Time dependence of linear stability parameters of a BWR

被引：9
|
作者：
Navarro-Esbri, J
Ginestar, D
Verdú, G
机构：
[1] Jaume I Univ, Dept Technol, E-12071 Castellon, Spain
[2] Univ Politecn Valencia, Dept Appl Math, Valencia 46022, Spain
[3] Univ Politecn Valencia, Dept Chem & Nucl Engn, Valencia 46022, Spain
来源：
PROGRESS IN NUCLEAR ENERGY | 2003年 / 43卷 / 1-4期
关键词：
BWR stability; Forsmark stability benchmark; linear stability parameters;
D O I：
10.1016/S0149-1970(03)00027-1
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
In this work we present several tools to study the time dependence of the linear stability parameters of a BWR using neutron noise analysis. Particularly, we have studied the variation in time of the fundamental frequency of a signal using the short-time Fourier transform and we have compared this method with the calculation of a time dependent Power Spectral Density (PSD) function. The temporal variation of the decay ratio is analysed using a method based on an autoregressive model to fit the different blocks of the signal. The performance of the tools presented is compared analysing analytic signals and a real signal of Forsmark 1&2 Stability Benchmark. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：187 / 194
页数：8
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