Coherence analysis of boiling water reactor noise.

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概要

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• Empirical studies of coherences between measurement variables from the operating data of a commercial nuclear power station of 460 MWe are applied to derive dynamical characteristics of the Boiling Water Reactor and to attempt to identify the noise sources of the neutron flux. Multivariate techniques with the partial coherence function and the multiple coherence function are introduced to eliminate correlated effects among measurement variables due to thermal hydraulic coupling and sophisticated reactivity feedbacks. From the results, the usual coherency (the ordinary coherence function) may not be adequate to estimate linear relations between measurement variables of the BWR. Furthermore, the noise sources of the neutron flux is discussed.

• 一般社団法人 日本原子力学会の論文

著者

• FUKUNISHI Kohyu

  Atomic Energy Research Laboratory, Hitachi, Ltd.

関連論文

• Coherence analysis of boiling water reactor noise.
• Dynamical Analysis of a Boiling Water Reactor by Multivariable Autoregressive Model

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