CONDITION MONITORING
STATE OF THE ART IN NUCLEAR & NO NUCLEAR INDUSTRY
INDEX Predictive Maintenance & Supervision Stages Condition Monitoring / Condition Based Maintenance Computer Maintenance Management System (CMMS) Software techniques Applications connectivity Applications
1. 2. 3. 4. 5. 6. 1. 2.
NPP REACTOR COOLANT PUMP GAS TURBINE
SUPERVISION STAGES FAILURE DETECTION DIAGNOSTICS RECONFIGURATION CONTROL
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) CONDITION MONITORING SYSTEM Impressions (human senses) Maintenance operators
Vibration monitors I&C channels Electrical consumption
Chemical analysis Others
Thermograph
CONDITION BASED MAINTENANCE
DECISIONS MAINTENANCE MANAGEMENT
Cumulated Experience
COMPUTER MAINTENANCE MANAGEMENT SYSTEM (CMMS) CONDITION MONITORING
- Store data - Data management - Experience database
CMMS - Trends - “Analysis” - Alerts
Cumulated Experience DECISIONS MAINTENANCE MANAGEMENT
SOFTWARE TECHNIQUES Data Acquisition, Store & Management - Filtering - Statistics - Transforms (FFT, SFT…) Signals Generation - Threshold - Trend evolution Data Analysis - ... TECHNIQUES - Neural networks INTEGRATION - Fuzzy logic - Signed Direct Graph - Causal analysis - Case Based Reasoning (CBR) - Record APPLICATIONS - Reload CONNECTIVITY - Reuse - Revision
- ...
TECHNIQUES INTEGRATION FOR FAILURE DETECTION & DIAGNOSTICS DB management
Physical Process
Information ON LINE: - Data Acquisition System (Instrumentation, Measures, Controllers)
- Continuous - Discrete (event driven)
OFF LINE: - Modelling (process representation, relations,...) - Experience (expertise, rules, ...) - Learning - History
- Hybrid
Actions
Supervisory System Data Bases Data Bases Numeric Qualitative Numeric Qualitative variables variables variables variables Models Models Knowledge Knowledge Bases Bases
Alarm Alarm generation generation Fault Fault detection detection Diagnosis Diagnosis Reconfiguration Reconfiguration
Numeric Processing Abstraction Tools Modelling Facilities Knowledge Representation facilities Knowledge Processing facilities Uncertainty treatment Monitoring Alarm Generation and management Decision Interfaces ...
“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 R Discharge Pressure HP Cooler Inlet
EXAMPLE 2. Gas Turbine
END
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