Nuclear Power Plant Instrumentation and Control, MEXICO · PDF fileInstituto Nacional de...

Instituto Nacional de Investigaciones Nucleares, México

Nuclear Power Plant Instrumentation

and Control, MEXICO

26th Meeting of the IAEA Technical Working Group on Nuclear Power Plant Instrumentation and

Control (TWG -NPPIC)

May 24-26, 2017, IAEA, Vienna

Dr. Francisco Javier Ramírez-Jiménez


OUTLINE

Introduction

New objectives

Main Projects

Recommendations

25th Meeting of the IAEA Technical Working Group on Nuclear Power Plant Instrumentation and

Control (TWG -NPPIC)

May 24-26, 2017, IAEA, Vienna


MEXICO

Location of MEXICO

INTRODUCTION


Location of the Nuclear Power Plant


Laguna Verde Nuclear Power Plant


TWO General Electric (GE) Boiling Water Reactors (BWR)

UNIT 1 started in 1990 27 years old

UNIT 2 started in 1995 22 years old

MEAN POWER : 1.6 GW ( 2.6 % )

Total energy generated : 11 176.5 GW hr (4.0 %)

Mean efficiency in the last years: 83.6 %


Two important activities of the Nuclear Power Plant:

POWER UPRATING OF THE LVNPP

From 1.4 GW to 1.6 GW

in 2015

LIFE EXTENSION OF THE LVNPP

Original licence: 30 years

Assurance of the long term operation

From 30 years to 60 years


The operator of the plant is the Federal

Commission of Electricity, CFE, of MEXICO

The National Institute for Nuclear Research,

ININ, is an advisor that provides scientific

and technical support to the plant.

National Nuclear Safeguards Commission

GOVERNMENT


MAIN NATIONAL OBJECTIVES

• OPTIMIZE PRODUCTION COSTS, reduce price

• INCREASE FINANCIAL RENTABILITY, investments

• INCREASE RELIABILITY, safety

• INCREASE EFFECTIVITY

Efficiency - 86%

Reduction of collective anual dose

• GET LIFE EXTENSION TO 60 YEARS

wasted fuel dry storage

assurance of long term operation

• KEEP MAN POWER, transfer of knowledge, training of new

personnel


MAIN OBJECTIVES

• OPTIMIZE PRODUCTION COSTS

• INCREASE FINANCIAL RENTABILITY

• INCREASE RELIABILITY

• INCREASE EFFECTIVITY

Efficiency - 86%

Reduction of collective anual dose

• GET LIFE EXTENSION TO 60 YEARS

Wasted fuel dry storage

Assurance of long term operation

• KEEP MAN POWER, transfer of knowledge, training of

new personnel


MAIN PROJECTS

- Proactive Ageing Management for Long Term Operation

of Laguna Verde Nuclear Power Plant, LVNPP.

(IAEA TC)

Structural components (static) and I & C

2014 – 2017

2018 – 2020

- RELIABILITY

Reduction of failures that generate false SCRAM

Reduction of maintenence and repair times

Proactive management of spare parts


Project “IAEA-MEX 2017”

Instrumentation & Control

Proactive Ageing Management for Long Term Operation of Laguna

Verde Nuclear Power Plant, LVNPP

• Design, selection, installation, calibration, maintenance, repair, and

optimization of nuclear instrumentation

• Deals with the obsolescence of electronic instrumentation,

and control systems.

• Deals with the upgrading or reinforcement of nuclear

instrumentation.


I&C ISSUES THAT AFFECT THE LONG TERM OPPERATION

- OBSOLESCENCE OF SOFTWARE AND HARDWARE

• Operating systems for computerized instruments

• Memories

• Microcontrollers

• Integrated circuits

• Complex systems

-AGEING OF INSTRUMENTATION AND CONTROL

COMPONENTS

• Cabling

• Capacitors

• Relays

• Transformers


Ageing Management of Specific Instrumentation

and Control Systems of the LVNPP

- several systems of the plant have been identified as fields of

action for upgrading or reinforcement.

- We focus in common problems encountered in I&C systems

Starting Range Neutron Monitoring System, SRNMS

Process radiation monitoring systems

Reactor Manual control

Heat tracing

Grounding,shielding and protection of electronic

equipments to reduce the electromagnetic interference

and transients in nuclear instrumentation


Improvements in the Radiation Monitoring System

Ventilation of the Turbo Generator Building

Instituto Nacional de Investigaciones Nucleares, MéxicoMarch 2015

Optimization of the Off Gas Radiation Monitoring System


Radiological Monitoring Network around the Nuclear Power Plant


Measurement of process

variables

Oxygen

Hydrogen

Conductivity


Upgrading and Refurbishment of electronic modules

Booster Unit for the Turbo Pumps

Electro-Hydraulic System, Turbo Pumps


Diagnostic of damaged circuits

Common cause failure

Reverse engineering

Transponder, Reactor Manual Control


NEXT WORSHOP

• Application of digital technologies in nuclear

power plants, including reliability, security,

communications (also wireless and fiber

optic), failure modes and experiences

• Plant operations and maintenance /

economics, including benefits (e.g.

efficiency, reliability, optimization, preventive

maintenance)

• I&C modernization technologies and

methodologies as well as experiences

• Control room / human-system interface

technologies


FROM THE AGENDA

Commercial dedication, application of COTS, type approval, product

certification

I&C support for process performance optimization

Economic aspects of I&C modernization (cost justification)

on Systems engineering for digital I&C

Aging management of electrical equipment and components

Design methods to resolve common-cause failure vulnerabilities

Information management (capture modernization and new build

experience)


Configuration management

Change management

Requirements management

How to manage the interfaces between new and old

systems in renewal projects where the automation systems

are only being partly renewed

Maintenance

I&C aspects of supporting field workers for productivity

improvements – smart devices and two-way communication

with information sources and experts


RECOMMENDATIONS

• Consider a training course on Wireless Technologies

applications on NPPs in 2018 or 2019.

• Add a worshop on aging management of I&C components in

2018.

• Look for more benefits for MS in:

- Application of codes and standards……., 2018

- Application of diversity, independence and physical

separation in different levels of I&C systems, 2019

• Add a training course on the process performance

optimization, including new radiation detectors technologies,

and stressing the importance of full understanding of the

processes, 2019.

• Add a training course on maintenance of digital I&C systems

in 2019.

• Add a training course on dedication of I&C systems and

components in 2018.


• To promote the disemination of information

about:

- Operational experiences and solutions on

common problems encountered in I&C

systems of NPPs

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