High-speed switched reluctance machine design with toroidal-windings

With the advancement of power electronics, new materials and novel bearing technologies, there has been an active development of high speed machines in recent years. The simple rotor structure makes switched reluctance machines (SRM) candidates for high speed operation. This paper has presents the design of a low power, 50,000 RPM 6/4 SRM having a toroidally wound stator. Finite element analysis (FEA) shows an equivalence to conventionally wound SRMs in terms of torque capability. With the conventional asymmetric converter and classic angular control, this toroidal-winding SRM (TSRM) is able to produce 233.20 W mechanical power with an efficiency of 75% at the FEA stage. Considering the enhanced cooling capability as the winding is directly exposed to air, the toroidal-winding is a good option for high-speed SRM.

[1]  Young-Cheol Lim,et al.  Position detection and drive of a toroidal switched reluctance motor (TSRM) using search coils , 2004 .

[2]  J. C. Andreas.  Energy-Efficient Electric Motors Selection and Application , 1982 .

[3]  S. Ogasawara,et al.  Design and analysis of a switched reluctance motor for next generation hybrid vehicle without PM materials , 2010, The 2010 International Power Electronics Conference - ECCE ASIA -.

[4]  Glynn Atkinson,et al.  Investigation of the mechanical constraints on the design of a super-high-speed Switched Reluctance Motor for automotive traction , 2014 .

[5]  A. Emadi,et al.  A continuous toroidal winding SRM with 6 or 12 switch DC converter , 2014, 2014 IEEE Energy Conversion Congress and Exposition (ECCE).

[6]  K. Kiyota,et al.  Design of switched reluctance motor competitive to 60 kW IPMSM in third generation hybrid electric vehicle , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[7]  Byoung-Kuk Lee,et al.  Dynamic analysis of toroidal winding switched reluctance motor driven by 6-switch converter , 2006, IEEE Transactions on Magnetics.

[8]  A. Tenconi,et al.  Key design aspects of electrical machines for high-speed spindle applications , 2010, IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society.

[9]  Ali Emadi,et al.  State-of-the-art high-speed switched reluctance machines , 2015, 2015 IEEE International Electric Machines & Drives Conference (IEMDC).

[10]  Andrea Cavagnino,et al.  High-Speed Electrical Machines: Technologies, Trends, and Developments , 2014, IEEE Transactions on Industrial Electronics.

[11]  Byoung-Kuk Lee,et al.  A comparative study of switched reluctance motors with conventional and toroidal windings , 2005, IEEE International Conference on Electric Machines and Drives, 2005..

[12]  Alessandro Vigliani,et al.  Electrical Machines for High-Speed Applications: Design Considerations and Tradeoffs , 2014, IEEE Transactions on Industrial Electronics.