Concept

Stabilité EBSB

Publications associées (144)

Robust PID Controller Design by Linear Programming

Alireza Karimi, Roland Longchamp, Marc Kunze

A linear programming approach is proposed to tune fixed-order linearly parameterized controllers for stable LTI plants. The method is based on the shaping of the open-loop transfer function in the Nyquist diagram. A lower bound on the crossover frequency a ...

2006

Remarkable Anion and Cation Effects on Stille Reactions in Functionalised Ionic Liquids

Paul Joseph Dyson, Zhaofu Fei, Dongbin Zhao, Cinzia Chiappe

Task-specific ionic liquids bearing nitrile functional groups attached to the cation and nitrogen-donor-containing anions strongly affect the efficiency of the Stille cross-coupling, influencing the nature of the catalyst and its stability. The relative st ...

2006

Design and Control of a Supercapacitor Storage System for Traction Applications

Alfred Rufer, Philippe Barrade

The storage system in this paper is made of supercapacitors. The main goal is to ensure an efficient energy management in a series hybrid vehicle, even if braking resistors are still needed. Design considerations are discussed. In particular the influence ...

2005

The Random Trip Model, Part I: Stability

Jean-Yves Le Boudec, Milan Vojnovic

This document is replaced by "The Random Trip Model: Stability, Stationary Regime, and Perfect Simulation" by the same authors LCA-REPORT-2006-003 href="http://infoscience.epfl.ch/s ...

2005

Protein chemistry on the surface of living cells

Kai Johnsson, Nathalie George

A review. The interplay between carbohydrates, lipids, and proteins dets. the stability and flexibility as well as the adhesive and responsive features of the surfaces of all cells. The mol. understanding of the interactions among and between the different ...

2005

Gyrokinetic global three-dimensional simulations of linear ion-temperature-gradient modes in Wendelstein 7-X

Laurent Villard

Using a global approach for solving an ion gyrokinetic model in three-dimensional geometry the linear stability and structure of ion-temperature-gradient (ITG) modes in the configuration of the stellarator Wendelstein 7-X (W7-X) [G. Grieger , in Plasma Phy ...

2004

Adaptive differential pulse-coded modulation with exponential tracking

Ali H. Sayed

This paper first investigates a companded differential pulse-coded modulator and. derives an expression for its SNR performance. Analysis and simulations show that, the coder has superior SNR and dynamic range performance over other coders of similar compl ...

2003

Approximate Input-Output Linearization of Nonlinear Systems Using the Observability Normal Form

Dominique Bonvin, Kahina Guemghar

Abstract The problem of controlling nonlinear nonminimum-phase systems is considered, where standard input-output feedback linearization leads to unstable internal dynamics. This problem is handled here by using the observability normal form in conjunction ...

2003

Structure preservation: a challenge in computational control

Daniel Kressner, Volker Mehrmann

Current and future directions in the development of numerical methods and numerical software for control problems are discussed. Major challenges include the demand for higher accuracy, robustness of the method with respect to uncertainties in the data or ...

Elsevier2003

Extension of the TCV operating space towards higher elongation and higher normalized current

Olivier Sauter, Stefano Coda, Yves Martin, Jean-Marc Moret, Xavier Llobet, Pierre Lavanchy, Antoine Pochelon, Philippe Marmillod, Andrei Martynov

Recently, an experimental campaign has been launched on TCV with the aim of exploring and extending the limits of the operating space. The vertical position control system has been optimized, with the help of extensive model calculations, in order to allow ...

2002

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