Michael L. Walker

40 papers C 17Journal 8Unranked 15
YearRankTypeTitle / Venue / Authors
2020 C conf
Introduction to Tokamak Plasma Control.
ACC
Michael L. Walker, Peter de Vries, Federico Felici, Eugenio Schuster
2017 — conf
Current profile and energy control in DIII-D plasmas using discrete-time variable-structure control.
MED
Menno Lauret, William Wehner, Eugenio Schuster, Christopher T. Holcomb, Timothy C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys, Benjamin G. Penaflor, Robert D. Johnson
2016 C conf
Online feedforward calculation for plasma shape control in tokamaks with superconducting coils.
CCA
Michael L. Walker, Matthew J. Lanctot, Sang-Hee Hahn
2016 C conf
Predictive control of the tokamak q profile to facilitate reproducibility of high-qmin steady-state scenarios at DIII-D.
CCA
William Wehner, Menno Lauret, Eugenio Schuster, John R. Ferron, Chris Holcomb, Tim C. Luce, David A. Humphreys, Michael L. Walker, Ben G. Penaflor, Robert D. Johnson
2015 — conf
Current profile control for the development of consistent discharges in DIII-D.
CDC
William Wehner, Justin E. Barton, Mark D. Boyer, Eugenio Schuster, Tim C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys, Ben G. Penaflor, Robert D. Johnson
2014 J jnl
Backstepping Control of the Toroidal Plasma Current Profile in the DIII-D Tokamak.
IEEE Trans. Control. Syst. Technol.
Mark D. Boyer, Justin Barton, Eugenio Schuster, Michael L. Walker, Timothy C. Luce, John R. Ferron, Ben G. Penaflor, Robert D. Johnson, David A. Humphreys
2013 C conf
Identification and control of magneto-kinetic response during advanced tokamak scenarios in DIII-D.
ACC
William Wehner, Wenyu Shi, Eugenio Schuster, Didier Moreau, Michael L. Walker, John R. Ferron, Tim C. Luce, David A. Humphreys, Ben G. Penaflor, Robert D. Johnson
2013 C conf
PTRANSP simulation and experimental test of a robust current profile and βN controller for off-axis current drive scenarios in the DIII-D tokamak.
ACC
Wenyu Shi, William Wehner, Justin Barton, Mark D. Boyer, Eugenio Schuster, Arnold Kritz, Didier Moreau, Tim C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys, Ben G. Penaflor, Robert D. Johnson
2013 — conf
Physics-based control-oriented modeling of the safety factor profile dynamics in high performance tokamak plasmas.
CDC
Justin E. Barton, Wenyu Shi, Karim Besseghir, Jo Lister, Arnold Kritz, Eugenio Schuster, Timothy C. Luce, Michael L. Walker, David A. Humphreys, John R. Ferron
2012 — conf
A two-time-scale model-based combined magnetic and kinetic control system for advanced tokamak scenarios on DIII-D.
CDC
Wenyu Shi, William Wehner, Justin Barton, Mark D. Boyer, Eugenio Schuster, Didier Moreau, Timothy C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys, Ben G. Penaflor, Robert D. Johnson
2012 C conf
Backstepping control of the plasma current profile in the DIII-D tokamak.
ACC
Mark D. Boyer, Justin Barton, Eugenio Schuster, Tim C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys, Ben G. Penaflor, Robert D. Johnson
2012 — conf
Current profile tracking for the DIII-D tokamak via LQI optimal control.
CDC
Mark D. Boyer, Justin Barton, Eugenio Schuster, Michael L. Walker, Timothy C. Luce, John R. Ferron, Ben G. Penaflor, Robert D. Johnson, David A. Humphreys
2012 C conf
First-principles model-based robust control of the current profile evolution in the DIII-D tokamak.
ACC
Justin E. Barton, Mark D. Boyer, Wenyu Shi, Eugenio Schuster, Timothy C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys, Ben G. Penaflor, Robert D. Johnson
2012 C conf
Model-based decoupling control of tokamak plasmas.
ACC
Michael L. Walker
2012 C conf
Multivariable robust control of the plasma rotational transform profile for advanced tokamak scenarios in DIII-D.
ACC
Wenyu Shi, William Wehner, Justin Barton, Mark D. Boyer, Eugenio Schuster, Didier Moreau, Tim C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys, Ben G. Penaflor, Robert D. Johnson
2012 C conf
Optimal feedback control of the poloidal magnetic flux profile in the DIII-D tokamak based on identified plasma response models.
ACC
William Wehner, Wenyu Shi, Eugenio Schuster, Didier Moreau, Michael L. Walker, John R. Ferron, Tim C. Luce, David A. Humphreys, Ben G. Penaflor, Robert D. Johnson
2011 C conf
Data-driven modeling and feedback tracking control of the toroidal rotation profile for advanced tokamak scenarios in DIII-D.
CCA
William Wehner, Chao Xu, Eugenio Schuster, Didier Moreau, Didier Mazon, Michael L. Walker, David A. Humphreys, Yongkyoon In
2011 J jnl
Optimal Tracking Control of Current Profile in Tokamaks.
IEEE Trans. Control. Syst. Technol.
Yongsheng Ou, Chao Xu, Eugenio Schuster, Timothy C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys
2011 C conf
Poloidal magnetic flux profile control in tokamaks via normalized coprime factorization robust control.
CCA
Justin Barton, Yongsheng Ou, Chao Xu, Eugenio Schuster, Michael L. Walker
2010 J jnl
Conditions for stabilization of the tokamak plasma vertical instability using only a massless plasma analysis.
Autom.
J. William Helton, Kevin J. McGown, Michael L. Walker
2009 J jnl
On feedback stabilization of the tokamak plasma vertical instability.
Autom.
Michael L. Walker, David A. Humphreys
2009 — conf
Optimal tuning of tokamak plasma equilibrium controllers in the presence of time delays.
CCA/ISIC
Eugenio Schuster, David Sondak, Reza Arastoo, Michael L. Walker, David A. Humphreys
2008 C conf
Closed-loop tracking control of poloidal magnetic flux profile in tokamaks.
ACC
Yongsheng Ou, Chao Xu, Eugenio Schuster, Tim C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys
2008 — conf
Conditions for a massless plasma analysis to predict stabilization of the tokamak plasma vertical instability.
CDC
J. William Helton, Kevin J. McGown, Michael L. Walker
2008 — conf
Extending the RWM stability region by optimal feedback control.
CDC
Joseph N. Dalessio, Eugenio Schuster, David A. Humphreys, Michael L. Walker, Yongkyoon In, Jin-soo Kim
2008 — conf
Open and emerging control problems in tokamak plasma control.
CDC
Michael L. Walker, Eugenio Schuster, Didier Mazon, Didier Moreau
2008 C conf
POD-based optimal control of current profile in tokamak plasmas via nonlinear programming.
ACC
Chao Xu, Joseph N. Dalessio, Yongsheng Ou, Eugenio Schuster, Timothy C. Luce, John R. Ferron, Michael L. Walker, David A. Humphreys
2007 C conf
Extremum-Seeking Finite-Time Optimal Control of Plasma Current Profile at the DIII-D Tokamak.
ACC
Yongsheng Ou, Chao Xu, Eugenio Schuster, Timothy C. Luce, John R. Ferron, Michael L. Walker
2006 — conf
A Multivariable Analysis of the Plasma Vertical Instability in Tokamaks.
CDC
Michael L. Walker, David A. Humphreys
2006 — conf
Model-based Static and Dynamic Filter Application to Resistive Wall Mode Identification and Feedback Control in DIII-D.
CDC
Yongkyoon In, Jin-soo Kim, David A. Humphreys, Michael L. Walker
2006 — conf
Optimal estimation of vessel currents for equilibrium reconstruction enhancement at DIII-D.
CDC
Yongsheng Ou, Eugenio Schuster, John R. Ferron, Michael L. Walker
2005 — conf
On-Line Calculation of Feedforward Trajectories for Tokamak Plasma Shape Control.
CDC/ECC
Michael L. Walker, Robert D. Johnson, James A. Leuer, Ben G. Penaflor
2005 J jnl
Plasma vertical stabilization with actuation constraints in the DIII-D tokamak.
Autom.
Eugenio Schuster, Michael L. Walker, David A. Humphreys, Miroslav Krstic
2004 C conf
Toward the implementation of an anti-windup scheme for vertical and shape control in the DIII-D Tokamak.
ACC
Eugenio Schuster, Michael L. Walker, David A. Humphreys, Miroslav Krstic
2003 — conf
Antiwindup scheme for plasma shape control with rate and magnitude actuation constraints in the DIII-D tokamak.
CDC
Eugenio Schuster, Miroslav Krstic, Michael L. Walker, David A. Humphreys
2003 C conf
Plasma vertical stabilization in the presence of coil voltage saturation in the DIII-D tokamak.
ACC
Eugenio Schuster, Michael L. Walker, David A. Humphreys, Miroslav Krstic
2003 — conf
Some nonlinear controls for nonlinear processes in the DIII-D tokamak.
CDC
Michael L. Walker, David A. Humphreys, Eugenio Schuster
2001 J jnl
A control scheme to deal with coil current saturation in a Tokamak.
IEEE Trans. Control. Syst. Technol.
Giuseppe Ambrosino, Marco Ariola, Alfredo Pironti, Alfredo Portone, Michael L. Walker
1994 J jnl
Application of signal subspace algorithms to scattered geometric optics and edge-diffracted signals.
IEEE Trans. Signal Process.
Michael L. Walker, J. William Helton
1993 J jnl
H
IEEE Trans. Autom. Control.
Joseph A. Ball, J. William Helton, Michael L. Walker