## Journal Papers

- J.E. Barton, K. Besseghir, J. Lister and
**E. Schuster**,
Physics-based control-oriented modeling and robust feedback control of the plasma safety factor profile and stored energy dynamics in ITER,
*Plasma Physics and Controlled Fusion*, 57 115003 (2015).
- J.E. Barton, M.D. Boyer, W. Shi, W.P. Wehner,
**E. Schuster**, J.R. Ferron, M.L. Walker, D.A. Humphreys, T.C. Luce, F. Turco, B.G. Penaflor and R.D. Johnson,
Physics-model-based nonlinear actuator trajectory optimization and safety factor profile feedback control for advanced scenario development in DIII-D,
*Nuclear Fusion* 55 (2015) 093005 (20pp).
- M.D. Boyer and
**E. Schuster**,
Nonlinear Burn Condition Control in Tokamaks Using Isotopic Fuel Tailoring,
*Nuclear Fusion* 55 (2015) 083021 (24pp).
- R. J. Buttery et al. (Collaboration Paper),
DIII-D Research to Address Key Challenges for ITER and Fusion Energy,
*Nuclear Fusion* 55 (2015) 104017.
- S. Coda,
**(E. Schuster)** et al. (Collaboration Paper),
The Science Program of the TCV Tokamak: Exploring Fusion Reactor and Power Plant Concepts,
*Nuclear Fusion* 55 (2015) 104004 (10pp).
- S. Kaye,
**(E. Schuster)** et al. (Collaboration Paper),
An Overview of Recent Physics Results from NSTX,
*Nuclear Fusion* 55 (2015) 104002 (18pp).
- D. Humphreys, G. Ambrosino, P. de Vries, F. Felici, S.H. Kim, G. Jackson, A. Kallenbach, E. Kolemen, J. Lister, D. Moreau, A. Pironti, G. Raupp, O. Sauter,
**E. Schuster**, J. Snipes, W. Treutterer, M. Walker, A. Welander, A. Winter, L. Zabeo,
Novel Aspects of Plasma Control in ITER,
*Physics of Plasmas* 22, 021806 (2015).
- M.D. Boyer and
**E. Schuster**,
Nonlinear Control and Online Optimization of the Burn Condition in ITER via Heating, Isotopic Fueling, and Impurity Injection,
*Plasma Physics and Controlled Fusion* 56 (2014).
- M.D. Boyer, J. Barton,
**E. Schuster**, M.L. Walker, T.C. Luce, J.R. Ferron, B.G. Penaflor, R.D. Johnson and D.A. Humphreys,
Backstepping Control of the Toroidal Plasma Current Profile in the DIII-D Tokamak,
*IEEE Transactions on Control Systems Technology*, vol. 22, no. 5, pp. 1725-1739, September 2014.
- W. Treutterer, D. Humphreys, G. Raupp,
**E. Schuster**, J. Snipes, G. De Tommasi, M. Walker, A. Winter,
Architectural Concept for the ITER Plasma Control System,
*Fusion Engineering and Design*, vol. 89, no. 5, pp. 512-517, May 2014.
- Z.O. Ilhan, D. Huxley-Cohen, H. Wang,
**E. Schuster**, M. Gilmore, and A. Ware,
Optimal Control of the Plasma Azimuthal Velocity Profile by Feedback ExB Actuation in HELCAT,
*IEEE Transactions on Plasma Science*, vol. 42, no. 3, pp. 469-476, March 2014.
- Z.O. Ilhan, Q. Wang, J. Barry, D. Huxley-Cohen, H. Wang,
**E. Schuster**, S. Xie, M. Gilmore, and A. Ware,
Extremum-Seeking-Based Fluctuation Mitigation and Azimuthal Velocity Profile Regulation by ExB Actuation in HELCAT,
*IEEE Transactions on Plasma Science*, vol. 42, no. 3, pp. 458-468, March 2014.
- M.D. Boyer, J. Barton,
**E. Schuster**, T.C. Luce, J.R. Ferron, M.L. Walker, D.A. Humphreys, B.G. Penaflor and R.D. Johnson,
First-Principles-Driven Model-Based Current Profile Control for the DIII-D Tokamak via LQI Optimal Control,
*Plasma Physics and Controlled Fusion* 55 (2013) 105007 (18pp).
- C. Xu and
**E. Schuster**,
Low-dimensional Modeling of Linear Heat Transfer Systems Using the Incremental Proper Orthogonal Decomposition Method,
*Asia-Pacific Journal of Chemical Engineering* vol. 8, no. 4, p. 473-482, 2013.
- C. Xu, Z-G. Ren, Y. Ou,
**(E. Schuster)** and X. Yu,
Pseudospectral expansion-based model reduction for control and boundary observation of unstable parabolic partial differential equations,
*Kongzhi Lilun Yu Yingyong/Control Theory and Applications* v 30, n 7, p 793-800, July 2013.
- D.N. Hill,
**(E. Schuster)** et al. (Collaboration Paper),
Research Toward Resolving Key Issues for ITER and Steady-State Tokamaks,
*Nuclear Fusion* 53 (2013) 104001 (18pp).
- S.A. Sabbagh,
**(E. Schuster)** et al. (Collaboration Paper),
Overview of Physics Results from the National Spherical Torus Experiment,
*Nuclear Fusion* 53 (2013) 104007 (23pp).
- D. Moreau, M.L. Walker, J.R. Ferron, F. Liu,
**E. Schuster**, J.E. Barton, M.D. Boyer, K.H. Burrell, S.M. Flanagan,P. Gohil, R.J. Groebner, C.T. Holcomb, D.A. Humphreys, A.W. Hyatt, R.D. Johnson, R.J. La Haye, J. Lohr, T.C. Luce, J.M. Park, B.G. Penaflor, W. Shi, F. Turco, W. Wehner and the ITPA-IOS group members and experts,
Integrated Magnetic and Kinetic Control of Advanced Tokamak Scenarios Based on Data-Driven Models,
*Nuclear Fusion* 53 (2013) 063020 (14pp).
- C. Xu, Y. Ou,
**(E. Schuster)** and X. Yu,
Computing open-loop optimal control of the q-profile in ramp-up tokamak plasmas using the minimal-surface theory,
*Plasma Science and Technology* v 15, n 5, p 403-410, May 2013.
- J. Barton, M.D. Boyer, W. Shi,
**E. Schuster**, T.C. Luce, J.R. Ferron, M.L. Walker, D.A. Humphreys, B.G. Penaflor and R.D. Johnson,
Toroidal Current Profile Control During Low Confinement Mode Plasma Discharges in DIII-D via First-Principles-Driven Model-based Robust Control Synthesis,
*Nuclear Fusion* 52 (2012) 123018 (24pp).
- W. Wehner and
**E. Schuster**,
Control-oriented Modelling for Neoclassical Tearing Mode Stabilization via Minimum-seeking Techniques,
*Nuclear Fusion* 52 (2012) 074003 (13pp).
- J. Barton, Y. Ou, C. Xu,
**E. Schuster** and M.L. Walker,
Simserver Simulation of a Model-Based Current Profile Controller in the DIII-D Plasma Control System,
*Fusion Engineering and Design*, 86 (2011) 1116-1119.
- W. Shi, M. Alsarheed,
**E. Schuster**, M.L. Walker, J. Leuer, D.A. Humphreys and D.A. Gates,
Multivariable Model-based Shape Control for the National Spherical Torus Experiment (NSTX),
*Fusion Engineering and Design*, 86 (2011) 1107-1111.
- D. Sondak, R. Arastoo,
**E. Schuster** and M.L. Walker,
Remediation of Time-Delay Effects in Tokamak Axisymmetric Control Loops by Optimal Tuning and Robust Predictor Augmentation ,
*Fusion Engineering and Design* 86 (2011) 1112-1115.
- R. Raman,
**(E. Schuster)** et al. (Collaboration Paper),
Overview of Physics Results from NSTX,
*Nuclear Fusion* 51 (2011) 094011 (18pp).
- C.M. Greenfield,
**(E. Schuster)** et al. (Collaboration Paper),
DIII-D Contributions Toward the Scientific Basis for Sustained Burning Plasmas,
*Nuclear Fusion* 51 (2011) 094009 (17pp).
- D. Moreau, D. Mazon, M.L. Walker, J.R. Ferron, K.H. Burrell, S.M. Flanagan, P. Gohil, R.J. Groebner, A.W. Hyatt, R.J. La Haye, J. Lohr, F. Turco,
**E. Schuster**, Y. Ou, C. Xu, Y. Takase, Y. Sakamoto, S. Ide, T. Suzuki and ITPA-IOS group members and experts,
Plasma Models for Real-time Control of Advanced Tokamak Scenarios,
*Nuclear Fusion* 51 (2011) 063009 (14pp).
- Y. Ou, C. Xu,
**E. Schuster**, T. C. Luce, J. R. Ferron, M. L. Walker and D. A. Humphreys,
Optimal Tracking Control of Current Profile in Tokamaks,
*IEEE Transactions on Control Systems Technology*, vol. 19, no. 2, pp. 432-441, March 2011.
- C. Xu, Y. Ou and
**E. Schuster**,
Sequential Linear Quadratic Control of Bilinear Parabolic PDEs based on POD Model Reduction,
*Automatica*, vol. 47, no. 2, pp. 418-426, February 2011.
- Y. Ou, C. Xu,
**E. Schuster**, J. R. Ferron, T. C. Luce, M. L. Walker and D. A. Humphreys,
Receding-Horizon Optimal Control of the Current Profile Evolution During the Ramp-Up Phase of a Tokamak Discharge,
*Control Engineering Practice*, 19 (2011) 22-31.
- Y. Ou, C. Xu and
**E. Schuster**,
Robust Control Design for the Poloidal Magnetic Flux Profile Evolution in the Presence of Model Uncertainties,
*IEEE Transactions on Plasma Science*, vol. 38, no. 3, pp. 375-382, March 2010.
- C. Xu, Y. Ou and
**E. Schuster**,
Transport Parameter Estimations of Plasma Transport Dynamics using the Extended Kalman Filter,
*IEEE Transactions on Plasma Science*, vol. 38, no. 3, pp. 359-364, March 2010.
- C. Xu, J. Dalessio, Y. Ou,
**E. Schuster**, T.C. Luce, J.R. Ferron, M.L. Walker and D.A. Humphreys,
Ramp-Up Phase Current Profile Control of Tokamak Plasmas via Nonlinear Programming,
*IEEE Transactions on Plasma Science*, vol. 38, no. 2, pp. 163-173, February 2010.
- R. Vazquez,
**E. Schuster** and M. Krstic,
A Closed-Form Full-State Feedback Controller for Stabilization of 3D Magnetohydrodynamic Channel Flow,
*ASME Journal of Dynamic Systems, Measurement and Control*, 131, 041001 (2009).
- J. Dalessio,
**E. Schuster**, D. Humphreys, M. Walker, Y. In and J.S. Kim,
Model-based Control of the Resistive Wall Mode in DIII-D: A Comparison Study,
*Fusion Engineering and Design*, v 84, n 2-6, p 641-645, June 2009.
- D.A. Gates,
**(E. Schuster)** et al. (Collaboration Paper),
Overview of results from the National Spherical Torus Experiment (NSTX),
*Nuclear Fusion* 49 (2009) 104016 (14pp).
- E.J. Strait,
**(E. Schuster)** et al. (Collaboration Paper),
DIII-D Research in Support of ITER,
*Nuclear Fusion* 49 (2009) 104008 (15pp).
- J. Dalessio,
**E. Schuster**, D. Humphreys, M. Walker, Y. In and J.S. Kim,
Model-based Robust Control of Resistive Wall Modes via mu-synthesis,
*Fusion Science and Technology*, v 55, n 2, February, 2009, p 163-179.
- F. Si, C. E. Romero, Z. Yao,
**E. Schuster**, Z. Xu, R. L. Morey and B. N. Liebowitz,
Optimization of coal-fired boiler SCRs based on modified support vector machine models and genetic algorithms,
*Fuel*, 88 (2009) 806-816.
- R. Vazquez,
**E. Schuster** and M. Krstic,
Magnetohydrodynamic State Estimation with Boundary Sensors,
*Automatica*, 44 (2008) 2517-2527.
**E. Schuster**, L. Luo, and M. Krstic,
MHD Channel Flow Control in 2D: Mixing Enhancement by Boundary Feedback,
*Automatica* 44 (2008) 2498-2507.
- Y. Ou, C. Xu,
**E. Schuster**, T.C. Luce, J.R. Ferron, M.L. Walker and D.A. Humphreys,
Extremum-Seeking Open-Loop Optimal Control of Plasma Current Profile at the DIII-D Tokamak,
*Plasma Physics and Controlled Fusion* 50 (2008) 115001.
- J. Woodby,
**E. Schuster**, G. Bateman, A. Kritz,
Model for Current Drive Stabilization of Neoclassical Tearing Modes,
*Physics of Plasmas* 15, 092504 (2008).
- N.A. Lynch, C.D. Onal,
** E. Schuster** and M. Sitti,
Vision-Based Feedback Strategy for Controlled Pushing of Microparticles,
*Journal of Micro-Nano Mechatronics*, Volume 4, Issue 1, pp 73-83, November 2008.
- C. Xu,
**E. Schuster**, R. Vazquez and M. Krstic,
Stabilization of Linearized 2D Magnetohydrodynamic Channel Flow by Backstepping Boundary Control,
*Systems & Control Letters* 57 (2008) 805-812.
**E. Schuster**, C. Xu, N. Torres, E. Morinaga, C. Allen and M. Krstic,
Beam matching adaptive control via extremum seeking,
*Nuclear Instruments and Methods in Physics Research A*, v 581, n 3, Nov. 2007, p 799-815.
- Y. Ou, M.L. Walker,
**E. Schuster** and J.R. Ferron,
Equilibrium Reconstruction Improvement via Kalman-filter-based Vessel Current Estimation at DIII-D,
*Fusion Engineering and Design*, v 82, n 5-14, Oct. 2007, p 1144-52.
- Y. Ou, T.C. Luce,
**E. Schuster**, J.R. Ferron, M.L. Walker, C. Xu, and D.A. Humphreys,
Towards Model-based Current Profile Control at DIII-D,
*Fusion Engineering and Design*, v 82, n 5-14, Oct. 2007, p 1153-60.
- D.A. Humphreys, J.R. Ferron, M. Bakhtiari, J.A. Blair, Y. In, G.L. Jackson, H. Jhang, R.D. Johnson, J.S. Kim, R.J. LaHaye, J.A. Leuer, B.G. Penaflor,
**E. Schuster**, M.L.Walker, H. Wang, A.S.Welander and D.G. Whyte,
Development of ITER-relevant plasma control solutions at DIII-D,
*Nuclear Fusion* 47 (2007) 943-951.
- M.R. Wade,
**(E. Schuster)** et al. (Collaboration Paper),
Development in the DIII-D Tokamak of Advanced Operating Scenarios and Associated Control Techniques for ITER,
*Nuclear Fusion* 47 (2007) S543-S562.
- M.L. Walker, D.A. Humphreys, D. Mazon, D. Moreau, M. Okabayashi, T.H. Osborne,
**E. Schuster**,
Emerging Applications in Tokamak Plasma Control: Control Solutions for Next Generation Tokamaks,
IEEE Control System Magazine, vol. 26, no. 2, pp. 35-63, 2006.
**E. Schuster**, M.L. Walker, D.A. Humphreys and M. Krstic,
Plasma vertical stabilization with actuation constraints in the DIII-D tokamak,
*Automatica*, 41, pp. 1173-1179, Jan. 2005.
- M.L. Walker, J.R. Ferron, D.A. Humphreys, R.D. Johnson, J.A. Leuer, B.G. Penaflor, A. Pironti, M. Ariola and
**E. Schuster**,
Next-Generation Plasma Control in the DIII-D Tokamak,
*Fusion Engineering and Design*, 66-68, pp.749-753, Sept. 2003.
**E. Schuster** and M. Krstic,
Control of a Nonlinear PDE System Arising from Non-Burning Tokamak Plasma Transport Dynamics,
*International Journal of Control*, vol.76, no.11, pp. 1116-1124, July 2003.
**E. Schuster**, M. Krstic and G. Tynan,
Burn Control in Fusion Reactors via Nonlinear Stabilization Techniques,
*Fusion Science and Technology*, vol.43, no.1, pp. 18-37, January 2003.
**E. Schuster**, M. Krstic and G. Tynan,
Nonlinear Lyapunov-Based Burn Control in Fusion Reactors,
*Fusion Engineering and Design*, 63-64, pp.569-575, 2002.