Title :
Calculation of eddy current losses in conductive sleeves of synchronous machines
Author :
Gieras, Jacek F. ; Koenig, Andreas C. ; Vanek, Laurence D.
Author_Institution :
Appl. Res. Electr. Eng., Hamilton Sundstrand, Rockford, IL
Abstract :
In this paper, analytical and finite element method (FEM) approaches to calculation of eddy current losses in conductive non-magnetic sleeves (cans) of synchronous or induction machines are presented. Those losses are especially important in high speed electrical machines as the sleeve losses are a function of the second power of rotational speed. In some applications, non-conductive sleeves, e.g. carbon graphite cannot be used due to problems with thermal compatibility of rotor and stator materials.
Keywords :
eddy current losses; finite element analysis; rotors; stators; synchronous machines; FEM; analytical method; conductive nonmagnetic sleeves; eddy current losses calculation; finite element method; high-speed electrical machines; induction machines; rotor; stator; synchronous machines; Conducting materials; Conductivity; Eddy currents; Finite element methods; Induction machines; Magnetic flux density; Rotors; Samarium; Stators; Synchronous machines;
Conference_Titel :
Electrical Machines, 2008. ICEM 2008. 18th International Conference on
Conference_Location :
Vilamoura
Print_ISBN :
978-1-4244-1735-3
Electronic_ISBN :
978-1-4244-1736-0
DOI :
10.1109/ICELMACH.2008.4800129
