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E. Schmidt, C. Grabner, G. Traxler-Samek:
"Reactance Calculation of a 500 MVA Hydro-Generator using a Finite Element Analysis with Superelements";
Talk: IEEE International Electric Machines and Drives Conference (IEMDC), Cambridge, USA; 2001-06-17 - 2001-06-19; in: "Proceedings", (2001), 838 - 844.

The finite element analysis of large synchronous generators provides a
significant improvement in the accuracy of the predicted performance.
In case of fractional slot stator windings, the inclusion of more than
one or two pole pitches is necessary for consideration of a precise model
of the synchronous machine. These large finite element models require
highly efficient analysis methods for an implementation in the design
optimization. The presented analysis method uses a domain decomposition
algorithm, whereby only one finite element model for all angular rotor
positions is necessary. Moreover, a significantly reduced calculation
time of successive rotor positions is established. This analysis method
is utilized for the determination and comparison with measurements of
the steady-state parameters of a 500 MVA hydro-generator with 14 poles.