A real-time expert system for nuclear power plant failure diagnosis and operational guide

Journal Article · Tue Dec 01 00:00:00 EST 1987 · Nucl. Technol.; (United States)

OSTI ID:5316435

Naito, N; Sakuma, A; Shigeno, K; Mori, N

A real-time expert system (DIAREX) has been developed to diagnose plant failure and to offer a corrective operational guide for boiling water reactor (BWR) power plants. The failure diagnosis model used in DIAREX was systematically developed, based mainly on deep knowledge, to cover heuristics. Complex paradigms for knowledge representation were adopted, i.e., the process representation language and the failure propagation tree. The system is composed of a knowledge base, knowledge base editor, preprocessor, diagnosis processor, and display processor. The DIAREX simulation test has been carried out for many transient scenarios, including multiple failures, using a real-time full-scope simulator modeled after the 1100-MW(electric) BWR power plant. Test results showed that DIAREX was capable of diagnosing a plant failure quickly and of providing a corrective operational guide with a response time fast enough to offer valuable information to plant operators.

• Research Organization: Nippon Atomic Industry Group Co., Ltd., 4-1 Ukishima-cho, Kawasaki-ku, Kawasaki-shi 210 (JP)
• OSTI ID: 5316435
• Journal Information: Nucl. Technol.; (United States), Vol. 79:3
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
BWR TYPE REACTORS
COMPUTERIZED SIMULATION
EXPERT SYSTEMS
FAILURE MODE ANALYSIS
D CODES
CORRECTIONS
KNOWLEDGE BASE
POWER RANGE 1-10 GW
REACTOR OPERATION
REAL TIME SYSTEMS
RESPONSE FUNCTIONS
TRANSIENTS
COMPUTER CODES
FUNCTIONS
OPERATION
REACTORS
SIMULATION
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
WATER COOLED REACTORS
WATER MODERATED REACTORS
220900* - Nuclear Reactor Technology- Reactor Safety
210100 - Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
990210 - Supercomputers- (1987-1989)