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Abstract

The regulated high voltage power supply (RHVPS) which energises the gyrotrons used in the ECRH system of TCV is based on PSM (pulse step modulator) technology. The RHVPS is designed to minimise active and reactive losses, and to ensure an easy operation with high reliability and low maintenance. RHVPS based on PSM technology has a high energy conversion factor (95 %) and a low rejection of harmonics in the power grid. A crowbar is not necessary due to the high reliability and the very fast switch-off of the high voltage of the system. The modular conception minimises the number of spare parts. The RHVPS is extremely compact (less than 200 m3 for a 6.5 MW unit). For operation at low duty cycle (as in this case, 1 %), no cooling is required. The design of the RHVPS will be discussed and the results of the factory tests on a resistive load are presented.

Additional information

Authors: BESSON G, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);PAHUD J D, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);TRAN M Q, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne (CH);SCHMINKE W, Thomcast AG, Turgi (CH);TOMLJENOVIC N, Thomcast AG, Turgi (CH)
Bibliographic Reference: Article: Fusion Technology 1994 : Proceedings of the 18th Symposium on Fusion Technology, Karlsruhe, Germany, 22-26 August 1994, Vol. 1 (1994) pp. 517-520
Record Number: 199511178 / Last updated on: 1995-10-10
Category: PUBLICATION
Original language: en
Available languages: en
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