Limiter-Coil Current Controller for Flux-Coil Generated FRC

Abstract

This paper describes the Limiter-Coil Current Controller for the Flux-Coil Generated Field-Reversed Configuration plasma confinement device. It provides independent current regulation for each pair of limiter-coils, allowing control of the magnetic field profile along the horizontal axis of the chamber. A power circuit description and the main principles of the control system design and operation of the proposed Current Controller are presented. The experimental results demonstrate that controllability of radial position as well as positioning the plasma in the center of device has been achieved by using the developed system.