Development and Performance of High-Speed SPM Synchronous Machine

This paper presents a performance evaluation for a 250 kW – 20,000 min−1 high-speed permanent magnet (PM) motor for high-speed applications such as industrial blowers and compressors. The utilization of a high-speed motor for a direct drive system can contribute to making the system size more compact when compared to a geared system. However, this could cause the motor loss density to be high due to the high output power density in the high-speed motor. At this time, we evaluated the electrical characteristics and efficiency of the prototype 250 kW – 20,000 min−1 high-speed PM motor and measured the temperature increase by carrying out a heat run test. Furthermore, loss separation was performed to improve the efficiency and design accuracy.

[1]  Kouki Matsuse,et al.  New technical trends on adjustable speed AC motor drives , 2017 .

[2]  Patel B. Reddy,et al.  Modeling and analysis of proximity losses in high-speed surface permanent magnet machines with concentrated windings , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[3]  Ronghai Qu,et al.  Rotor design for a high-speed high-power permanent-magnet synchronous machine , 2015, 2015 IEEE Energy Conversion Congress and Exposition (ECCE).

[4]  Bulent Sarlioglu,et al.  Mechanical design method for a high-speed surface permanent magnet rotor , 2016, 2016 IEEE Energy Conversion Congress and Exposition (ECCE).

[5]  Nicola Bianchi,et al.  High speed motors: A comparison between synchronous PM and reluctance machines , 2017, 2017 IEEE Energy Conversion Congress and Exposition (ECCE).

[6]  Ronghai Qu,et al.  Design of four-axis magnetic bearing for high speed motor , 2016, 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia).

[7]  R. Moghaddam.  High speed operation of electrical machines, a review on technology, benefits and challenges , 2014, 2014 IEEE Energy Conversion Congress and Exposition (ECCE).

[8]  J. Kolar,et al.  Efficiency Optimization of a 100-W 500 000-r/min Permanent-Magnet Machine Including Air-Friction Losses , 2007, IEEE Transactions on Industry Applications.

[9]  M.A. Rahman,et al.  Super high speed electrical machines - summary , 2004, IEEE Power Engineering Society General Meeting, 2004..

[10]  Phil Mellor,et al.  Experimental and analytical determination of proximity losses in a high-speed PM machine , 2013, 2013 IEEE Energy Conversion Congress and Exposition.