Publications by Sébastien Gros

Neighboring-Extremal Control for Singular Dynamic Optimization Problems. II- Multiple-Input Systems

Sébastien Gros, Dominique Bonvin, Benoît Chachuat

Dynamic optimization provides a unified framework for improving process operations while taking operational constraints into account. In the presence of uncertainty, measurements can be incorporated into the optimization framework for tracking the optimum. ...

2009

Optimizing Control Based on Output Feedback

Sébastien Gros, Dominique Bonvin

In the framework of process optimization, the use of measurements to compensate the effect of uncertainty has re-emerged as an active area of research. One of the ideas therein is to adapt the inputs in order to track the active constraints and push certai ...

2009

Neighboring-Extremal Control for Singular Dynamic Optimization Problems. I-Single-Input Systems

Sébastien Gros, Dominique Bonvin, Benoît Chachuat

A powerful approach for dynamic optimization in the presence of uncertainty is to incorporate measurements into the optimization framework so as to track the optimum. For nonsingular control problems, this can be done by tracking active constraints along b ...

2009

NCO Tracking for Singular Control Problems Using Neighboring Extremals

Sébastien Gros, Dominique Bonvin, Benoît Chachuat

A powerful approach for dynamic optimization in the presence of uncertainty is to incorporate measurements into the optimization framework so as to track the necessary conditions of optimality (NCO), the so-called NCO- tracking approach. For nonsingular co ...

2008

Neighboring extremals in optimization and control

Sébastien Gros

Optimization arises naturally when process performance needs improvement. This is often the case in industry because of competition – the product has to be proposed at the lowest possible cost. From the point of view of control, optimization consists in de ...

EPFL2007

Robust Predictive Control Based on Neighboring Extremals

Sébastien Gros, Dominique Bonvin

The performance of a predictive controller is typically poor when the true plant evolution deviates significantly from that predicted by the model. A robust control approach that considers model uncertainty explicitly is then needed. However, it is often d ...

2006

Static Optimization via Tracking of the Necessary Conditions of Optimality using Neighboring Extremals

Sébastien Gros, Dominique Bonvin

2005

A Two-Time-Scale Control Scheme for Fast Unconstrained Systems

Sébastien Gros, Dominique Bonvin, Philippe Müllhaupt, Davide Buccieri

2007