Comprehensive Design And Modeling Of A Super High-Speed Permanent Magnet Motor

Keywords

Electric machines; Electric motors; Permanent magnet motors

Abstract

This paper proposed a 3kW radial PMSM designed for operation up to 150,000 r/min. The design procedure of the machine is discussed, with modeling and simulation results. Thanks to the super high speed, the designed motor can achieve high energy density at 2.5 kW/kg(housing weight included) and efficiency is over 97%. The super high speed brings challenges on electrical, mechanical and thermal design. Proper design of the stator lamination, including bore diameter, outer diameter, slot, yoke thickness and airgap is explained. At high frequency, proximity effect and skin effect becomes significant, the effects have been analyzed and multi-strand Litz wires are chosen for this design. Double-layer distributed winding is used instead of concentric winding to reduce the harmonic EMF. The rotor structure is designed to endure the mechanical stress at high RPM. Thermal analysis is conducted, and a housing with water cooling is designed. The design is optimized in ANSYS Maxwell and simulation results verified the performance of the motor. A controller for the high speed drive has been developed for the motor.

Publication Date

8-12-2015

Publication Title

Proceedings - 2015 IEEE Workshop on Electrical Machines Design, Control and Diagnosis, WEMDCD 2015

Number of Pages

28-33

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/WEMDCD.2015.7194485

Socpus ID

84954563654 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84954563654

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