simulator:– All new system models and controls– New control room panels including emergency control
room– Siemens and other vendors sub-contractor to GSE– Simulator delivery critical to new plant schedule (critical
path) – Plant controls still in development as simulator was
being constructed
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Simulator Applications
The simulator was successfully used for the following purposes:
– Verification and validation of the operational and emergency procedures
– Verification and testing of the DCS system to identifying control deficiencies to the main project • This has helped the main project schedule and costs
significantly!
– Training the new operators and preparing them for operating the main unit
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3rd Party Integrated Software
The simulator integrated many third party new and complex technologies:
– Siemens /Areva DCS, BUP, Instrumentation and Control (I&C)
(T2000/T3000)-Virtual control with Stimulated interface
– Invelt/Skoda Turbine Control System (TCS) – Stimulated
– Skoda Reactor Rod Control System (RRCS) – Stimulated
– Rolls Royce Ex-core system – Stimulated
– SNIIP In-core system – Stimulated
– ZAT Electrical Distribution/Synchronization system – ED
Stimulated & Sync Simulated
– EnergoData Dispatching Center – Stimulated
– SafeCo Fire Detection and Protection System – Stimulated
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Mochovce 3/4 Simulator Network Layout
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Simulator Control Room
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Simulator Control Room
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Simulator Control Room
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Simulation Software Tool Set
JADE Modeling Tool Set– JTopmeret: Two Phase Flow Network Modeling– JControl: Functional Block Control Modeling– JLogic: Schematic Logic Modeling– JElectric: Electrical Network Modeling– Theatre: Thermal hydraulics model– Remark: Reactor core neutronics model
JADE Instructor Station– JStation: Instructor/Operator Station
JADE Graphic User Interface (GUI)– JDesigner: Simulation Drawing Editor– JEditor: Object / Icon Editor
SimExec: Multi-User Real-time Executive
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Core/TH Implementation
Neutronics Model– REMARK
• dimensional coarse mesh, two (or four) energy groups, time-dependent, diffusion model
– 349 fuel assemblies – 16 axial nodes– Core nodalization size is 349x16
or 5,584 nodes
Thermohydraulics Model– Theatre code– 5 equation model with drift flux– Using RELAP5 flow regimes and
properties– 350 nodes
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JTOPMERET
Two phase, 6 equations, multi-component, non-thermal equilibrium model
High fidelity modeling tool designed for BOP
– Main steam – Feed water– CVCS– Containment, etc.
JTOPMERET has been implemented in over 50 full scope simulators.
Used to model All BOP fluid systems
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Model Fidelity and Detail
New build plants with Digital I&C and control rooms allow the operator to see much more detail than older analog plants.
– Models must have a much more detailed scope of simulation.– Interface allow for trending and alarming of these systems and therefor
the fidelity of the models must support. – Older simulators could get by with less model definition as much was
hidden from the operator.
The value of the simulator as an engineering resource to the construction project means that more fidelity is required.
– Predictive models are needed, not “tuned” to match– Virtual and stimulated DCS allow for virtual commissioning and SAE
• Need real control algorithms
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Project Challenges
Plant under construction, build simulator parallel with plant, DCS database availability and changes.
• Need to integrate changes and run automated test to validate logic• Many times new logic was not complete or ready for test• Customer relied on GSE team to test new controls for sim and new plant.
Integrate the simulator with third party vendors complex and new technologies.
• Third party tools• Each had its own issues (IC, communications, displays)
– Size and complexity of the project with unique features DCS, BUP and third party systems
– Location of the project • The project was performed in three locations: United States, Germany and
Slovakia • Created difficulties for providing resources and transportation of the
expensive equipment.
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Project Result
The simulator project was started in March 2009.
Schedule was delayed/extended as major change was made to control room design.
Successfully completed on time in December 2013 – On-time delivery– On-budget delivery– Customer provided letter of commendation for the team
and the simulator.
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