High-speed synchronous reluctance machine with minimized rotor losses
This paper presents a refined design of a high-speed synchronous reluctance machine with minimized eddy-current losses in the rotor. Design criteria are the ability of the rotor to withstand high speeds, ability to operate in vacuum, negligible zero-torque spinning losses, high reliability, high efficiency, and low manufacturing cost. The rotor of the synchronous reluctance machine consists of bonded sections of ferromagnetic and non-magnetic steels. Finite-element code, incorporating rotor rotation, has been developed in MATLAB that calculates steady-state eddy currents (and losses) in the rotor. A stator iron and stator winding have been designed to minimize rotor losses, and two such prototype machines have been fabricated. Experimental results show an efficiency of 91% at a 10-kW 10,000-r/min operating point, and rotor losses less than 0.5% of input power.
- Research Organization:
- Univ. of California, Berkeley, CA (US)
- OSTI ID:
- 20082441
- Journal Information:
- IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers), Vol. 36, Issue 2; Conference: 1998 Industry Applications Society Annual Meeting, St. Louis, MO (US), 10/12/1998--10/16/1998; Other Information: PBD: Mar-Apr 2000; ISSN 0093-9994
- Country of Publication:
- United States
- Language:
- English
Similar Records
16,000-rpm Interior Permanent Magnet Reluctance Machine with Brushless Field Excitation
Wound Field and Hybrid Synchronous Machines for EV Traction with Brushless Capacitive Rotor Field Excitation (Final Report)