Design and Modeling of a High-Speed Permanent Magnet Synchronous Generator with a Retention Sleeve of Rotor

In this paper, the authors present a novel approach to design a high-speed permanent magnet synchronous generator (HS-PMSG) with a retention sleeve. The importance of the retention sleeve becomes conspicuous when the rotor suffers from the radial and tangential stresses derived from a high speed say ۶۰ krpm. With respect to the mechanical property of Titanium, this material has been demonstrated that it could be a proper material for the retention sleeve. The investigations of this paper are concentrated on the electromagnetic coupled with mechanical design of a ۲-poles, ۱۸-slots, ۴۰ KW HS-PMSG which is carried out through FEM analysis using JMAG ۱۷.۱ and ABAQUS CAE and optimized through the well-known Taguchi optimization method. The obtained results assure the robust mechanical behaviour of the HS-PMSG at a rotational speed of about ۶۰ krpm meanwhile the cogging torque, the Joule loss, and the total weight of the optimally designed HS-PMSG are reduced ۴۴.۷۱%, ۲۷.۸۷%, and ۲.۷۸%, respectively compared with the initial design.

Keywords:

high-speed permanent synchronous machine , retention sleeve , Taguchi Optimization Method , Titanium sleeve