High precision motion control of servo drives / Jezernik, Karel in IEEE transactions on industrial electronics, Vol. 56 N° 10 (Octobre 2009)  

Public ISBD [article]  inIEEE transactions on industrial electronics > Vol. 56 N° 10 (Octobre 2009) . - pp. 3810 - 3816 Titre : High precision motion control of servo drives Type de document : texte imprimé Auteurs : Jezernik, Karel, Auteur ; Rodic, Miran, Auteur Article en page(s) : pp. 3810 - 3816 Note générale : Génie electrique Langues : Anglais (eng) Mots-clés : Converter control Discrete-event systems Field programmable gate arrays (FPGAs) Permanent magnet motors Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we investigate the advantages and feasibility of motor control using very fast (in megahertz) switching in place of traditional amplifiers. We also propose integrated motion-control architecture based on discrete-event control approach to be implemented in digital logic at an equally high rate. A switching controller combines the current and motion feedback paths into a single loop. A model-based observer estimates the load torque. When compared to second-order controllers implemented with traditional amplifiers, the proposed design promises increased performance, better efficiency, and improved load estimation. Simple implementation makes concepts of switching control very attractive in motion-control systems like control of dc or ac servomotors. The control algorithm designed by the proposed approach can be easily implemented on field programmable gate array platforms. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4838906 [article] High precision motion control of servo drives [texte imprimé] / Jezernik, Karel, Auteur ; Rodic, Miran, Auteur . - pp. 3810 - 3816. Génie electrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 10 (Octobre 2009) . - pp. 3810 - 3816 Mots-clés : Converter control Discrete-event systems Field programmable gate arrays (FPGAs) Permanent magnet motors Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : In this paper, we investigate the advantages and feasibility of motor control using very fast (in megahertz) switching in place of traditional amplifiers. We also propose integrated motion-control architecture based on discrete-event control approach to be implemented in digital logic at an equally high rate. A switching controller combines the current and motion feedback paths into a single loop. A model-based observer estimates the load torque. When compared to second-order controllers implemented with traditional amplifiers, the proposed design promises increased performance, better efficiency, and improved load estimation. Simple implementation makes concepts of switching control very attractive in motion-control systems like control of dc or ac servomotors. The control algorithm designed by the proposed approach can be easily implemented on field programmable gate array platforms. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4838906

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