| Abstract |
Knowing the precise thermal behavior of switched reluctance machines is important to increase thepower density of such machines. Up to now, literature is lacking about how to model in detail switchedreluctance machines at high speed with axial air-gap flow. The aim of this paper is to present a modelshowing the effects of varied air-gap flow on temperature distribution in vacuum cleaner machines witha power of 1kW and 60,000rpm.First, a simulation model was set up, illustrating various operating points of the drive. Then the resultsof this model were verified on a test bench. Hereby, a simulation was found for high-speed switchedreluctance machines that ideally reflects the temperature distribution within the machine and also depictsthe effects of changing axial air-gap flow.In conclusion, this presented model indicates that even at high speed and with reduced air-gap flow,these switched reluctance machines can be operated within established temperature limits. Ultimately,this model is very good for predicting the thermal behavior of similar switched reluctance machines withair-gap flow. |
