Title :
A general approach for minimizing the current ripple in induction motor drives controlled by SVM technique
Author :
Casadei, Domenico ; Serra, Giovanni ; Tani, Angelo ; Zarri, Luca
Author_Institution :
Dipt. di Ingegneria Elettrica, Univ. degli Studi di Bologna, Italy
Abstract :
In this paper an analytical approach useful for predicting the current ripple in induction motor drives controlled by SVM technique is presented. The analysis is applied for determining the optimal modulation technique that minimizes the RMS value of the current ripple. The minimization procedure is based on the analysis of the locus described by the current ripple in the α-β reference frame. As a result, a simple equation has been obtained, which allows the on-line calculation of the optimal SVM switching pattern. It has been verified that it is possible to obtain a current ripple lower than that of symmetric modulation, and with a reduced number of commutations
Keywords :
induction motor drives; machine vector control; modulation; α-β reference frame; SVM control; commutations number reduction; current ripple; current ripple minimisation; induction motor drives; minimization procedure; optimal SVM switching pattern; optimal modulation technique; Commutation; Current measurement; Equations; Induction motor drives; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Support vector machines; Switches; Voltage;
Conference_Titel :
Industrial Electronics, 2000. ISIE 2000. Proceedings of the 2000 IEEE International Symposium on
Conference_Location :
Cholula, Puebla
Print_ISBN :
0-7803-6606-9
DOI :
10.1109/ISIE.2000.930521
