Implementation of an expert system for xenon spatial control in pressurized-water reactors

Thesis/Dissertation · Fri Jan 01 00:00:00 EST 1988

OSTI ID:5266225

Chung, S K

Control of the axial xenon oscillations is a knowledge- and experience-intensive activity for reactor operators. To aid reactor operators in the control of axial xenon oscillations, an advisory expert system was developed. A rule-based expert system shell, INSIGHT2+, was used to build the expert system which was interfaced with a microcomputer-based core control model of a pressurized-water reactor, graphic engine, and data base. A core control model described by one-group diffusion theory with moderator temperature and xenon feedbacks was used to develop heuristic control rules and to test the system. Full- and part-length control rods, boron concentration, and coolant inlet temperature were considered as control variables of the core control model. This expert system consists of a search space: the set of possible power level and power shape patterns. The search space was made by combining the following core state variables: the sign of relative power and axial offset (AO) error, sign of the rate of change of power level and AO, and magnitude of relative power and AO error.

• Research Organization: Iowa State Univ. of Science and Technology, Ames, IA (USA)
• OSTI ID: 5266225
• Resource Relation: Other Information: Thesis (Ph. D.)
• 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
COMPUTERIZED CONTROL SYSTEMS
EXPERT SYSTEMS
PWR TYPE REACTORS
XENON OSCILLATIONS
NEUTRON DIFFUSION EQUATION
NUCLEAR POISONS
ONE-GROUP THEORY
REACTOR CONTROL SYSTEMS
REACTOR OPERATORS
CONTROL SYSTEMS
DIFFERENTIAL EQUATIONS
EQUATIONS
MATERIALS
NEUTRON TRANSPORT THEORY
PERSONNEL
POISONING
REACTOR MATERIALS
REACTORS
TRANSPORT THEORY
WATER COOLED REACTORS
WATER MODERATED REACTORS
220400* - Nuclear Reactor Technology- Control Systems
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
990200 - Mathematics & Computers