Design and realization of JT-60SA Fast Plasma Position Control Coils power supplies
| Autor: | Makoto Matsukawa, Marco Portesine, Ander Dorronsoro, Pietro Zito, Luca Novello, Alessandro Lampasi, Dionisio Vian, Katsuhiro Shimada, A. Coletti, D. Cinarelli |
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| Přispěvatelé: | Lampasi, A., Zito, P. |
| Rok vydání: | 2015 |
| Předmět: |
Power supply
Crowbar Materials science AC/DC converter Mechanical Engineering Feed forward In vessel coil JT-60SA law.invention Nuclear Energy and Engineering Control theory law Electromagnetic coil Overvoltage Vertical direction General Materials Science Vertical displacement Transformer Civil and Structural Engineering Voltage |
| Zdroj: | Fusion Engineering and Design. :1191-1196 |
| ISSN: | 0920-3796 |
| Popis: | Fast Plasma Position Control Coils (FPPCC) PSs control the vertical position of the plasma during a plasma shot, to prevent Vertical Displacement Event (VDE), using FPPC coils installed in vacuum vessel for JT-60SA. For this task, the FPPCC PSs have to be very fast for reacting to plasma movements. Further, an open loop feed forward voltage control is adopted in order to achieve a fast control of FPPCC PSs. The main characteristics are: 4-quadrant AC/DC converter 12-pulse with circulating current, DC load voltage ±1000 V and DC load current ±5 kA. The overvoltage induced by FPPC coil during a plasma disruption can reach 10 kV and it is protected by a nonlinear resistor in parallel to the crowbar up to its intervention. All these technical characteristics have strongly influenced the design of the FPPCC converter and transformers which have been validated by simulation model of FPPCC PS. The outcomes of the simulation allowed to finalize the performances and dynamic behavior of voltage response. © 2015 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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