Publications related to Modelling of the FPS for the internal coils and investigating controller discretization effects in TCV

Distributed digital real-time control system for TCV tokamak

Olivier Sauter, Basil Duval, Stefano Coda, Jean-Marc Moret, Federico Alberto Alfredo Felici, Damien Fasel, Philippe Marmillod, James Paley, Hoang Bao Le

A new digital feedback control system (named the SCD "Systeme de Controle Distribue") has been developed, integrated and used successfully to control TCV (Tokamak a Configuration Variable) plasmas. The system is designed to be modular, distributed, and sca ...

Elsevier Science Sa2014

Digital Control System for Vertical Stability of the TCV Plasma

In advanced mode operation of fusion devices, real time control plays a central role in achieving the desired plasma performance and minimizing the risk of disruptions. With the advances in digital technologies like Digital Signal Processors (DSPs), Field ...

Universidade de Lisboa, Instituto Superior Técnico2014

A comparison of model-based and data-driven controller tuning

Alireza Karimi, Klaske van Heusden

In many industrial applications, finding a model from physical laws that is both simple and reliable for control design is a hard and time-consuming undertaking. When a set of input/output measurements is available, one can derive the controller directly f ...

Wiley-Blackwell2014

Open-loop control of a separated boundary layer

François Gallaire, Edouard Boujo

Linear optimal gains

G_{opt}(\omega)

are computed for the separated boundary-layer flow past a two-dimensional bump in the subcritical regime. Very large values are found, making it possible for small-amplitude noise to be strongly amplified and to desta ...

Elsevier France-Editions Scientifiques Medicales Elsevier2014

A linearized approach for the control of aerodynamic forces in flow past a square cylinder

François Gallaire, Edouard Boujo, Philippe Meliga

The analysis of Strykowski & Sreenivasan (JFM, 1990) provides experimental evidence that a small control cylinder suitably positioned in the wake of a main cylinder can alter vortex shedding close to the instability threshold. This problem was addressed fr ...

2014

Improved methodology and set-point design for diagnosis of model-plant mismatch in control loops using plant-model ratio

Alireza Karimi

Performance of any model-based control scheme depends on the quality of model. When these schemes deliver poor loop performance due to model-plant mismatch (MPM), a detection of the same needs to be in place. A recently introduced plant model ratio (PMR) n ...

Elsevier2014

Fixed-order Sparse Control of Interconnected Systems with Polytopic Uncertainty

Alireza Karimi

This paper deals with the problem of sparse H-infinity dynamic output-feedback control of LTI interconnected systems with polytopic uncertainty. The main objective is to find a controller structure with minimum information exchange between subsystems and l ...

2014

A real-time control system architecture for industrial power amplifiers

Faran Ahmed Qureshi

Power amplifiers are a highly important component in a range of industrial applications, such as, servo-drives, magnetic resonance imaging, energy systems, and audio. The control system for power amplifiers should satisfy a range of requirements, e. g., of ...

Ieee2013

Model-based and data-driven model-reference control: a comparative analysis

Alireza Karimi, Klaske van Heusden

In many industrial applications, finding a model from physical laws that is both simple and reliable for control design is a hard and time-consuming undertaking. When a set of input/output (I/O) measurements is available, one can derive the controller dire ...

2013

Open-loop control of a separated boundary layer

François Gallaire, Edouard Boujo

Linear optimal gains

G_opt(\omega)

are computed for the separated boundary-layer flow past a two-dimensional bump in the subcritical regime. Very large values are found, making it possible for small-amplitude noise to be strongly amplified and to destabi ...

Cépaduès Editions2013

Modelling of the FPS for the internal coils and investigating controller discretization effects in TCV

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Distributed digital real-time control system for TCV tokamak

Digital Control System for Vertical Stability of the TCV Plasma

A comparison of model-based and data-driven controller tuning

Open-loop control of a separated boundary layer

A linearized approach for the control of aerodynamic forces in flow past a square cylinder

Improved methodology and set-point design for diagnosis of model-plant mismatch in control loops using plant-model ratio

Fixed-order Sparse Control of Interconnected Systems with Polytopic Uncertainty

A real-time control system architecture for industrial power amplifiers

Model-based and data-driven model-reference control: a comparative analysis

Open-loop control of a separated boundary layer

Open-loop control of a separated boundary layer

Digital Control System for Vertical Stability of the TCV Plasma

Open-loop control of a separated boundary layer

Distributed digital real-time control system for TCV tokamak

Model-based and data-driven model-reference control: a comparative analysis

A comparison of model-based and data-driven controller tuning

A linearized approach for the control of aerodynamic forces in flow past a square cylinder

Improved methodology and set-point design for diagnosis of model-plant mismatch in control loops using plant-model ratio

Fixed-order Sparse Control of Interconnected Systems with Polytopic Uncertainty

A real-time control system architecture for industrial power amplifiers