Instrument failure detection and accommodation (with applications to LOFT primary system)
Technical Report
·
OSTI ID:6757075
Methods of detecting instrument failures in dynamic systems are described and evaluated. The methods use statistical tests on the innovations sequence of a Kalman filter, designed for the unfailed system, to make a failure decision. Once a failure is detected, the failed instrument reading is replaced with an optimal estimate of the measured parameter. This failure accommodation is accomplished using a bank of auxiliary Kalman filters (one for each sensor), each driven by a single measurement. Failure monitors are developed for both the Loss-of-Fluid Test (LOFT) pressurizer and reactor instrumentation. The failure monitoring system performance is demonstrated using data from the LOFT L6 test series.
- Research Organization:
- Idaho National Engineering Lab., Idaho Falls (USA)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 6757075
- Report Number(s):
- EGG-LOFT-5925; ON: DE83001778
- Country of Publication:
- United States
- Language:
- English
Similar Records
Instrument failure monitoring in nuclear power systems
Real-time instrument-failure detection in the LOFT pressurizer using functional redundancy
Evaluation of a Kalman filter based power pressurizer instrument failure detection system implemented on a nuclear power plant training simulator
Thesis/Dissertation
·
Thu Dec 31 23:00:00 EST 1981
·
OSTI ID:6427188
Real-time instrument-failure detection in the LOFT pressurizer using functional redundancy
Technical Report
·
Thu Jul 01 00:00:00 EDT 1982
·
OSTI ID:5236503
Evaluation of a Kalman filter based power pressurizer instrument failure detection system implemented on a nuclear power plant training simulator
Conference
·
Thu Dec 06 23:00:00 EST 1984
·
OSTI ID:6053129
Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
COOLING SYSTEMS
ENERGY SYSTEMS
FAILURES
LOFT REACTOR
PRESSURE GRADIENTS
PRIMARY COOLANT CIRCUITS
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR INSTRUMENTATION
REACTORS
RESEARCH AND TEST REACTORS
TANK TYPE REACTORS
TEMPERATURE GRADIENTS
TEST REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
COOLING SYSTEMS
ENERGY SYSTEMS
FAILURES
LOFT REACTOR
PRESSURE GRADIENTS
PRIMARY COOLANT CIRCUITS
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR INSTRUMENTATION
REACTORS
RESEARCH AND TEST REACTORS
TANK TYPE REACTORS
TEMPERATURE GRADIENTS
TEST REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS