Thermal

In the thermal settings you have two main possible choices:
  • You can define the temperatures of the winding to define the physical properties of the materials needed to run directly the tests without any thermal computation.
  • Or you can choose iterative process until convergence to perform electromagnetic computation coupled to thermal analysis.
Note:
  1. The external fluid temperature corresponds to the temperature of the fluid surrounding the machine. It is also considered as the temperature at the “infinite” for the computation of radiation from the frame to the “infinite”.
  2. The cooling circuit fluid temperature is relevant only when a cooling circuit has been added by the user in the design environment. In this case, this input describes its fluid inlet temperature.

Advice for use

  1. Setting a skew angle modifies the electromagnetic performance of the machine, including the losses.

    For electromagnetic/thermal iterative solving, the losses are then considered as inputs of the thermal computation.

    This means that in "Iterative" solving modes, the temperatures reached in the machine will change depending on the skew angle in input.

  2. The resistance network identification of a machine is always done without any skew angle.

    This can bring some inaccuracy in the results for highly skewed machines.

Settings

For more details, please refer to Thermal for SM-RSM