Detection of Sensor Abnormalities in a Pressurizer by Means of Analytical Redundancy
IEEE Transactions on Nuclear Science(2016)
摘要
To improve the reliability of pressurizer level measurement channels against sensor common cause failures (CCFs), a sensor fault detection scheme has been developed based on analytical redundancy in this paper. The fault detection mechanism has been transformed into statistical tests on a Kalman filter generated innovation sequence. An exponentially weighted moving average (EWMA) scheme has been d...
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关键词
Redundancy,Kalman filters,Change detectoion algorithms,Covariance matrices,Coolants,Control charts
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