RF Matching Feedback Control Systems on the JET ITER-Like Antenna

Journal Article · Thu Nov 26 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3273734· OSTI ID:21335711

Vrancken, M; Dumortier, P; Durodie, F; Huygen, S; Lerche, E; Messiaen, A M; Ongena, J; Van Eester, D; Van Schoor, M; Vervier, M; Weynants, R ^[1]; Argouarch, A ^[2]; Blackman, T; Graham, M; Jacquet, P; Mayoral, M -L; Nightingale, M P. S.; Whitehurst, A ^[3]; Goulding, R H ^[4]

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1. LPP/ERM-KMS, Association EURATOM-Belgian State, Brussels (Belgium)
2. Association EURATOM/CEA, CEA Cadarache (France)
3. EURATOM/UKAEA Fusion Association, Culham Science Center (United Kingdom)
4. Oak Ridge National Laboratory, Oak Ridge (United States)

Ion Cyclotron Resonance Frequency (ICRF) antennas achieve maximum power transfer from RF generator to plasma load by establishing an impedance match. The JET ITER-Like Antenna (ILA) consists of 4 mutually coupled resonators that need to be matched simultaneously and whose resonant states need to be accurately controlled by several available actuators to couple maximum power and to achieve optimal ELM resilience. The operation of the matching system is described. Experimental operation revealed some phenomena and sensitivities that did not surface from simulation alone and that should be taken into account for the design of future ICRF antennae systems.

• OSTI ID: 21335711
• Journal Information: AIP Conference Proceedings, Vol. 1187, Issue 1; Conference: 18. topical conference on radio frequency power in plasmas, Gent (Belgium), 24-26 Jun 2009; Other Information: DOI: 10.1063/1.3273734; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACTUATORS
ANTENNAS
COMPUTERIZED SIMULATION
CONTROL SYSTEMS
DESIGN
EDGE LOCALIZED MODES
FEEDBACK
ICR HEATING
IMPEDANCE
ION CYCLOTRON-RESONANCE
ITER TOKAMAK
JET TOKAMAK
OPERATION
PLASMA
PLASMA SIMULATION
PLASMA WAVES
RESONATORS
RF SYSTEMS