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Application Brief

Modeling of Hairpin Winding in Ansys Motor-CAD

This paper demonstrates the bespoke modeling capabilities in Motor-CAD for the analysis and design of hairpin windings. The modeling method of the hairpin winding using Motor-CAD is shown, as well as design rules and checks in the software. Based on a representative traction motor example, the influence of introducing more winding layers on the copper losses has been analyzed, with the following conclusions:

  1. Using a higher number of winding layers does not always result in lower copper loss.
  2. The trade-off between DC and AC losses under different operating points should be considered when designing for the optimal number of winding layers.

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