H. A. Toliyat, “Analysis and simulation of five-phase variable-speed induction motor drives under asymmetrical connections,” IEEE Transactions on Power Electronics, Vol. 13, No. 4, pp. 748–756, July 1998.
 D. Dujic, G. Grandi, M. Jones, and E. Levi, “A space vector PWM scheme for multifrequency output voltage generation with multiphase voltage-source inverters,” IEEE Transactions on Industrial Electronics, Vol. 55, No. 5, pp. 1943–1955, May 2008.
 E. Levi, D. Dujic, M. Jones, and G. Grandi, “Analytical determination of DC-Bus utilization limits in multiphase VSI supplied AC drives,” IEEE Transactions on Energy Conversion, Vol. 23 No. 2, pp. 433–443, June 2008.
 V. Oleschuk, F. Profumo, and A. Tenconi, “Analysis of operation of symmetrical dual three-phase converters with hybrid schemes of synchronised PWM,” International Review of Electrical Engineering (IREE), Vol. 2, No. 6, December 2007.
 M. J. Duran, F. Salas, and M. R. Arahal, “Bifurcation analysis of five-phase induction motor drives with third harmonic injection,” IEEE Transactions on Industrial Electronics, Vol. 55, No. 5, pp. 2006–2014, May 2008.
 R. Kianinezhad, B. Nahid-Mobarakeh, L. Baghli, F. Betin, and G.-A. Capolino, “Modeling and control of six-phase symmetrical induction machine under fault condition due to open phases,” IEEE Transactions on Industrial Electronics, Vol. 55, No. 5, pp. 1966–1977, May 2008.
 N. R. Abjadi, J. Soltani, and J. Askari, “Nonlinear sliding-mode control of a multi-motors web winding system without tension sensor,” IEEE International Conference on Industrial Technology (ICIT 2008), pp. 1–6, April 21–24, 2008.
 E. Levi, S. N. Vukosavic, and M. Jones, “Vector control schemes for series-connected six-phase two-motor drive systems,” IEE Proceedings-Electronics Power Applications, Vol. 152, No. 2, pp. 226–238, March 2005.
 M. Jones, S. N. Vukosavic, E. Levi, and A. Iqbal, “A six-phase series-connected two-motor drive with de- couple-ed dynamic control,” IEEE Transactions on Indus- trial Applications, Vol. 41, No. 4, pp. 1056–1066, July– August 2005.
 K. K. Mohapatra, R. S. Kanchan, M. R. Baiju, P. N. Tekwani, and K. Gopakumar, “Independent field-oriented control of two split-phase induction motors from a single six-phase inverter,” IEEE Transactions on Indus- trial Electronics, Vol. 52, No. 5, pp. 1372–1382, Octo- ber 2005.
 M. Jones, S. N. Vukosavic, and E. Levi, “Parallel-connected multiphase multidrive systems with single inverter supply,” IEEE Transactions on Industrial Electronics, Vol. 56, No. 6, pp. 2047–2057, June 2009.
 E. Levi, M. Jones, S. N. Vukosavic, and H. A. Toliyat, “A five-phase two-machine vector controlled induction motor drive supplied from a single inverter,” EPE Journal, Vol. 14, No. 3, pp. 38–48, August 2004.
 K. K. Mohapatra, M. R. Baiju, and K. Gopakumar, “Independent speed control of two six-phase induction motors using a single six-phase inverter,” EPE Journal, Vol. 14, No. 3, pp. 49–62, June–August 2004.
 M. Jones, E. Levi, and A. lqbal, “A five-phase series- connected two-motor drive with current control in the rotating reference,” 35th Annual IEEE Power Electronics Specialists Conference, Aochen, Gemany, pp. 3278–3284, 2004.
 H.-M. Ryu, J.-H. Kim, and S.-K. Sul, “Analysis of multiphase space vector pulse-width modulation based on multiple d-q spaces concept,” IEEE Transactions on Power Electronics, Vol. 20, No. 6, pp. 1364–1371, November 2005.
 E. Levi, A. Iqbal, S. N. Vukosavic, and H. A. Toliyat, “Modeling and control of a five-phase series-connected two-motor drive,” The 29th Annual Conference of the IEEE Industrial Electronics Society (IECON), Vol. 1, pp. 208–2132, 003.
 Q. Song, X. Zhang, F. Yu, and C. Zhang, “Research on space vector PWM of five-phase three-level inverter,” Proceedings of the Eighth International Conference on Electrical Machines and Systems, ICEMS, Vol. 2, pp. 1418–1421, 2005..
 C. Lascu, I. Boldea, and Frede Blaabjerg, “Direct torque control of sensorless induction motor drives: A sliding- mode approach,” IEEE Transactions on Industrial Applications, Vol. 40, No. 2, pp. 582–590, March–April 2004.
 C. Lascu and G.-D. Andreescu, “Sliding-mode observer and improved integrator with DC-Offset compensation for flux estimation in sensorless-controlled induction motors,” IEEE Transactions on Industrial Electronics, Vol. 53, No. 3, pp. 785–794, June 2006.
  K. N. Pavithran, R. Parimelalagan, and M. R. Krishna- murthy, “Studies on inverter-fed five-phase induction motor drive,” IEEE Transactions on Power Electronics, Vol. 3, No. 2, pp. 224–235, April 1988.