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Analytical determination of DC-bus utilization limits in multiphase VSI supplied AC drives / Levi, E. in IEEE transactions on energy conversion, Vol. 23 n°2 (Juin 2008) 

Public ISBD [article]  in IEEE transactions on energy conversion > Vol. 23 n°2 (Juin 2008) . - pp. 433 - 443 Titre : Analytical determination of DC-bus utilization limits in multiphase VSI supplied AC drives Type de document : texte imprimé Auteurs : Levi, E., Auteur ; Dujic, D., Auteur ; Jones, M., Auteur Année de publication : 2008 Article en page(s) : pp. 433 - 443 Note générale : Energy conversion Langues : Anglais (eng) Mots-clés : AC  motor  drives;  PWM  invertors Résumé : Two-level multiphase voltage source inverters (VSIs) are typically used as the supply for multiphase machines. Such machines are often with concentrated winding in which case, certain low-order stator current harmonics are injected to provide torque enhancement. Also, a multimotor drive system can be realized by connecting a number of multiphase machines in series, using phase transposition while supplying the whole system from a single multiphase VSI. In both situations, it is important to know the limits of the inverter operation in the linear modulation region. This paper develops a simple method that enables analytical determination of the boundaries of the linear modulation region for all multiphase inverters with a prime number of phases. The limits are independent of the actual pulse width modulation (PWM) method utilized, and are equally applicable to both carrier-based and space vector PWM techniques. Theoretical considerations are verified experimentally using the five-phase and seven-phase VSI rigs. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4505394&sortType%3Das [...] [article] Analytical determination of DC-bus utilization limits in multiphase VSI supplied AC drives [texte imprimé] / Levi, E., Auteur ; Dujic, D., Auteur ; Jones, M., Auteur . - 2008 . - pp. 433 - 443. Energy conversion Langues : Anglais (eng) in IEEE transactions on energy conversion > Vol. 23 n°2 (Juin 2008) . - pp. 433 - 443 Mots-clés : AC  motor  drives;  PWM  invertors Résumé : Two-level multiphase voltage source inverters (VSIs) are typically used as the supply for multiphase machines. Such machines are often with concentrated winding in which case, certain low-order stator current harmonics are injected to provide torque enhancement. Also, a multimotor drive system can be realized by connecting a number of multiphase machines in series, using phase transposition while supplying the whole system from a single multiphase VSI. In both situations, it is important to know the limits of the inverter operation in the linear modulation region. This paper develops a simple method that enables analytical determination of the boundaries of the linear modulation region for all multiphase inverters with a prime number of phases. The limits are independent of the actual pulse width modulation (PWM) method utilized, and are equally applicable to both carrier-based and space vector PWM techniques. Theoretical considerations are verified experimentally using the five-phase and seven-phase VSI rigs. En ligne : http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4505394&sortType%3Das [...]