Journal of Harbin University of Science and Technology (Dec 2023)
Thermal Characteristics Analysis of Magnetic Coupler in Wireless Charging System
Abstract
Themagneticcoupleristhecorepartoftheenergytransmissioninwirelesschargingsystem,inwhichthelossofcoilandmagneticcorecausestemperatureriseandthentheaccumulatedtemperatureriseaffectsthesecurityandreliabilityofthesystem.Inthispaper,asetofthermalfieldmodelingandcharacterizationmethodsformagneticcouplerisproposed.Firstly,theDD-typemagneticcouplerismodeledtocalculatetheheatloss.Secondly,theheattransfermodeisanalyzedandthethermalparametersrequiredformodelingarederived.Finally,themagneticcouplerofwirelesschargingsystemissimulatedbyIcepakinordertoobtainthetemperaturecharacteristicsofthemagneticcouplerunderdifferentheatdissipationconditions.Theresultsshowthatthemagnetic-thermalsimulationcanpredictthetemperatureofthemagneticcoupleratsteadystate.
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