Coupled fluid-thermal network modeling approach for electrical machines

This paper presents a coupled fluid-thermal network modeling approach. Thermal conduction and convection and interaction with the air flow are modeled. Special emphasis is put on a modular model so that geometry and cooling methods can be simply modified. The structure of all necessary modules is introduced. To demonstrate the abilities of this modeling approach, a network involving a 6 MW synchronous machine with cylindrical rotor with directly cooled conductors and a rotor with indirectly cooled conductors is generated and the results are investigated.