EMERSONWestinghouse Nuclear Automation

® Projects

Foreign Plants (cont)

● Vandellos 2 

–

S

p( , , , ain 

(PCS, TCPS, MSR, TGTMS, , ,) MTS, SWS, SIM

)

FPCPS & NSSS/FWCS in process 

● Yonggwang 1&2 – Korea (TCPS, MSR, MTS, SIM)

● Zaporozhe VVER1000 – Russia Multi-Unit SPDS

Legend: 

• **- New Plant

• AS - Annuciators System

• ATS – Automatic Turbine Startup

• MTS – Maintenance Training System

• MSR – Moisture Separator Controls

• NSSS - Nuclear Steam Supply System

• AVR 

–

Automatic Voltage Regulator PCS Plant Comp ter S stem

• BOP – Balance of Plant

• CVCS – Chemical Volume Control 

System

• FPCS Feedpump Control System

• PCS

– Plant Comp

uter

S

ystem

• RWLCS – Reactor Water Level Control 

System

• SIM – Plant Simulator

• FPCS

– Feedpump Control System • SPDS

– Safety Parameter Display System

• FPCPS – Feedpump Control and 

Protection System

• FWCS – Feedwater Control System

• Leadin

g Ed

ge Flow Meter - LEFM

SPDS Safety Parameter Display System

• SWS – Service Water System

• TCS – Turbine Control System

• TCPS – Turbine Control Protection System

• TGTMS – Turbine Generator Temperature 

10

g g

• MCR - Main Control Room Monitoring System

Westinghouse WDPF Projects Westinghouse WDPF Projects

● Ginna – (FWCS, SIM)

● A 1&2 sco

– S i (TCS NSSS/ Spain (TCS,NSSS/FWCS, FP, MTS, SIM)

● Prarie Island 1&2 – (FWCS, SIM, MTS)

● Ringhals Ringhals 3&4

– Sweden (MCR NSSS/ (MCR, NSSS/FWCS, MTS SIM) MTS, SIM)

● Salem 1&2 – (FWCS, PCS, SIM, MTS)

● Sizewell B 

– En

gland 

( , MCR all non-safet

y includin

g FWCS,

SIM)

● Temelin 1&2– Korea (MCR, all non-safety including FWCS,

SIM

)

Westinghouse Control Systems Westinghouse Control Systems

● All control systems undergo a rigorous design - validation 

process 

● Extensive validation testing is performed in hierarchical levels 

where each level builds upon the previous

● At the heart of this process is the Software In Loop (SWIL) 

Validation testing which utilizes a plant Validation testing which utilizes

a plant

-specific engineering specific engineering

model to close the process loop

– The Pressurized Water Reactors (PWR’s) SWIL plant models 

have been develo

p y ed and refined with over 25 

years of 

experience with successful results

– These models have been validated against multiple plants 

with various types of steam generators

– Th SWIL lid ti t ti th t fi ld t i d The SWIL valid

ation 

testing ensures th

a

t no fi

eld

tuning an

d

system modifications are needed during plant startup & 

evolution to full power

Control System Control System Design Process Design Process

● Design Input Data Collection (Baseline Data)

● Design

– Functional Diagrams/Functional Requirements

– Database, Control Logic Sheet & Graphics

● Modeling & Analysis

– Advanced C S ( CS ) Control 

Simulation Language Model 

(

ACS

L

)

(plant specific model configured for given application)

– Setpoints List

● Control System Software Testing Control System Software Testing

– Software-in-Loop (SWIL) Test , Results & Report

– Phased Factory Acceptance Tests (FAT)

● Simulator

● St t ar

tup

– Site Acceptance Test Procedure/Guidelines

– Power Ascension Test (PAT) Guideline

– PAT On

-site startup support

Design Input Data Collection 

Key Sources Key Sources

● System Information

– Characteristics of I&C Systems being 

• Organizational Interfaces:

- Project Manager replaced

– Design basis 

(existing & upgraded)

● Process Information

Project Manager

- Project Engineers

- Design/Integration Engineers

● Process Information

- Startup Engineers

– Characteristics of Field Devices

– Sensors & Control Devices 

(Pumps, Valves, etc)

Startup Engineers

- System Engineers (Plant 

Systems, Subject Matter 

Ex

perts) – Characteristics of 

Process/Components

– SG/Vessel, Piping, other 

NSSS/BOP com

ponents

p )

- Component Engineers 

(SG/Vessel, Valves, Pumps)

p - I&C Engineers

– Characteristics of Operation & Plant 

Performance

– Statepoints, procedures, historical 

data (plant computer)

- Operations

ACSL Model Configuration Overview ACSL Model Configuration Overview

● Design/operational data collected from plant, reviewed for 

accuracy, p , y ( p ) com

pleteness, consistenc

y

(i.e. no discre

pancies

)

● Configuration data loaded into ACSL based plant model

● The plant-specific ACSL plant model is tied into ACSL based 

control system models transient cases are evaluated control system models transient cases are evaluated

● Adjustments are made until subject matter expert (SME) is 

confident that the plant model and control system models are 

respondi tl ng correctl

y

● SME peer check is also performed to ensure suitability for use

● Once model review & res

p p,p onse checks are com

plete, set

point 

sensitivity tests are performed

● ACSL based control system model is disconnected and Ovation 

control system is switched in; transients cases are re

-performed

16

control system is switched in; transients cases are re performed

and evaluated

Setpoint Determination Setpoint Determination

● Dynamic transient analysis using high-fidelity ACSL model of 

p g rocess runnin

g faster than real time

– Steam Generators or Reactor Vessel