CONDITION MONITORING

STATE OF THE ART INNUCLEAR & NO

NUCLEAR INDUSTRY

INDEX

1. Predictive Maintenance & Supervision Stages

2. Condition Monitoring / Condition Based Maintenance

3. Computer Maintenance Management System (CMMS)

4. Software techniques

5. Applications connectivity

6. Applications1. NPP REACTOR COOLANT PUMP

2. GAS TURBINE

SUPERVISION STAGES

DIAGNOSTICS

CONTROL

FAILURE DETECTION

RECONFIGURATION

PROCESS

“Inteligencia artificial para la detección y el diagnóstico de fallos”Joaquín Melémdez / Joan Colomer (Universitat de Girona)

CONDITION MONITORING SYSTEM (CMS)CONDITION BASED MAINTENANCE (CBM)

Impressions(human senses) Vibration monitors

Chemical analysis

I&C channels

Thermograph

Maintenanceoperators

DECISIONSMAINTENANCE MANAGEMENT

Electricalconsumption

Others

CumulatedExperience

CONDITION MONITORING SYSTEM

CONDITION BASED MAINTENANCE

COMPUTER MAINTENANCE MANAGEMENT SYSTEM (CMMS)

CONDITION MONITORING

DECISIONSMAINTENANCE MANAGEMENT

- Trends- “Analysis”- Alerts

- Store data- Data management- Experience database

CumulatedExperience

CMMSCMMS

SOFTWARE TECHNIQUES Data Acquisition, Store & Management

- Filtering- Statistics- Transforms (FFT, SFT…)

Signals Generation- Threshold- Trend evolution- ...Data Analysis

- Neural networks- Fuzzy logic- Signed Direct Graph- Causal analysis- Case Based Reasoning (CBR)

- Record- Reload- Reuse- Revision

- ...

TECHNIQUESINTEGRATION

APPLICATIONSCONNECTIVITY

TECHNIQUES INTEGRATION FORFAILURE DETECTION & DIAGNOSTICS

...

Physical Process

- Continuous

- Discrete (event driven)

- Hybrid

User Interfaces

Decision support

Alarm Generation and management

Monitoring

Uncertainty treatment

Knowledge Processing facilities

Knowledge Representation

facilities

Modelling Facilities

Abstraction Tools

Numeric Processing

DB management

Supervisory System

Numeric variables

Numeric variables Qualitative

variables

Qualitative variables

ModelsModels

Data Bases Data Bases

Knowledge Bases

Knowledge Bases

Alarm generation

Alarm generation

Faultdetection

Faultdetection

Diagnosis Diagnosis

Reconfiguration Reconfiguration

InformationON LINE: - Data Acquisition System (Instrumentation, Measures, Controllers)

OFF LINE:- Modelling (process representation, relations,...)- Experience (expertise, rules, ...)- Learning- History

Actions

“Inteligencia artificial para la detección y el diagnóstico de fallos”Joaquín Melémdez / Joan Colomer (Universitat de Girona)

APPLICATIONS CONNECTIVITY

* RM&D: Remote Monitoring & Diagnostic

EXAMPLE 1.NPP Reactor Coolant Pump

Controlled Bleed-off Flow

Controlled Bleed-off Pressure

Controlled Bleed-of Temperature

Seal Cooler 1 Inlet Pressure

Seal Cooler 1 Inlet Temperature

Seal Cooler 2 Inlet Pressure

Seal Cooler 2 Inlet Temperature

RCP Discharge Pressure

HP Cooler Inlet Temperature

HP Cooler Outlet Temperature

RCP Upper Thrust Bearing Temperature

EXAMPLE 2.Gas Turbine

END

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