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Abstract

ASDEX Upgrade, the successor to the ASDEX device, is a new tokamak now under construction at Garching. This experiment has a reactor-like divertor with the divertor coils located outside the toroidal field coils. This makes the power and energy requirements high since the total number of ampere-turns of the multipole coils increases approximately as the third power of the distance from these coils to the centre of the plasma. The paper is concerned with investigating the power supply system of this type of tokamak for different modes of operation in comparison with the conventional ASDEX divertor experiment. On the basis of nonlinear circuit simulation it is shown that the current requirements during plasma start-up in the inductively coupled divertor field coils can be met by two-quadrant rectifiers. The realization of the complete power supply system is shown in detail. The basic data of the system are: Grid: 110 kV Number of pulse generators: 4 Total energy available: 2.6 GJ Total peak power: 550 MVA Number of separately powered systems: 14 Currents: 40 to 80 kA

Additional information

Authors: BLAUMOSER M, MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY);KOTTMAIR M, MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY);WIECZOREK A, MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY);GRUBER O MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY), MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING BEI MUENCHEN (GERMANY)
Bibliographic Reference: 14TH SOFT CONFERENCE, AVIGNON (FRANCE), SEPT. 8-12, 1986 VOL. 1, PP. 915-920 1895 P., 1986, VOL. 1 AND VOL. 2, ISBN 0 08 034935 8 WRITE TO PERGAMON PRESS, HEADINGTON HILL HALL, OXFORD, OX3 0BW (UK), PRICE: UKL 220 (FOR BOTH VOLS.)
Record Number: 1989126042001 / Last updated on: 1989-01-01
Category: PUBLICATION
Available languages: en