Inderscience Publishers

Singular system analysis of the Local Power Range Monitor (LPRM) readings of a Boiling Water Reactor (BWR) in an unstable event

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Singular system analysis is a successful technique to separate oscillating components from a given signal. A methodology is proposed to apply this technique to the signals obtained from the LPRMs of a boiling water reactor core and extract the contributions of the in-phase oscillation and the out-of-phase oscillations from the LPRM readings during an unstable event. This methodology has been validated with synthetic signals and simulations of in-phase and out-of-phase oscillations of the Leibstadt reactor. Finally, one case of Ringhals I Stability Benchmark has been analysed.

Keywords: BWR instabilities, singular system analysis, LPRM signals, sinusoidal signals, boiling water reactors, nuclear reactors, nuclear energy, nuclear power, nuclear technology, nuclear science, local power range monitor, in-phase oscillation, out-of-phase oscillations, simulation, neutronic power signals

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