A new extremum seeking technique and its application to maximize RF heating on FTU

被引:54
作者
Carnevale, D. [2 ]
Astolfi, A. [2 ]
Centioli, C. [1 ]
Podda, S. [1 ]
Vitale, V. [1 ]
Zaccarian, L. [2 ]
机构
[1] Assoc Euratom ENEA Fus, Ctr Ric Frascati, I-00044 Frascati, Italy
[2] Univ Roma Tor Vergata, Dip Informat Sistemi & Prod, I-00133 Rome, Italy
关键词
FTU; Extremum seeking; RF heating; STABILITY;
D O I
10.1016/j.fusengdes.2008.12.032
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
We propose a new global extremum seeking algorithm to optimize the coupling between the emitting Lower Hybrid (LH) antennas and the plasma scrape off layer in the radiofrequency (RF) heating problem in tokamak plasmas. The new algorithm, where the existing disturbances affecting the system are seen as the probing signals, requires less constraining properties than the previous ones and is more robust. In particular, simulation results are presented illustrating the effectiveness of the algorithm on the Lower Hybrid RF heating of the Frascati Tokamak Upgrade (FTU). (c) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:554 / 558
页数:5
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