Independent speed control of two induction motors fed by a five-leg inverter with space vector modulation

The methodology and experimental results of the independent speed control of two three-phase induction motors (IMs) fed by a five-leg inverter (5LI) with space vector modulation (SVM) are presented in this paper. Using SVM, we can select the switching count freely. But if SVM is applied to 5LI, normal SVM techniques to output voltages for motor in 3-VSI cannot be employed for the 5LI with independent driving because of its circuit configuration. Therefore, new SVM technique is needed. This paper shows the SVM technique for 5LI and the experimental results in case of using SVM with the least switching count for common leg of all. Then, experimental results are verified for the independent speed control of two IMs fed by the 5LI with SVM in this paper.

[1]  Philippe Delarue,et al.  Generic control method of multileg voltage-source-converters for fast practical implementation , 2003 .

[2]  Drazen Dujic,et al.  Five-leg inverter PWM technique for reduced switch count two-motor constant power applications , 2008 .

[3]  Kouki Matsuse,et al.  Improved Method of Voltage Utility Factor for PWM Control Method of Five-Leg Inverter , 2006 .

[4]  K. Matsuse,et al.  Independent vector control of two PM motors with five-leg inverter by the expanded two-arm modulation method , 2005, 2005 European Conference on Power Electronics and Applications.

[5]  Kouki Matsuse,et al.  Analysis and compensation method of voltage error by dead-time with five-leg inverter for two-AC motor independent drives , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[6]  Kouki Matsuse,et al.  Independent Position Controls of Two Permanent Magnet Synchronous Motors Fed by a Five-Leg Inverter , 2010, 2010 IEEE Industry Applications Society Annual Meeting.

[7]  K. Matsuse,et al.  Performance for Position Control of Two Permanent Magnet Synchronous Motors with the Five-Leg Inverter , 2006, IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics.

[8]  Alain Bouscayrol,et al.  Control of two induction motors fed by a five-phase voltage-source inverter , 1999 .

[9]  M. Jones,et al.  A performance comparison of PWM techniques for five-leg VSIs supplying two-motor drives , 2008, 2008 34th Annual Conference of IEEE Industrial Electronics.

[10]  Kouki Matsuse,et al.  PWM Technique of Five-Leg Inverter Applying Two-Arm Modulation , 2009 .

[11]  Gui-Jia Su,et al.  A five-leg inverter for driving a traction motor and a compressor motor , 2004, IEEE Transactions on Power Electronics.

[12]  Kouki Matsuse,et al.  Characteristic of Independent Two AC Motor Drives Fed by a Five-Leg Inverter , 2009, 2009 IEEE Industry Applications Society Annual Meeting.