Abstract: A new modeling method of turbo generator stator end windings is proposed, which is
advanced from spreading plane to stereoscopic, to realize parametric modeling of stator windings.
Mathematical model of parametric modeling is established and key 3D-modeling steps are given.
Then through using secondary development technique, programming technique and database
technique, an automatic parametric modeling system of the stator end windings of turbo generator
based on UG/NX platform is developed. Taking a million-kilowatts-class turbo generator as example,
the validity and feasibility of this method and system are testified.

Key words: turbo generator, stator end windings, modeling of bars, parametric modeling