文档名：空间约束下电动汽车无线充电系统磁耦合结构优化
摘要：电动汽车无线充电系统在尺寸大小与位置偏移等因素的影响下,会导致系统传输能力下降.为了在空间约束条件下提升系统的输出功率、传输效率及抗偏移能力,针对位置偏移与底盘高度不同的实际情况,在经典D4线圈的基础上分别设计了收发端非对称D4和收发端非对称D4Q双层线圈磁耦合结构,以提高耦合系数和抗偏移能力.在不同方向的偏移和旋转的情况进行仿真测试,表明收发端非对称D4Q双层线圈在出现横向偏移300mm、纵向偏移400mm、传输距离230mm和旋转偏移45°以内具备无线电能传输能力.通过搭建实验平台对偏移进行测试与验证,结果表明,所提出的收发端非对称D4Q磁耦合结构的最大输出功率相对于收发端对称D4磁耦合结构增加约60.34％,最大传输效率增大11％.
Abstract：Electricvehiclewirelesschargingsystemsinsizeandpositionoffsetcanleadtothedegradationofthesystemtransmissioncapability.Thesystem'soutputpower,transmissionefficiency,andanti-migrationabilityunderspace-constraintconditionsshouldbeimprovedwhileconsideringthesafetyofelectromagneticradiation.Thispaperproposesadouble-layermagneticcouplingstructureofasymmetricD4andD4Qcoilstoimprovethecouplingcoefficientandanti-migrationability.Firstly,thebasicmagneticcouplingstructuremodelofelectricvehiclesisdefined,andthemutualinductancemodelofbilateralLCCresonancetopologyisestablished.Regardingthespaceconstraintproblem,theasymmetricD4coilisdesignedtoimprovetheanti-deviationability.Inordertomakeupforthedecreaseincouplingcoefficientcausedbytheweakeningofmagneticcouplingatthemiddlegapofthemagneticcouplingstructure,theasymmetricD4coilmagneticcouplingstructureisdesignedbasedontheD4coil.Maxwellequationssimulatedifferentcoiloffsets,andtherelationshipbetweencouplingcoefficientandlateraloffset,longitudinaloffsetdistance,transmissionverticaldistance,androtationAngleoffsetisanalyzed.Fourdifferentmagneticcouplingstructures,namelyasymmetricD4magneticcouplingstructureatthereceivingandsendingend,symmetricalD4coilmagneticcouplingstructureatthereceivingandsendingend,asymmetricD4Qmagneticcouplingstructureatthereceivingandsendingend,andrectangularsymmetricmagneticcouplingstructureatthereceivingandsendingend,aresimulatedandtestedindifferentdirectionsofmigration,rotation,andmultiplemigrations.ThetestshowsthattheasymmetricD4Qdouble-layercoilcantransmitradioenergywithina300mmtransverseoffset,400mmlongitudinaloffset,230mmtransmissiondistance,and45°rotationaloffset.Accordingtodifferentmagneticcouplingstructures,awirelesschargingexperimentalsystemplatformisbuilt.Transverseandlongitudinalmigrationtestsarecarriedoutunderaloadresistanceof10Ωandverticaltransmissiondistanceof150mm.TheexperimentalresultsverifythesuperiorityoftheproposedasymmetricD4Qmagneticcouplingstructure.Thefollowingconclusionscanbedrawnfromthesimulationanalysis:(1)TheasymmetricD4Qdouble-layercoilatthereceivingandsendingendcantransmitradioenergywithinthetransverseoffsetof300mm,thelongitudinaloffsetof400mm,thetransmissiondistanceof230mmandtherotationaloffsetof45°.(2)TheasymmetricD4Qmagneticcouplingstructureatthereceivingandsendingendissuperiortotheotherthreemagneticcouplingmechanismsinmaximumoutputpowerandtransmissionefficiency.(3)ComparedwiththesymmetricD4magneticcouplingstructureatthereceivingandsendingend,themaximumoutputpoweroftheasymmetricD4Qmagneticcouplingstructureatthereceivingandsendingendisincreasedbyabout37.7％,andthemaximumtransmissionefficiencyisincreasedby11％.
作者：徐先峰 吴慧玲 杨雄政 卢勇 李陇杰Author：XuXianfeng WuHuiling YangXiongzheng LuYong LiLongjie
作者单位：长安大学能源与电气工程学院西安710064
刊名：电工技术学报 ISTICEIPKU
Journal：TransactionsofChinaElectrotechnicalSociety
年，卷(期)：2024, 39(12)
分类号：TM131.4+1U469.72
关键词：电动汽车 无线充电 补偿电路拓扑 磁耦合结构 平台搭建
Keywords：Electriccars wirelesscharging compensationcircuittopology magneticallycoupledstructure platformbuilding
机标分类号：TM15TM724TN953
在线出版日期：2024年7月19日
基金项目：国家重点研发计划空间约束下电动汽车无线充电系统磁耦合结构优化[
期刊论文] 电工技术学报--2024, 39(12)徐先峰 吴慧玲 杨雄政 卢勇 李陇杰电动汽车无线充电系统在尺寸大小与位置偏移等因素的影响下,会导致系统传输能力下降.为了在空间约束条件下提升系统的输出功率、传输效率及抗偏移能力,针对位置偏移与底盘高度不同的实际情况,在经典D4线圈的基础上分别设...参考文献和引证文献
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