A novel SVM strategy for VSI dead-time-effect reduction

A novel high-efficiency space vector modulation (SVM) strategy is proposed in this paper. It is based on the simultaneous and combined use of two strategies. The former consists of commutating only one switch of each inverter leg within each modulation period. In this way, there is no need to impose the dead time. The latter performs a step-by-step change of the modulation frequency in order to reduce the distortion of the inverter output voltage. The proposed system has been implemented and carried out on a programmable logic device (PLD) digital board. For validation, an experiment has been set up and several tests have been performed. The results have been compared with the ones achieved by means of the traditional SVM technique.

[1]  M. Egan,et al.  Theoretical spectra of space-vector-modulated waveforms , 1998 .

[2]  Russel J. Kerkman,et al.  Pulse based dead time compensator for PWM voltage inverters , 1995, Proceedings of IECON '95 - 21st Annual Conference on IEEE Industrial Electronics.

[3]  Bimal K. Bose,et al.  Power Electronics and Variable Frequency Drives , 1996 .

[4]  Giuseppe Tomasso,et al.  Predictive compensation of dead time effects in VSI feeding induction motors , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[5]  Seung-Ki Sul,et al.  Inverter output voltage synthesis using novel dead time compensation , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.

[6]  Ciro Attaianese,et al.  A variable frequency space vector modulator for VSI fed induction motor drives , 2000, ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543).

[7]  Seung-Ki Sul,et al.  Inverter output voltage synthesis using novel dead time compensation , 1996 .

[8]  Young-Seok Kim,et al.  A novel dead time minimization algorithm of the PWM inverter , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[9]  Tore Undeland,et al.  Power Electronics: Converters, Applications and Design , 1989 .

[10]  Giuseppe Tomasso,et al.  A DIGITAL MODULATOR FOR INCREASING THE PERFORMANCES OF VOLTAGE SOURCE INVERTER BASED DRIVES , 2004 .

[11]  Seung-Gi Jeong,et al.  The analysis and compensation of dead-time effects in PWM inverters , 1991 .

[12]  Yoshihiro Murai,et al.  Waveform Distortion and Correction Circuit for PWM Inverters with Switching Lag-Times , 1987, IEEE Transactions on Industry Applications.

[13]  P. T. Manditeresa,et al.  Comparisons of real time generated space vector modulated signals for motor drive applications , 1998 .

[14]  Russel J. Kerkman,et al.  Pulse-based dead-time compensator for PWM voltage inverters , 1997, IEEE Trans. Ind. Electron..