Numerical investigation on cooling performance of oil cooled PMSM jacket design with vertical straight fin design

Abstract

Cooling has been an important parameter to extend the high-speed generator operating conditions. Literature highlights the high speed generator jacketjacket of generator is a crucial part that need to be cooled down to dissipate the coil temperature to ensure the performance of the Permanent magnet synchronous machine (PMSM). Research shows there are work done on the internal jacket design to improve cooling. This research work focuses on further enhancement of more design parameters for the internal oil flow jacket space design to dissipate heat better. The vertical straight fin configurations were deployed to investigate the effect of heat transfer with same cooling medium, Oil. The numerical analysis using ANSYS-FLUENT was completed, converged and mesh independent results were presented. The vertical straight fins improve heat transfer more than triple as compared to the baseline. This will be used as base for future enhancement in PMSM jacket cooling for high speed generator.

Keywords

• PMSM
• Jacket cooling
• High speed generator
• Oil coolant
• Computational fluid dynamics (CFD)