Computing Loss, Temperature, and Efficiency in Electric Motors

Application ID: 100881

This a continuation of the permanent magnet motor model available here . In this model, an heat transfer analysis has been performed to compute the temperature rise for various stator current and rotor speed. A detailed analysis on torque, and losses in iron and copper have then been performed for both the initial temperature, and taking into account the loss induced temperature rise. From this the efficiency map is extracted and it is shown how the efficiency decrease because of the temperature rise.

In addition, the model performs a check of instantaneous and average power balance, and efficiency map has also been compared to one obtained analytically by exploiting fits on torque, and losses.

More details and stories available here

This model example illustrates applications of this type that would nominally be built using the following products: