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Title: DOE SBIR Phase I Final Report: Advanced feedback control of AC plasmas

Abstract

A high speed feedback device has been constructed to provide control on alternating current (AC) plasma drivers with response times on the scale of 10 $$\mu$$s. The prototype device has been built and is ready for initial testing on the Helicity Injected Torus family of experiments at the University of Washington. The HIT-SI3 device studies formation and sustainment of spheromak plasmas through the use of three fully inductive magnetic helicity injectors. These injectors operate through fields generated from two orthogonal coils operated in AC with frequencies ranging from 10-70 kHz. Each injector is driven temporally out of phase from the others to produce non-axisymmetric time-dependent magnetic perturbations on the plasma. A Graphics Processing Unit (GPU) based feedback control system has been implemented to control nonlinear plasma interactions between the different injectors and drive the desired temporal waveform of the injector fields, as an example of applications of this system.

Authors:
ORCiD logo [1]
  1. CTFusion
Publication Date:
Research Org.:
CTFusion
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
Contributing Org.:
University of Washington HIT-SI Research Group
OSTI Identifier:
1542464
Report Number(s):
DOE-CTFUSION-18844
2535082739
DOE Contract Number:  
SC0018844
Type / Phase:
SBIR (Phase I)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Plasma Control; Magnetic Helicity

Citation Formats

Morgan, Kyle. DOE SBIR Phase I Final Report: Advanced feedback control of AC plasmas. United States: N. p., 2019. Web.
Morgan, Kyle. DOE SBIR Phase I Final Report: Advanced feedback control of AC plasmas. United States.
Morgan, Kyle. Mon . "DOE SBIR Phase I Final Report: Advanced feedback control of AC plasmas". United States.
@article{osti_1542464,
title = {DOE SBIR Phase I Final Report: Advanced feedback control of AC plasmas},
author = {Morgan, Kyle},
abstractNote = {A high speed feedback device has been constructed to provide control on alternating current (AC) plasma drivers with response times on the scale of 10 $\mu$s. The prototype device has been built and is ready for initial testing on the Helicity Injected Torus family of experiments at the University of Washington. The HIT-SI3 device studies formation and sustainment of spheromak plasmas through the use of three fully inductive magnetic helicity injectors. These injectors operate through fields generated from two orthogonal coils operated in AC with frequencies ranging from 10-70 kHz. Each injector is driven temporally out of phase from the others to produce non-axisymmetric time-dependent magnetic perturbations on the plasma. A Graphics Processing Unit (GPU) based feedback control system has been implemented to control nonlinear plasma interactions between the different injectors and drive the desired temporal waveform of the injector fields, as an example of applications of this system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {7}
}

Technical Report:
This technical report may be released as soon as July 15, 2023
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that may hold this item. Keep in mind that many technical reports are not cataloged in WorldCat.

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