Spatial stabilization of Advanced Heavy Water Reactor

被引：30

作者：

Shimjith, S. R. ^{[1
]}

Tiwari, A. P. ^{[1
]}

Bandyopadhyay, B. ^{[2
]}

Patil, R. K. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Reactor Control Div, Bombay 400085, Maharashtra, India

[2] Indian Inst Technol, Bombay 400076, Maharashtra, India

来源：

ANNALS OF NUCLEAR ENERGY | 2011年 / 38卷 / 07期

关键词：

Spatial oscillation; Nodal model; Nuclear reactor control; Output feedback; PERIODIC OUTPUT-FEEDBACK; NUCLEAR-REACTOR; LARGE PHWR; KINETICS; DYNAMICS;

D O I：

10.1016/j.anucene.2011.03.008

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：

Spatial oscillation in neutron flux distribution resulting from reactivity feedbacks due to fission products such as xenon is a matter of concern in large nuclear reactors. Left uncontrolled, the spatial oscillations may lead to "flux tilting" which may put the fuel integrity at peril. Hence during the design stages of any large nuclear reactor, it is essential to identify the existence of spatial instabilities and to design a suitable control strategy for regulating the spatial power distribution. In this paper, the existence of spatial instabilities in Advanced Heavy Water Reactor is investigated, which establishes that this reactor exhibits three modes of spatial instabilities. The paper further explores its stabilization using a control strategy based on feedback of total as well as spatial power distribution signals. The efficacy and robustness of the controller is demonstrated through dynamic simulations. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1545 / 1558

页数：14

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