| Titre : | Analytical determination of DC-bus utilization limits in multiphase VSI supplied AC drives (2008) |
| Auteurs : | Levi, E., Auteur ; Dujic, D., Auteur ; Jones, M., Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | IEEE transactions on energy conversion (Vol. 23 n°2, Juin 2008) |
| Article en page(s) : | pp. 433 - 443 |
| Note générale : | Energy conversion |
| Langues : | Anglais |
| Tags : | 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%3Dasc_p_Sequence%26filter%3DAND%28p_IS_Number%3A4505383%29 |
