[Getdp] Eddy Current in PMSM with open slots and massive conductors

[Malte Hinrichs]

Hi,

In a permanently excited synchronous machines with open slots and massive conductors the excitation field can enter the slot, where it causes eddy currents inside of the massive stator wires. This can cause high losses even during no load test with open stator connectors when no macroscopic current can flow. 

Is there a way to simulate this using the machine_magstadyn_a.pro template?

I naively tried to do this by setting the microscopic current to zero with an electric circuit definition with very high resistance. However, while the current over the resistor is virtually zero, the integrated current density over the wire-cross section is not.

Any hint on attacking this will be greatly appreciated. 

Kind regards,

Malte Hinrichs


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Dr.-Ing. Malte Hinrichs
Kopenhagener Str. 71
D-10437 Berlin