Title :
Thyristor making switch system for plasma startup control in RFX
Author :
Lorenzi, A. De ; Bettini, P. ; Peruzzo, S. ; Toigo, V.
Author_Institution :
Consorzio RFX, Padova, Italy
Abstract :
The necessity of better plasma current control during the startup phase asks for a toroidal loop voltage modulation obtained with the multi step reduction of the transfer energy resistor in the OH circuit. The paper begins by discussing the characteristics of such a modulation and then describes the modifications realized and tested on the power supply and magnet systems to prove the feasibility of such an operation; finally, on the basis of the results obtained, we describe the design of the making switch system, based on a 100 mm thyristor valve
Keywords :
Tokamak devices; fusion reactor design; power supplies to apparatus; switchgear; thyristors; 100 mm; OH circuit; RFX; making switch system; plasma current control; plasma startup control; power supply; thyristor; toroidal loop voltage modulation; Circuit testing; Control systems; Current control; Magnetic modulators; Phase modulation; Plasma properties; Resistors; Switches; System testing; Thyristors;
Conference_Titel :
Fusion Engineering, 1999. 18th Symposium on
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-7803-5829-5
DOI :
10.1109/FUSION.1999.849870
