Use of a permeance model to predict force harmonic components and damper winding effects in salient-pole synchronous machines
- Resource Type
- Periodical
- Authors
- Knight, A.M.; Karmaker, H.; Weeber, K.
- Source
- IEEE Transactions on Energy Conversion IEEE Trans. Energy Convers. Energy Conversion, IEEE Transactions on. 17(4):478-484 Dec, 2002
- Subject
- Power, Energy and Industry Applications
Geoscience
Predictive models
Shock absorbers
Damping
Machine windings
Synchronous machines
Power system harmonics
Finite element methods
Acoustic noise
Harmonic analysis
Vibrations
- Language
- ISSN
- 0885-8969
1558-0059
This paper presents a combined finite-element and analytical modeling 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 considerably reduces simulation times compared to full time-stepping finite-element solutions, while including the effects of design changes on air-gap force harmonics. Results of the model predictions are presented together with measured data from two different machines.