Pattern recognition application for surveillance of abnormal conditions in a nuclear reactor

Pepyolyshev, Yu.N.; Dzwinel, Witold

doi:10.1016/0306-4549(91)90046-z

Cited by 11 publications

(2 citation statements)

References 3 publications

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“…For a power noise analysis [18][19][20][21], we must first extract any reactor dynamics influences from the recorded waveforms (overcompensation by the AR power control rod, etc.). In this respect, we want to determine a baseline with respect to which reference the instantaneous power by subtraction obtains the power noise.…”

Section: Power Noise Baseline and Fourier Transformmentioning

confidence: 99%

Neutron Noise Analysis with Flash-Fourier Algorithm at the IBR-2M Reactor

Dima¹,

Pepelyshev

Tayibov

2013

Advances in High Energy Physics

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Neutron noise spectra in nuclear reactors are a convolution of multiple effects. For the IBR-2M pulsed reactor (JINR, Dubna), one part of these is represented by the reactivities induced by the two moving auxiliary reflectors and another part of these by other sources that are moderately stable. The study of neutron noise involves, foremostly, knowing its frequency spectral distribution, hence Fourier transforms of the noise. Traditional methods compute the Fourier transform of the autocorrelation function. We show in the present study that this is neither natural nor real-time adapted, for both the autocorrelation function and the Fourier transform are highly CPU intensive. We present flash algorithms for processing the Fourier-like transforms of the noise spectra.

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Section: Power Noise Baseline and Fourier Transformmentioning

confidence: 99%

Neutron Noise Analysis with Flash-Fourier Algorithm at the IBR-2M Reactor

Dima¹,

Pepelyshev

Tayibov

2013

Advances in High Energy Physics

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“…During the 1980's and 90's, pattern recognition methodologies and, in particular, cluster analysis were used widely for the study of the IBR-2 and its condition diagnostics (Gonzalez et al, 1974;Pepelyshev and Dzwinel, 1990a,b, 1991, 1992. These methods permitted the investigation of very fine and weak reactivity perturbations that could not be observed and investigated with any other method.…”

Section: Introductionmentioning

confidence: 99%