Modern PWM drives and high speed machines

Nowadays a growing demand for high speed motors and drives in different industry sectors can be observed. Designing these high speed machines is a known task. But beside the machine design, the connected PWM drive has a significant impact on the motor performance due to its switched supply signal. This signal evokes harmonic losses in the machine leading to considerable rotor heating while the rotor temperature limits the machine performance. This paper gives an overview of state of the art drives and machines used for high speed application and focus on the interference between drive and motor. Furthermore the impact of choke and switching frequency on the motor performance is analyzed. Finally the measurement results are summarized and findings are presented.

[1]  Young-Kwan Kim,et al.  High-speed induction motor development for small centrifugal compressor , 2001, ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems (IEEE Cat. No.01EX501).

[2]  J. Pyrhonen,et al.  Filtered PWM-inverter drive for high-speed solid-rotor 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).

[3]  James L. Kirtley,et al.  High speed motor drive development for industrial applications , 1999, IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272).

[4]  Wen L. Soong,et al.  Novel high speed induction motor for a commercial centrifugal compressor , 1999 .

[5]  A. Binder,et al.  Fixation of buried and surface-mounted magnets in high-speed permanent-magnet synchronous machines , 2005, IEEE Transactions on Industry Applications.

[6]  A. Binder,et al.  Design optimization of a high-speed permanent magnet machine with the VEKOPT algorithm , 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).