Is it possible to incorporate the impact of endwinding in 2D Flux thermal study?

Ali_Zarghani

I am performing a 2D radial-plane thermal simulation of an electric machine. Normally, the effect of the end-windings is neglected in this study, as it is not modeled. Is there any way to include or approximate the impact of the end-windings in such a model? Is there any way to add a thermal circuit to model it?

For example, suppose cooling is applied directly to only the end-windings, and we would like to investigate how this influences the slot-conductor temperature.

Letizia Ferrara

Hello,

Thanks for writing to us..

With 2D thermal analysis, it is not possible to consider the effect of end windings; while for the electromagnetic part we can consider them as an inductance that increases the flux linked to the phase, for the thermal part there is no way to add related effects. You have to use the 3D domain to consider end windings and estimate the effect of the cooling systems.

To perform more in-depth thermal analysis, solving the fluid domain, you can use FluxMoto: this allows you to better estimate how the cooling systems can affect the temperature of the conductors in the slot, since convection coefficients are computed within FluxMotor.

It is quick and easy to use as it considers the equivalent thermal circuit in background and allows it to be exported to FlowSimulator (a dedicated Altair software for this type of analysis), for which FluxMotor users should be able to use it with the same license.

Best regards,

Letizia