Non-linear model-based optimization of actuator trajectories for tokamak plasma profile control

F Felici, O Sauter - Plasma Physics and Controlled Fusion, 2012 - iopscience.iop.org
A computational method is presented to determine the tokamak actuator time evolution
(trajectories) required to optimally reach a given point in the tokamak operating space while …

First-principles-driven model-based current profile control for the DIII-D tokamak via LQI optimal control

MD Boyer, J Barton, E Schuster, TC Luce… - Plasma Physics and …, 2013 - iopscience.iop.org
In tokamak fusion plasmas, control of the spatial distribution profile of the toroidal plasma
current plays an important role in realizing certain advanced operating scenarios. These …

Exploration of the equilibrium operating space for NSTX-Upgrade

SP Gerhardt, R Andre, JE Menard - Nuclear Fusion, 2012 - iopscience.iop.org
This paper explores a range of high-performance equilibrium scenarios achievable with
neutral beam heating in the NSTX-Upgrade device (Menard JE 2012 Nucl. Fusion 52 …

Detection of disruptions in the high-β spherical torus NSTX

SP Gerhardt, DS Darrow, RE Bell, BP LeBlanc… - Nuclear …, 2013 - iopscience.iop.org
This paper describes the prediction of disruptions based on diagnostic data in the high-β
spherical torus NSTX (Ono et al 2000 Nucl. Fusion 40 557). The disruptive threshold values …

Model-predictive kinetic control with data-driven models on EAST

D Moreau, S Wang, JP Qian, Q Yuan, Y Huang… - Nuclear …, 2024 - iopscience.iop.org
In this work, model-predictive control (MPC) was combined for the first time with singular
perturbation theory, and an original plasma kinetic control method based on extremely …

Simulation of profile evolution from ramp-up to ramp-down and optimization of tokamak plasma termination with the RAPTOR code

AA Teplukhina, O Sauter, F Felici, A Merle… - Plasma Physics and …, 2017 - iopscience.iop.org
The present work demonstrates the capabilities of the transport code RAPTOR as a fast and
reliable simulator of plasma profiles for the entire plasma discharge, ie from ramp-up to ramp …

Integrated magnetic and kinetic control of advanced tokamak plasmas on DIII-D based on data-driven models

D Moreau, ML Walker, JR Ferron, F Liu… - Nuclear …, 2013 - iopscience.iop.org
The first real-time profile control experiments integrating magnetic and kinetic variables were
performed on DIII-D in view of regulating and extrapolating advanced tokamak scenarios to …

A general infrastructure for data-driven control design and implementation in tokamaks

J Abbate, R Conlin, R Shousha, K Erickson… - Journal of Plasma …, 2023 - cambridge.org
A general infrastructure for tokamak controllers based on data-driven neural net models is
presented. The paradigm allows for more flexible choices of both the underlying model and …

Lyapunov-based distributed control of the safety-factor profile in a tokamak plasma

FB Argomedo, E Witrant, C Prieur, S Brémond… - Nuclear …, 2013 - iopscience.iop.org
A real-time model-based controller is developed for the tracking of the distributed safety-
factor profile in a tokamak plasma. Using relevant physical models and simplifying …

Toroidal current profile control during low confinement mode plasma discharges in DIII-D via first-principles-driven model-based robust control synthesis

JE Barton, MD Boyer, W Shi, E Schuster… - Nuclear …, 2012 - iopscience.iop.org
In order for ITER to be capable of operating in advanced tokamak operating regimes,
characterized by a high fusion gain, good plasma confinement, magnetohydrodynamic …