n=2 compensation and variable gains for JET vertical stabilisation

被引:12
作者
Sartori, F [1 ]
Dorling, S [1 ]
Horton, A [1 ]
Lomas, PJ [1 ]
Smith, MEU [1 ]
Stephen, RC [1 ]
机构
[1] UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
关键词
vertical stabilisation; plasma; digital-analogue; vertical speed;
D O I
10.1016/S0920-3796(03)00288-6
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 JET, the presence of an elongating quadrupolar field makes the plasma vertical position unstable. The vertical stabilisation (VS) system has been developed in order to keep plasmas for a time longer than the vessel field penetration time constant. Its present plasma vertical speed observer is affected by several problems, which reduce the operating range of the system. New hardware has been designed and is now being installed, aimed at solving some of these shortcomings. The main component is a new hybrid (digital-analogue) signal combination card, which should enable a better tuning of the VS system. In addition an increased set of magnetic measurements will be used. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:727 / 734
页数:8
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