Expert systems with fuzzy logic for intelligent diagnosis and control of nuclear power plants

Conference · Mon Jan 01 00:00:00 EST 1990 · Transactions of the American Nuclear Society; (United States)

OSTI ID:6779750

Abdelhai, M I; Upadhyaya, B R ^[1]

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1. Univ. of Tennessee, Knoxville (United States)

A model-based production-rule analysis system was developed for the tracking and diagnosis of the condition of a reactor coolant system (RCS) using a fuzzy logic algorithm. Since nuclear power plants are large and complex systems, it is natural that vagueness, uncertainty, and imprecision are introduced to such systems. Even in fully automated power plants, the critical diagnostic and control changes must be made by operators who usually express their diagnostic and control strategies linguistically as sets of heuristic decision rules. Therefore, additional imprecisions are introduced into the systems because of the imprecise nature of such qualitative strategies when they are converted into quantitative rules. Such problems, in which the source of imprecision is the absence of sharply defined criteria of class membership, could be dealt with using fuzzy set theory. Hence, a fuzzy logic algorithm could be initiated to implement a known heuristic whenever the given information is vague and qualitative, and it will allow operators to introduce certain linguistic assertions and commands to diagnose and control the system.

• OSTI ID: 6779750
• Report Number(s): CONF-901101-; CODEN: TANSAO
• Journal Information: Transactions of the American Nuclear Society; (United States), Vol. 62; Conference: American Nuclear Society (ANS) winter meeting, Washington, DC (United States), 11-16 Nov 1990; ISSN 0003-018X
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
NUCLEAR POWER PLANTS
REACTOR CONTROL SYSTEMS
EXPERT SYSTEMS
ALGORITHMS
ARTIFICIAL INTELLIGENCE
DECISION MAKING
DIAGNOSTIC TECHNIQUES
KNOWLEDGE BASE
MATHEMATICAL LOGIC
REACTOR OPERATION
REACTOR OPERATORS
REACTOR SAFETY
SURVEILLANCE
TIME DEPENDENCE
ANIMALS
CONTROL SYSTEMS
MAMMALS
MAN
NUCLEAR FACILITIES
OPERATION
PERSONNEL
POWER PLANTS
PRIMATES
SAFETY
THERMAL POWER PLANTS
VERTEBRATES
220900* - Nuclear Reactor Technology- Reactor Safety
220400 - Nuclear Reactor Technology- Control Systems
990200 - Mathematics & Computers