Implementation of new PRODIAG algorithm and simulation-based acceptance test - 219

Conference · Thu Jun 15 00:00:00 EDT 2017

OSTI ID:23035340

Park, Young Soo; Vilim, Richard ^[1]

---

1. Argonne National Laboratory 9700 South Cass Ave., Lemont, IL 60432 (United States)

This paper presents the improvement of an automated-reasoning computer program for nuclear power plant diagnosis, namely PRODIAG. PRODIAG, first developed at the Argonne National Laboratory, uses confluence-based reasoning to perform fault diagnosis in engineering systems that can be described by the conservation laws for mass, energy, and momentum. Therefore, unlike other plant configuration-dependent rule-based diagnosis algorithms, the code is generally applicable to a wide variety of plant configurations by simply replacing the plant instrumentation diagram (PID) database. The need for improvement was raised when the original PRODIAG failed to provide the requisite degree of extensibility and maintainability for new applications. These shortcomings have been addressed through a new code architecture that uses an objected-oriented logic-programming language in place of the original Prolog language and uses an open-source automated reasoning engine in place of the original hardwired rule-evaluation sequence. This paper presents the architecture and implementation details of the code transition. Verification and validation studies were performed for the new PRODIAG, which involved re-running the distinct fault cases defined at the time the code was originally developed. (authors)

• Research Organization: American Nuclear Society - ANS, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 23035340
• Resource Relation: Conference: NPIC and HIMIT 2017: 10. International Conference on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, San Francisco, CA (United States), 11-15 Jun 2017; Other Information: Country of input: France; 10 refs.; available from American Nuclear Society - ANS, 555 North Kensington Avenue, La Grange Park, IL 60526 (US)
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
22 GENERAL STUDIES OF NUCLEAR REACTORS
ALGORITHMS
ARTIFICIAL INTELLIGENCE
COMPUTER CODES
COMPUTERIZED SIMULATION
CONFIGURATION
CONSERVATION LAWS
DIAGNOSIS
EVALUATION
EXPERT SYSTEMS
FAULT TREE ANALYSIS
NUCLEAR POWER PLANTS
PROLOG
VALIDATION
VERIFICATION