Development of real-time density feedback control on MAST-U in L-mode

被引：4

作者：

Derks, G. L. ^{[1
,2
]}

Kool, B. ^{[1
,2
]}

Vincent, C. ^{[3
]}

Elmore, S. ^{[3
]}

Henderson, S. S. ^{[3
]}

Koenders, J. T. W. ^{[1
,2
]}

Lovell, J. ^{[5
]}

McArdle, G. ^{[3
]}

Parry, B. ^{[3
]}

Scannell, R. ^{[3
]}

Sarwar, R. ^{[3
]}

Verhaegh, K. ^{[3
,4
]}

van Berkel, M. ^{[1
]}

机构：

[1] Dutch Inst Fundamental Energy Res, Eindhoven, Netherlands

[2] Eindhoven Univ Technol, Dept Mech Engn, Eindhoven, Netherlands

[3] Culham Sci Ctr, Culham Ctr Fus Energy, United Kingdom Atom Energy Author, Abingdon, Oxon, England

[4] Univ York, York Plasma Inst, York, England

[5] Oak Ridge Natl Lab, Oak Ridge, TN USA

来源：

FUSION ENGINEERING AND DESIGN | 2024年 / 202卷

关键词：

MAST-U; Density; Dynamics; Control; PLASMA CONTROL; SYSTEM;

D O I：

10.1016/j.fusengdes.2024.114387

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 paper we report on the development and demonstration of density feedback control for MAST -U. Sinusoidal perturbations are used to measure the frequency response from a deuterium gas valve (actuator) to line-integrated core electron density measured by the interferometer (sensor). In the frequency range relevant for control design, only two system-identification experiments were needed to regress a first-order dynamic model. This control-oriented model informs the offline design of a proportional integral controller with the established loop-shaping controller design method. After offline verification of the controller implementation, control is demonstrated by experimentally tracking a staircase reference for the line-integrated electron density. This paper demonstrates the efficiency of controller design using system-identification and loop-shaping, providing reliable density control for MAST -U.

引用

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