Self-oscillations in dynamic systems

LT Aguilar, I Boiko, L Fridman, R Iriarte - A New Methodology via Two …, 2015 - Springer
This book began with a question asked by Professor Luis T. Aguilar to Professor Leonid
Fridman in 2005: How can I generate oscillations of low frequency and particular amplitude …

Analysis of sliding-mode control systems with relative degree altering perturbations

T Posielek, K Wulff, J Reger - Automatica, 2023 - Elsevier
We consider sliding-mode control systems subject to unmatched perturbations. Classical
first-order sliding-mode techniques are capable to compensate unmatched perturbations if …

Compensation of unmatched disturbances via sliding-mode control: A comparison of classical results and recent methods using integral and higher-order sliding …

K Wulff, T Posielek, J Reger - … -Structure Systems and Sliding-Mode Control …, 2020 - Springer
We study the disturbance rejection properties of recent and classical sliding-mode
approaches with respect to unmatched disturbances. We consider nonlinear systems with …

Two relay controller for real time trajectory generation and its application to inverted orbital stabilization of inertia wheel pendulum via quasi‐continuous HOSM

A Estrada, LT Aguilar, R Iriarte… - Asian Journal of …, 2012 - Wiley Online Library
A quasi‐continuous high‐order sliding mode (QC‐HOSM) control is developed to solve the
tracking control problem for an inertia wheel pendulum. A first step towards the solution of …

Robust output regulation with exact unmatched uncertainties compensation based on HOSM observation

AF de Loza, F Bejarano… - Proceedings of the 48h …, 2009 - ieeexplore.ieee.org
This manuscript tackles the regulation problem of linear time invariant systems with
unmatched perturbations. A high order sliding mode observer is used allowing theoretically …

Analysis of sliding-mode control systems with unmatched disturbances altering the relative degree

T Posielek, K Wulff, J Reger - IFAC-PapersOnLine, 2020 - Elsevier
We consider sliding-mode control systems subject to unmatched disturbances. Classical first-
order sliding-mode techniques are capable to compensate unmatched disturbances if …

Disturbance decoupling using a novel approach to integral sliding-mode

T Posielek, K Wulff, J Reger - 2018 15th International Workshop …, 2018 - ieeexplore.ieee.org
We propose a novel approach to design an integral sliding mode control (ISMC) for a
nonlinear system in regular form. The control method is capable to compensate a class of …

A Review on Self-oscillating Relay Feedback Systems and Its Application to Underactuated Systems with Degree of Underactuation One

LT Aguilar, I Boiko, L Fridman, R Iriarte - Advances in Sliding Mode Control …, 2013 - Springer
A tool for the design of a periodic motion in underactuated systems via generating a self-
excited oscillation of a desired amplitude and frequency driven by a variable structure …

Nested backward compensation of unmatched effects of unknown inputs based on HOSM identification

A Ferreira, E Punta - 2010 11th International Workshop on …, 2010 - ieeexplore.ieee.org
The paper considers the regulation problem of linear time invariant systems with unmatched
perturbations. The proposed methodology exploits a high order sliding mode observer …

[PDF][PDF] Analysis of Sliding-Mode Control Systems with Unmatched Disturbances Altering the Relative Degree

TPK Wulff, J Reger, T Posielek, K Wulff - 2020 - db-thueringen.de
Analysis of Sliding-Mode Control Systems with Unmatched Disturbances Altering the Relative
Degree Page 1 IFAC PapersOnLine 53-2 (2020) 5122–5128 ScienceDirect Available online …