Journal
APPLIED THERMAL ENGINEERING
Volume 109, Issue -, Pages 251-260Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2016.08.036
Keywords
Permanent-magnet synchronous motor; Phase change material; Thermal management; More electric aircraft
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Permanent-magnet synchronous motors (PMSMs) are widely involved in more-electric aircrafts and all electric aircrafts. But the cooling strategy of the PMSM is still a challenge for the designers. This paper proposed a novel thermal management approach with phase change material (PCM) for a PMSM applied in the actuator systems of aircraft. A simplified 3D model of the PMSM with a special casing packaged by paraffin-PCM was built. With the finite element method, the impact of paraffin cavity configurations and the paraffin types on the transient cooling effect of the casings have been simulated and analyzed under conditions of various heat load duty cycles and different ambient temperatures. The results suggest that, by replacing the convectional motor casing with this paraffin-based enclosure, the effective time for the PMSM temperature control could be prolonged by approximate 32.7% when the motor works under a continuous mode, and the peak temperature of the PMSM could be decreased evidently when the PMSM operates under a periodic mode. (C) 2016 Elsevier Ltd. All rights reserved.
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