Thermal Analysis of IPMSM with Water Cooling Jacket for Railway Vehicles

  • Park, Chan-Bae (Railroad Propulsion System Research Team, Korea Railroad Research Institute)
  • Received : 2013.09.24
  • Accepted : 2013.11.28
  • Published : 2014.05.01


In this paper, the water cooling method among the forced coolant cooling methods is considered to be applied to the 110kW-class IPMSM for railway vehicles. First, basic thermal property analysis of the IPMSM is conducted using the three-dimensional thermal equivalent network method. Then, based on the results of the basic thermal property analysis, some design requirements for the water cooling jacket are deduced and a basic design of the water cooling jacket is carried out. Finally, thermal equivalent circuit of the water cooling jacket is attached to the IPMSM's 3D thermal equivalent network and then, the basic thermal and effectiveness analysis are conducted for the case of applying the water cooling jacket to the IPMSM. In the future, the thermal variation trends inside the IPMSM by the application of the water cooling jacket is expected to be quickly and easily predicted even at the design step of the railway traction motor.


Interior permanent magnet synchronous motor;IPMSM;Water cooling jacket;Thermal analysis;Thermal equivalent network


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