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- Title
Study of Asynchronous Motors with Asymmetrical Rotor Slots Under FEM Steady-State Analysis.
- Authors
Gyftakis, Konstantinos N.; Kappatou, Joya; Safacas, Athanasios N.
- Abstract
In this work, models combining NEMA's classes A and D slot geometry are created, with the use of a library of parameterized Squirrel Cage Induction Machine models. The models were analyzed using AC non-linear FEM analysis. The influences of the different analogy of class A versus class D slots in the asynchronous cage motor, on the distribution of the magnetic field, the torque as well as the stator and rotor currents are investigated. Furthermore, the electromagnetic behaviour of the class D motor, with iron closed rotor slots and with closed stator slots with semi-magnetic wedges is investigated. Finally, the efficiency of the model, with analogy of class A to D rotor slots, 1:1 was optimized, by closing the stator slots with semi-magnetic wedges of magnetic permeability equal to 5.
- Subjects
INDUCTION motors; ROTORS; FINITE element method; INDUCTION machinery; GEOMETRY; NATIONAL Electrical Manufacturers Association; DIELECTRIC wedges
- Publication
International Review of Electrical Engineering, 2010, Vol 5, Issue 6, p2601
- ISSN
1827-6660
- Publication type
Article