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TJ-II:Power supply: Difference between revisions
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[[File:TJ-II_Installation_flywheel.jpg|400px|thumb| | [[File:TJ-II_Installation_flywheel.jpg|400px|thumb|right|Installation of the TJ-II flywheel generator]] | ||
The generation of the magnetic field during a [[TJ-II]] discharge requires a total amount of power of almost 50 MW. | |||
This power is supplied by the national grid and a 140 MW flywheel generator (100 MJ, 15 kV, 100 Hz). | |||
As the TJ-II loads require a direct current, a set of [[:Wikipedia:Thyristor|thyristor]] converters, transformers and circuit breakers are used for each coil system. | |||
The power requirements range from 5 kA (100 V) to 32 kA (1000 V). | |||
The heating systems ([[TJ-II:Electron Cyclotron Resonant Heating|ECRH]] and [[TJ-II:Neutral Beam Injection|NBI]]) load the power supply with additional 15 MW. | |||
<ref>A. Pérez et al, '' Power supply for the Spanish Stellarator TJ-II, design, construction and tests'', [[doi:10.1109/FUSION.1995.534410|Fusion Engineering, Proc. SOFE 1995. ''Seeking a New Energy Era'', 16<sup>th</sup> IEEE/NPSS Symposium, '''2''' (1995) 1066-1069]]</ref> | |||
<ref>A. Pérez et al, ''Current ripple in the coils of the TJ-II Spanish stellarator'', [[doi:10.1109/FUSION.1995.534411|Fusion Engineering, Proc. SOFE 1995. ''Seeking a New Energy Era'', 16<sup>th</sup> IEEE/NPSS Symposium, '''2''' (1995) 1070-1073]]</ref> | |||
<ref>P. Méndez, ''High power IGBT bridge application for the harmonic suppression on the load side of the power supply system of the Spanish Stellarator TJ-II'', [[doi:10.1016/j.fusengdes.2005.06.089|Fusion Engineering and Design '''75-79''' (2005) 123-126]]</ref> | |||
<ref>J. Izquierdo et al, ''Reliability of the TJ-II power supply system: Collection and analysis of the operational experience data'', [[doi:10.1016/j.fusengdes.2007.05.016|Fusion Engineering and Design '''82''', Issues 15-24 (2007) 2765-2771]]</ref> | |||
[[File:TJ-II_flywheel.JPG|400px|thumb|right|The TJ-II flywheel generator]] | [[File:TJ-II_flywheel.JPG|400px|thumb|right|The TJ-II flywheel generator]] | ||
Recently, the configurational flexibility of the TJ-II has been broadened by the commissioning of a new mode of operation that allows magnetic configurations to be varied dynamically during the discharge flat-top. In order to achieve this, new hardware and software features have been added to the TJ-II Control System. | |||
<ref>A. de la Peña, ''A real-time current driving control system for the TJ-II coils'', [[doi:10.1016/j.fusengdes.2008.12.010|Fusion Engineering and Design '''84''', Issues 2-6 (2009) 676-680]]</ref> | |||
== References == | |||
<references /> | |||