NPP I&C status In Brazil and Recommendations to IAEA. 26th Meeting of the IAEA TWG-NPPIC May 2017 Vienna

Transcription

1 NPP I&C status In Brazil and Recommendations to IAEA 26th Meeting of the IAEA TWG-NPPIC May 2017 Vienna Salomão Gonçalves O. Jr Fuad Kassab Junior Eletrobras Eletronuclear University of São Paulo

2 Contents 1. Brazil data 2. NPP data 3. Fleet modernization Angra unit 1 and Recommendations to IAEA programme (2018 to 2021)

3 1- Brazil data Area: km2 World s 5 th largest country Population: million World s 5 th largest population GDP: 1.98 trillion US$ World s 8 th economy GDP Per Capita: US$ 10,3 Inh 77 th Electricity Production/yr:450 TWh 10 th (Nuclear: MW 1.49 %) Elec. Consumption Per Capita: 90 th 2.4 KWh

4 1- Brazil data Sources: ONS (National Electrical System Operator) Ministry of Mines and Energy Hydro is the main source (>65%). The prediction for renewables in 2017 will be very close to AHE MADEIRA MW (Madeira River) AHE BELO MONTE MW now 3.2 MW (Xingu River)

5 1- Brazil data Brazilian Nuclear Industry

6 2- NPP data ANGRA 2 ANGRA 1 There are currently two NPPs in operation(angra 1 and Angra 2) and one under construction (Angra 3).

7 2- NPP data Future plans Six new NPPs in the northeast

8 2- NPP data (Angra 1) Westinghouse PWR type, two loops, 657 MWe Analog I&C predominant Digital Turbine Control System (Electrical Overspeed Trip) Digital Feedwater and Heater Drain Control System 2- NPP data (Angra 2) Areva (formerly KWU), PWR type, four loops, 1350 MWe Analog and digital hardwired I&C predominant Digital Reactor Control System (JS) Reactor Limitation System Similarities: Conventional Analog Human-Machine Interface Plant Process Computer - HW PLC and SW PC based sys Digital, hardwired Reactor Protection System.

9 2- NPP data (Angra 3 under construction) Areva PWR type, four loops, 1400 MWe Base for HFE Program ANGRA 3 ANGRA 2 Standard NUREG 0711 NUREG 0711 covers IEC Plant Pre-Konvoi Pre-Konvoi Control Room Display Based Conventional Procedures eom Paper PICS OM690 Operating and Hardware Panel Monitoring Sys Version 5 SICS Safety shut down / and timely limited operation Hardware Panel Operating Crew 5 Person shift 5 Persons shift Operating Manual Pre-Konvoi Pre-Konvoi

10 3- Fleet Modernization (Angra 1) What we have done successfully regarding Monitoring? Plant Process Computer (Research Institute) Vent Stack Computer (Research Institute) Sub-cooling Margin Monitor (Research Institute) Turbine Vibration Monitoring (Rovsing) Leakage Monitoring System (Westinghouse) Loose Parts Monitoring System (Areva) What we are planning to do regarding Monitoring? Replacement of Main Transformers (500Kv) new monitoring sys. Replacement of Radiation Monitors (R11 & R12) Upgrade of Reactor Coolant Pump Vibration Mon. Sys. (Rovsing) Upgrade of Digital Rod Position Indication System (DRPI)

11 3- Fleet Modernization (Angra 1)

12 3- Fleet Modernization (Angra 1) What we have done successfully regarding Control? Replacement of transmitters (Emerson) and Foxboro Modules for NUS Level Control System of Heater Exchangers (Yokogawa Sinlge Loop) Pressure Control of the Biological Barrier Ventilation Sys (Siemens SL) Upgrade of Reactor Protection System (replacement of electronic cards) Upgrade of Control Rod Drive Mechanism (replacement of cards) Upgrade of Turbine and Feed Water Ctrl Sys. (West./Emerson Ovation) Full Scope Simulator System (Training Center new building) What we are planning to do regarding Control? NSSS upgrade Pzr Level and Pressure, Chemical Volume Ctrl, Reactor Ctrl (Average Temp., Overpower and Over temp. delta T loops), Rod Insertion Limit (RIL), Steam Dump (SD), Rod Speed Ctrl, Safety Injection and Accumulator (SA) loops.

13 3- Fleet Modernization (Angra 1)

14 3- Fleet Modernization (Angra 2) COOPERATION WITH THE EUROPEAN COMMISSION Eletronuclear developed a two year project with the EC to upgrade Safety Related I&C of Angra 2. The project aimed to define a strategy for the replacement of the existing analogue I&C equipment currently used in Angra 2, mainly the systems important to safety. The project reached its conclusion in the beginning of The results has been used to modernize Angra 2 safety related I&C.

15 3- Fleet Modernization (Angra 2) What we have done successfully regarding Monitoring? Upgrade of Plant Process Computer SICA Installation of Thermal Transient Monitoring System Upgrade of LPMS and Vibration Monitoring System Upgrade of Aeroball System Upgrade of Reactor Vessel Level Instrumentation System What we are planning to do regarding Monitoring? Modernization of Gas Stack Monitoring (KLK) Modernization of Radiation System (replacement SINUPERM M) Modernization of Physical Protection System - (CZ)

16 3- Fleet Modernization (Angra 2) What we have done successfully regarding Control? Modernization of Chlorination System Modernization of Turbine Building Crane Control Modernization of Polar Bridge Crane Control Modernization of Boiler Control Loops Modernization of Reactor Control System (JS) What we are planning to do regarding Control? Modernization of Refueling Machine

17 4- Recommendations to IAEA programme (2018 to 2021) HFE Angra unit 1 - Simplified guidance to aid in definition of MCR/MCB End Point Vision. I&C digital upgrade for process control systems. Angra unit 3 HFE requirements FSAR chapter 18; New technologies applied to digital I&C systems (Ex: Neural Network, Fuzzy Inference Systems and Big Data) ; Tech Meeting topics to exchange informations Control loops tuning for non expected transients (Ex: 100% load rejection), System Health Management, V&V of digital I&C upgrades and VDU based MCR design; Cyber Security Managing external and internal security of digital systems. Managing domain policies. Ageing management of electrical equipment and components (IGALL).

18 Thanks to: Contact Information END Leonan dos Santos G. Eletronuclear Technical Director Fernando Futuro Eletronuclear Superintendent Renan Giese Eletronuclear Sup. Assistent Antonio C. de O. Affonso Eletronuclear Manager Leonard P. Eletronuclear Supervisor and all the I&C team of GEI.T Salomão Gonçalves O. Jr Fuad Kassab Junior

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