eprintid: 1206 rev_number: 8 eprint_status: archive userid: 37 dir: disk0/00/00/12/06 datestamp: 2012-03-02 14:54:31 lastmod: 2013-09-30 12:37:55 status_changed: 2012-03-02 14:54:31 type: article metadata_visibility: show creators_name: Rubagotti, Matteo creators_name: Estrada, Antonio creators_name: Castanos, Fernando creators_name: Ferrara, Antonella creators_name: Fridman, Leonid title: Integral sliding mode control for nonlinear systems with matched and unmatched perturbations ispublished: pub subjects: QA75 divisions: CSA full_text_status: none keywords: disturbance term reduction; dynamically feedback linearized unicycle; input matrix; integral sliding mode control; matched perturbations; nonholonomic constraints; nonlinear systems; state-dependent drift; unmatched perturbations;control system synthesis;feedback;linear systems;matrix algebra;nonlinear control systems;variable structure systems; abstract: We consider the problem of designing an integral sliding mode controller to reduce the disturbance terms that act on nonlinear systems with state-dependent drift and input matrix. The general case of both, matched and unmatched disturbances affecting the system is addressed. It is proved that the definition of a suitable sliding manifold and the generation of sliding modes upon it guarantees the minimization of the effect of the disturbance terms, which takes place when the matched disturbances are completely rejected and the unmatched ones are not amplified. A simulation of the proposed technique, applied to a dynamically feedback linearized unicycle, illustrates its effectiveness, even in presence of nonholonomic constraints. date: 2011-11 date_type: published publication: IEEE Transactions on Automatic Control volume: 56 number: 11 publisher: IEEE pagerange: 2699 -2704 id_number: 10.1109/TAC.2011.2159420 refereed: TRUE issn: 0018-9286 official_url: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5873128&isnumber=6062566 citation: Rubagotti, Matteo and Estrada, Antonio and Castanos, Fernando and Ferrara, Antonella and Fridman, Leonid Integral sliding mode control for nonlinear systems with matched and unmatched perturbations. IEEE Transactions on Automatic Control, 56 (11). 2699 -2704. ISSN 0018-9286 (2011)