Improved discrete-time sliding-mode position control using euler velocity estimation / Veselic, Boban in IEEE transactions on industrial electronics, Vol. 57 N° 11 (Novembre 2010)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3840 - 3847 Titre : Improved discrete-time sliding-mode position control using euler velocity estimation Type de document : texte imprimé Auteurs : Veselic, Boban, Auteur ; Perunicic-Drazenovic, Branislava, Auteur ; Milosavljevic, Cedomir, Auteur Année de publication : 2011 Article en page(s) : pp. 3840 - 3847 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Discrete-time sliding-mode control (DTSMC) Induction motors (IMs) Position Servo systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a design of digitally controlled positional systems with Euler velocity estimation within the framework of the discrete-time sliding mode (DSM). The effects of quantization and simple velocity estimation on DSM quality are analyzed. It is shown that the introduced and amplified quantization noise degrades sliding motion into the quasi-sliding mode and threatens to provoke chattering. Furthermore, a new DSM control algorithm is proposed, featuring a two-scale reaching law and a supplemental integral action. This algorithm avoids chattering and provides excellent performance. The developed DSM controller has been experimentally tested in an induction motor position control. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409645 [article] Improved discrete-time sliding-mode position control using euler velocity estimation [texte imprimé] / Veselic, Boban, Auteur ; Perunicic-Drazenovic, Branislava, Auteur ; Milosavljevic, Cedomir, Auteur . - 2011 . - pp. 3840 - 3847. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 11 (Novembre 2010) . - pp. 3840 - 3847 Mots-clés : Discrete-time sliding-mode control (DTSMC) Induction motors (IMs) Position Servo systems Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents a design of digitally controlled positional systems with Euler velocity estimation within the framework of the discrete-time sliding mode (DSM). The effects of quantization and simple velocity estimation on DSM quality are analyzed. It is shown that the introduced and amplified quantization noise degrades sliding motion into the quasi-sliding mode and threatens to provoke chattering. Furthermore, a new DSM control algorithm is proposed, featuring a two-scale reaching law and a supplemental integral action. This algorithm avoids chattering and provides excellent performance. The developed DSM controller has been experimentally tested in an induction motor position control. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409645

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