Title :
Use of a permeance model to predict force harmonic components and damper winding effects in salient pole synchronous machines
Author :
Knight, A.M. ; Karmaker, H. ; Weeber, K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta., Canada
Abstract :
This paper presents a combined finite-element and analytical modelling technique for the prediction of force density harmonics in salient pole synchronous machines. The model calculates the induced currents in the damper winding cage and includes their effect on force density components in the solution. Use of a combined analytical and finite element approach reduces simulation times compared to full time-stepping finite element solutions, while including the effects of design changes on airgap force harmonics. Results of the model predictions are presented together with measured data from two different machines
Keywords :
damping; finite element analysis; harmonics; machine theory; machine windings; magnetic flux; magnetic permeability; synchronous machines; airgap force harmonics; damper winding cage; damper winding effects prediction; finite element approach; force density components; force density harmonics; force harmonic components prediction; permeance model; salient pole synchronous machines; time-stepping finite element solutions; Acoustic noise; Analytical models; Angular velocity; Damping; Finite element methods; Power system harmonics; Power system modeling; Predictive models; Shock absorbers; Synchronous machines;
Conference_Titel :
Electric Machines and Drives Conference, 2001. IEMDC 2001. IEEE International
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-7091-0
DOI :
10.1109/IEMDC.2001.939295
