Minimization of the energy loss of nuclear power plants in case of partial in-core monitoring system failure

International Conference for Young Scientists, Specialists, and Postgraduates on Nuclear Reactor Physics 2016

Zagrebaev, A.M.^1 ; Ramazanov, R.N.^1 ; Lunegova, E.A.^1

National Research Nuclear University, MEPhI (Moscow Engineering Physics Institute), Department of Cybernetics, Kashirskoe highway, 31, Moscow

115409, Russia^1

关键词: Energy release;    Mathematical method;    Measurement information;    Missing measurements;    Monitoring system;    Neutron flux densities;    Neutron measurements;    Optimization problems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/781/1/012028/pdf
DOI  :  10.1088/1742-6596/781/1/012028

来源: IOP

【 摘 要 】

In this paper we consider the optimization problem minimize of the energy loss of nuclear power plants in case of partial in-core monitoring system failure. It is possible to continuation of reactor operation at reduced power or total replacement of the channel neutron measurements, requiring shutdown of the reactor and the stock of detectors. This article examines the reconstruction of the energy release in the core of a nuclear reactor on the basis of the indications of height sensors. The missing measurement information can be reconstructed by mathematical methods, and replacement of the failed sensors can be avoided. It is suggested that a set of 'natural' functions determined by means of statistical estimates obtained from archival data be constructed. The procedure proposed makes it possible to reconstruct the field even with a significant loss of measurement information. Improving the accuracy of the restoration of the neutron flux density in partial loss of measurement information to minimize the stock of necessary components and the associated losses.