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Power Inverter Design for Magnetic Perturbation Coils in Nuclear Fusion Experiments
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| Author(s) |
Markus TESCHKE, Wolfgang SUTTROP, Michael ROTT, Nils ARDEN |
| Abstract |
An economical, broad-band switched power inverter for supplying electrical current to magnetic perturbation coils in magnetic confinement nuclear fusion devices is designed and tested. The unit uses commercial IGBT blocks for a load current up to 1.3 kA at a DC-link voltage up to 500 V. Current is controlled by means of an embedded PC with real-time patched Linux operating system and commercial I/O boards. H-bridge and neutral point clamped (NPC) topologies are compared, both with standard and phase-shifted pulse width modulation (PWM). DC to 500 Hz bandwidth is demonstrated with good step response at full output current, making the system suitable for the supply of 16 in-vessel saddle coils of the ASDEX Upgrade tokamak. With multi-level topology and phase-shifted PWM the inverter design can also cover a planned additional coil set with DC to 3kHz bandwidth. |
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| Filename: | 0933-epe2013-full-11144479.pdf |
| Filesize: | 2.537 MB |
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| Type |
Members Only |
| Date |
Last modified 2014-02-09 by System |
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