Title :
Representation of skew in time-stepped two-dimensional finite-element models of electrical machines
Author :
Williamson, Stephen ; Flack, Timothy J. ; Volschenk, Albertus F.
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
Abstract :
The authors outline a technique which enables two-dimensional finite-element analysis to be applied to skewed machines. It involves representing the continuous skewing in a series of discrete steps. Each step may be modeled in two dimensions. The model has been applied to a salient-pole synchronous generator and to a cage induction motor. It is shown that the model is successful in removing phantom slot-ripples from the current and voltage waveforms
Keywords :
finite element analysis; machine theory; squirrel cage motors; synchronous generators; cage induction motor; current waveform; electrical machines; phantom slot-ripples removal; salient-pole synchronous generator; skewed machines; time-stepped two-dimensional finite-element models; voltage waveform; Couplings; Finite element methods; Imaging phantoms; Impedance; Induction motors; Industry Applications Society; Power generation economics; Rotors; Voltage; Workstations;
Journal_Title :
Industry Applications, IEEE Transactions on
