A knowledge-based operator advisor system for integration of fault detection, control, and diagnosis to enhance the safe and reliable operation of nuclear power plants

Thesis/Dissertation · Sun Jan 01 04:00:00 EST 1989

OSTI ID:6417331

Bhatnagar, R

A Knowledged-Based Operator Advisor System has been developed for enhancing the complex task of maintaining safe and reliable operation of nuclear power plants. The operator's activities have been organized into the four tasks of data interpretation for abstracting high level information from sensor data, plant state monitoring for identification of faults, plan execution for controlling the faults, and diagnosis for determination of root causes of faults. The Operator Advisor System is capable of identifying the abnormal functioning of the plant in terms of: (1) deviations from normality, (2) pre-enumerated abnormal events, and (3) safety threats. The classification of abnormal functioning into the three categories of deviations from normality, abnormal events, and safety threats allows the detection of faults at three levels of: (1) developing faults, (2) developed faults, and (3) safety threatening faults. After the identification of abnormal functioning the system will identify the procedures to be executed to mitigate the consequences of abnormal functioning and will help the operator by displaying the procedure steps and monitoring the success of actions taken. The system also is capable of diagnosing the root causes of abnormal functioning. The identification, and diagnosis of root causes of abnormal functioning are done in parallel to the task of procedure execution, allowing the detection of more critical safety threats while executing procedures to control abnormal events.

• Research Organization: Ohio State Univ., Columbus, OH (USA)
• OSTI ID: 6417331
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220400* -- Nuclear Reactor Technology-- Control Systems
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
CLASSIFICATION
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL SYSTEMS
DATA ANALYSIS
DETECTION
DIAGNOSTIC TECHNIQUES
EXPERT SYSTEMS
FAILURES
FLUCTUATIONS
KNOWLEDGE BASE
MITIGATION
MONITORING
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
OPERATION
PERFORMANCE TESTING
POWER PLANTS
PROCESS CONTROL
REACTOR OPERATION
REAL TIME SYSTEMS
RELIABILITY
SAFETY
TESTING
THERMAL POWER PLANTS
VARIATIONS