On a distinctive feature of problems of calculating time-average characteristics of nuclear reactor optimal control sets

5th International Conference on "Problems of Mathematical and Theoretical Physics and Mathematical Modelling"

物理学;数学

Trifonenkov, A.V.^1 ; Trifonenkov, V.P.^1

National Research Nuclear University, MEPhI (Moscow Engineering Physics Institute), 31 Kashirskoe shosse, Moscow

115409, Russia^1

关键词: Calculating time;    Optimal control problem;    Optimal controls;    Optimal reactor;    Search problem;    Time axis;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/788/1/012060/pdf
DOI  :  10.1088/1742-6596/788/1/012060

来源: IOP

【 摘 要 】

This article deals with a feature of problems of calculating time-average characteristics of nuclear reactor optimal control sets. The operation of a nuclear reactor during threatened period is considered. The optimal control search problem is analysed. The xenon poisoning causes limitations on the variety of statements of the problem of calculating time-average characteristics of a set of optimal reactor power off controls. The level of xenon poisoning is limited. There is a problem of choosing an appropriate segment of the time axis to ensure that optimal control problem is consistent. Two procedures of estimation of the duration of this segment are considered. Two estimations as functions of the xenon limitation were plot. Boundaries of the interval of averaging are defined more precisely.