An integrated approach for signal validation in nuclear power plants

Conference · Sat Aug 01 04:00:00 EDT 1987

OSTI ID:6237424

Upadhyaya, B R; Kerlin, T W; Gloeckler, O; Frei, Z; Qualls, L; Morgenstern, V

A signal validation system, based on several parallel signal processing modules, is being developed at the University of Tennessee. The major modules perform (1) general consistency checking (GCC) of a set of redundant measurements, (2) multivariate data-driven modeling of dynamic signal components for maloperation detection, (3) process empirical modeling for prediction and redundancy generation, (4) jump, pulse, noise detection, and (5) an expert system for qualitative signal validation. A central database stores information related to sensors, diagnostics rules, past system performance, subsystem models, etc. We are primarily concerned with signal validation during steady-state operation and slow degradations. In general, the different modules will perform signal validation during all operating conditions. The techniques have been successfully tested using PWR steam generator simulation, and efforts are currently underway in applying the techniques to Millstone-III operational data. These methods could be implemented in advanced reactors, including advanced liquid metal reactors.

• Research Organization: Tennessee Univ., Knoxville (USA). Dept. of Nuclear Engineering
• DOE Contract Number: AC02-86NE37959
• OSTI ID: 6237424
• Report Number(s): DOE/NE/37959-9; CONF-870832-1; ON: DE87014227
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
CONTROL SYSTEMS
ENGINEERED SAFETY SYSTEMS
MONITORING
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
POWER PLANTS
REACTOR INSTRUMENTATION
REACTOR PROTECTION SYSTEMS
SIGNALS
TESTING
THERMAL POWER PLANTS
VALIDATION