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Title: Design of a Receding Horizon Control System for Nuclear Reactor Power Distribution

Abstract

A receding horizon control method is applied to the axial power distribution control in a pressurized water reactor. The basic concept of receding horizon control is to solve on-line, at each sampling instant, an optimization problem for a finite future and to implement the first optimal control input as the current control input. Thus, it is a suitable control strategy for time-varying systems. The reactor model used for computer simulations is a two-point xenon oscillation model based on the nonlinear xenon and iodine balance equations and a one-group, one-dimensional, neutron diffusion equation with nonlinear power reactivity feedback that adequately describes axial oscillations and treats the nonlinearities explicitly. The reactor core is axially divided into two regions, and each region has one input and one output and is coupled with the other region. Through numerical simulations, it is shown that the proposed control algorithm exhibits very fast tracking responses due to the step and ramp changes of axial target shape and also works well in a time-varying parameter condition.

Authors:
 [1]
  1. Chosun University (Korea, Republic of)
Publication Date:
OSTI Identifier:
20804727
Resource Type:
Journal Article
Journal Name:
Nuclear Science and Engineering
Additional Journal Information:
Journal Volume: 138; Journal Issue: 3; Other Information: Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0029-5639
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALGORITHMS; COMPUTERIZED SIMULATION; CONTROL SYSTEMS; DESIGN; IODINE; NEUTRON DIFFUSION EQUATION; NONLINEAR PROBLEMS; ONE-DIMENSIONAL CALCULATIONS; OPTIMAL CONTROL; OPTIMIZATION; POWER DISTRIBUTION; PWR TYPE REACTORS; REACTIVITY COEFFICIENTS; REACTOR CORES; XENON; XENON OSCILLATIONS

Citation Formats

Na, Man Gyun. Design of a Receding Horizon Control System for Nuclear Reactor Power Distribution. United States: N. p., 2001. Web.
Na, Man Gyun. Design of a Receding Horizon Control System for Nuclear Reactor Power Distribution. United States.
Na, Man Gyun. 2001. "Design of a Receding Horizon Control System for Nuclear Reactor Power Distribution". United States.
@article{osti_20804727,
title = {Design of a Receding Horizon Control System for Nuclear Reactor Power Distribution},
author = {Na, Man Gyun},
abstractNote = {A receding horizon control method is applied to the axial power distribution control in a pressurized water reactor. The basic concept of receding horizon control is to solve on-line, at each sampling instant, an optimization problem for a finite future and to implement the first optimal control input as the current control input. Thus, it is a suitable control strategy for time-varying systems. The reactor model used for computer simulations is a two-point xenon oscillation model based on the nonlinear xenon and iodine balance equations and a one-group, one-dimensional, neutron diffusion equation with nonlinear power reactivity feedback that adequately describes axial oscillations and treats the nonlinearities explicitly. The reactor core is axially divided into two regions, and each region has one input and one output and is coupled with the other region. Through numerical simulations, it is shown that the proposed control algorithm exhibits very fast tracking responses due to the step and ramp changes of axial target shape and also works well in a time-varying parameter condition.},
doi = {},
url = {https://www.osti.gov/biblio/20804727}, journal = {Nuclear Science and Engineering},
issn = {0029-5639},
number = 3,
volume = 138,
place = {United States},
year = {Sun Jul 15 00:00:00 EDT 2001},
month = {Sun Jul 15 00:00:00 EDT 2001}
}