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Concept

Système à minimum de phase

Publications associées (27)

Multivariable-PI-based DQ Current Control of Voltage Source Converters with Superior Axes Decoupling Capability

Alfred Rufer, Stephan Kenzelmann, Behrooz Bahrani

This paper presents a linear direct-quadrature (dq) current control strategy for voltage source converters (VSCs) in a rotating reference frame (RRF). The described method is based on Multivariable proportional-integral (PI) regulators and provides fast dy ...

Institute of Electrical and Electronics Engineers2011

Interactive applications to explore the parametric space of multivariable controllers

Roland Longchamp, Yves Henri Philippe Piguet

This paper describes interactive applications used to illustrate an advanced course on multivariable control. The direct manipulation of features in graphics, such as eigenvectors in the phase plane or observer eigenvalues in the complex plane, gives the s ...

2011

Model-Free Precompensator Tuning Based on the Correlation Approach

Alireza Karimi, Roland Longchamp

High performance output tracking can be achieved by precompensator or feedforward controllers based on the inverse of either the closed-loop system or the plant model, respectively. However, it has been shown that these inverse controllers can adversely af ...

2008

Data-driven controller tuning with integrated stability constraint

Dominique Bonvin, Alireza Karimi

This paper presents a data-driven controller-tuning algorithm that includes a sufficient condition for closed-loop stability. This stability condition is defined by a set of convex constraints on the Fourier transform of specific auto- and cross-correlatio ...

IEEE2008

Preferential estimation

Levente Bodizs

State estimation is a necessary component of advanced monitoring and control techniques, since these techniques often require information that is too expensive or impossible to obtain from direct measurements. The objective of estimation is the reconstruct ...

EPFL2008

Data-driven Precompensator Tuning for Linear Parameter Varying Systems

Alireza Karimi, Roland Longchamp

Methods for direct data-driven tuning of the parameters of precompensators for LPV systems are developed. Since the commutativity property is not always satisfied for LPV systems, previously proposed methods for LTI systems that use this property cannot be ...

IEEE2008

PID controller design with constraints on sensitivity functions using loop slope adjustment

Alireza Karimi, Roland Longchamp, Daniel Garcia

This paper presents a PID controller design method for stable minimum- phase systems. The approach is similar to the one proposed in the so-called modified Ziegler- Nichols method, where only one point on the frequency response of the plant is measured and ...

2006