Bias identification in PWR pressurizer instrumentation using the generalized liklihood-ratio technique

Conference · Wed Dec 31 23:00:00 EST 1980

OSTI ID:6551561

Tylee, J L

A method for detecting and identifying biases in the pressure and level sensors of a pressurized water reactor (PWR) pressurizer is described. The generalized likelihood ratio (GLR) technique performs statistical tests on the innovations sequence of a Kalman filter state estimator and is capable of determining when a bias appears, in what sensor the bias exists, and estimating the bias magnitude. Simulation results using a second-order linear, discrete PWR pressurizer model demonstrate the capabilities of the GLR method.

• Research Organization: EG and G Idaho, Inc., Idaho Falls (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 6551561
• Report Number(s): CONF-810605-1
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
LEVEL INDICATORS
MEASURING INSTRUMENTS
PERFORMANCE
PRESSURE GAGES
PRESSURIZERS
PWR TYPE REACTORS
REACTOR INSTRUMENTATION
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS