Adaptive optimal control of highly dissipative nonlinear spatially distributed processes with neuro-dynamic programming

B Luo, HN Wu, HX Li - IEEE transactions on neural networks …, 2014 - ieeexplore.ieee.org
Highly dissipative nonlinear partial differential equations (PDEs) are widely employed to
describe the system dynamics of industrial spatially distributed processes (SDPs). In this …

Control of the tokamak safety factor profile with time-varying constraints using MPC

E Maljaars, F Felici, MR De Baar, J Van Dongen… - Nuclear …, 2015 - iopscience.iop.org
A controller is designed for the tokamak safety factor profile that takes real-time-varying
operational and physics limits into account. This so-called model predictive controller (MPC) …

Advanced H

YV Orlov, LT Aguilar - Towards Nonsmooth Theory and Applications, New …, 2014 - Springer
The E1-disturbance-attenuation approach to robust control has been an active research
area since the 80th of the last century. If confined to linear systems, this approach is fully …

Approximate optimal control design for nonlinear one-dimensional parabolic PDE systems using empirical eigenfunctions and neural network

B Luo, HN Wu - IEEE Transactions on Systems, Man, and …, 2012 - ieeexplore.ieee.org
This paper addresses the approximate optimal control problem for a class of parabolic
partial differential equation (PDE) systems with nonlinear spatial differential operators. An …

A fast-POD model for simulation and control of indoor thermal environment of buildings

K Li, H Su, J Chu, C Xu - Building and Environment, 2013 - Elsevier
Precise and efficient control strategies of heating, ventilation, and air conditioning (HVAC)
systems need detailed and dynamic indoor environment information, which is hardly …

Optimal Tracking for a Divergent‐Type Parabolic PDE System in Current Profile Control

S Li, H Jiang, Z Ren, C Xu - Abstract and Applied Analysis, 2014 - Wiley Online Library
We consider the optimal tracking problem for a divergent‐type parabolic PDE system, which
can be used to model the spatial‐temporal evolution of the magnetic diffusion process in a …

Backstepping control of the toroidal plasma current profile in the DIII-D tokamak

MD Boyer, J Barton, E Schuster… - … on Control Systems …, 2014 - ieeexplore.ieee.org
One of the most promising devices for realizing power production through nuclear fusion is
the tokamak. To maximize performance, it is preferable that tokamak reactors achieve …

Physics-model-based nonlinear actuator trajectory optimization and safety factor profile feedback control for advanced scenario development in DIII-D

JE Barton, MD Boyer, W Shi, WP Wehner… - Nuclear …, 2015 - iopscience.iop.org
DIII-D experimental results are reported to demonstrate the potential of physics-model-
based safety factor profile control for robust and reproducible sustainment of advanced …

Physics-based control-oriented modeling and robust feedback control of the plasma safety factor profile and stored energy dynamics in ITER

JE Barton, K Besseghir, J Lister… - Plasma Physics and …, 2015 - iopscience.iop.org
Many challenging plasma control problems still need to be addressed in order for the ITER
plasma control system (PCS) to be able to maintain the plasma within a predefined …

Simultaneous closed-loop control of the current profile and the electron temperature profile in the TCV tokamak

JE Barton, WP Wehner, E Schuster… - 2015 American …, 2015 - ieeexplore.ieee.org
Two key properties that are often used to define a plasma operating scenario in nuclear
fusion tokamak devices are the current and electron temperature (T e) profiles due to their …