Finite element modeling of the temperature distribution in the stator of a synchronous generator

In this paper, we applied the finite element modeling to the stator temperature distribution of a hydroelectric generator. The electrical losses produce a temperature distribution in the stator of a synchronous generator. For the calculation and optimization of the temperature distribution, a full parameterized thermal model of the stator was created using the finite element method. Now it is possible to calculate the thermal effects of different parameter modifications and additionally we can optimize the heat transfer for the stator with variant calculations. The most important bar fitting systems and its thermal efforts are included in this thermal stator model. Our targets are to decrease the expensive and time‐consuming laboratory measurements in the future and improve the accuracy of the standard calculation software. To estimate the accuracy of the finite element model we build an additional laboratory model.