Integration of neural networks with fuzzy reasoning for measuring operational parameters in a nuclear reactor

Journal Article · Fri Oct 01 00:00:00 EDT 1993 · Nuclear Technology; (United States)

OSTI ID:6011109

Ikonomopoulos, A; Tsoukalas, L H ^[1]; Uhrig, R E ^[2]

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1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Nuclear Engineering
2. Oak Ridge National Lab., TN (United States)

A novel approach is described for measuring variables with operational significance in a complex system such as a nuclear reactor. The methodology is based on the integration of artificial neural networks with fuzzy reasoning. Neural networks are used to map dynamic time series to a set of user-defined linguistic labels called fuzzy values. The process takes place in a manner analogous to that of measurement. Hence, the entire procedure is referred to as virtual measurement and its software implementation as a virtual measuring device. An optimization algorithm based on information criteria and fuzzy algebra augments the process and assists in the identification of different states of the monitored parameter. The proposed technique is applied for monitoring parameters such as performance, valve position, transient type, and reactivity. The results obtained from the application of the neural network-fuzzy reasoning integration in a high power research reactor clearly demonstrate the excellent tolerance of the virtual measuring device to faulty signals as well as its ability to accommodate noisy inputs.

• OSTI ID: 6011109
• Journal Information: Nuclear Technology; (United States), Vol. 104:1; ISSN 0029-5450
• 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
REACTOR MONITORING SYSTEMS
NEURAL NETWORKS
RESEARCH REACTORS
ALGORITHMS
ARTIFICIAL INTELLIGENCE
ERRORS
FUZZY LOGIC
PERFORMANCE
POSITIONING
REACTIVITY
TRANSIENTS
VALVES
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
MATHEMATICAL LOGIC
REACTORS
RESEARCH AND TEST REACTORS
220400* - Nuclear Reactor Technology- Control Systems
220600 - Nuclear Reactor Technology- Research
Test & Experimental Reactors
990200 - Mathematics & Computers