A power circuit design for the poloidal field coils in a torus shaped plasma system

Year 2019, Volume: 3 Issue: 3, 123 - 128, 30.09.2019

Bekir Dursun , Erol Kurt , Mehmet Tekerek

https://doi.org/10.30521/jes.609667

Cited By: 4

Abstract

An initial design for
a power circuit of a new plasma system is proposed and implemented in MatLab
code. The plasma device is a torus and requires an excitement of wires, which
are wrapped around the torus for a toroidal field and a poloidal field coil placed
at the outer part of the device. This poloidal coil structure ignites an
electrical field inside the chamber and that yields to a circular magnetic
field inside the plasma. The proposed electrical design for this poloidal field
equipment has some components including the alternating current unit and the
direct current one. The circuit first uses an ac-dc converter, in order to
transfer the ac grid to the dc one. Then it uses a switching scheme and a
discharge circuit. The operation voltages for the poloidal field are estimated
to be 1 kV, respectively. It has been proven that the designed system can
produce an almost dc current with 66 V fluctuation, which is under the limit of
6%, considering the high voltage of 1kV.

Keywords

Poloidal field, Plasma, Converter

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