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Temperature Distribution Analysis of a Switched Reluctance Linear Launcher

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3 Author(s)
Hao Chen ; School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou, China ; Sen Lv ; Qianlong Wang

A thermal model of a switched reluctance linear launcher is presented in this paper. The accuracy of the thermal model is verified by comparing experimental data with those results derived from finite-element method simulation. The temperature distribution of a switched reluctance linear launcher is derived based on the stator copper losses as the main heat power with measured stator winding current by the current sensor. The maximum temperature rise curves under different ambient temperature and different heat power of winding A are studied. The heat dissipation power of four air convection surfaces under different ambient temperature and the different heat power of winding A is also studied. Furthermore, this paper achieves optimization in thickness of the stator plate and in adding fins to the stator plate for heat dissipation with the present model. It is shown that the stator plate is the maximum heat dissipation power surface so that it can be adopted as the main heat dissipation channel and the effect of heat dissipation is obvious by adding fins to the stator plate.

Published in:

IEEE Transactions on Plasma Science  (Volume:41 ,  Issue: 5 )