文档名：基于集电线圈复用的电动磁浮列车感应式电能传输技术研究
摘要：为实现电动磁浮列车低速运行阶段无接触辅助供电,同时尽可能减轻耦合机构重量,并保障供电系统平稳输出,该文设计了一种利用磁浮系统原有线圈作为耦合机构的感应式电能传输(IPT)系统,通过线圈与电路结构重构,以列车低速运行阶段空置的悬浮线圈与集电线圈作为能量传输通道.由于不需额外安装能量传输线圈,所提出的IPT系统对磁浮列车自重影响小,且耦合机构在移动过程中具有互感恒定的特性,结合LCC-S谐振补偿电路,IPT系统在列车移动过程中与负载变化过程中均能保持稳压输出.为验证所提方案的可行性和有效性,搭建了1kW的原理样机,在移动供电过程中,IPT系统输出电压波动仅1.51%,输出功率在300～1000W范围变化时,输出电压波动为4.42%,系统整体效率为83.75%～86.61%.
Abstract：Thepowersupplycapacityofthelineargeneratorisinsufficientwhentheelectrodynamicsuspension(EDS)maglevtrainisatlowspeedorstationary.Thecontactpowersupplydeviceisusedasanadditionalpowersupply,resultinginwear,noise,andpoorweatherresistance,whichaffectrunningsafetyandridecomfort.Inrecentyears,thedevelopmentofinductivepowertransfer(IPT)technologyhasbeenrelativelymature.Ituseshigh-frequencymagneticfieldsasthemediumtorealizeenergytransmissionbetweencouplingcoils,whichhasoutstandingadvantagessuchascontactlessandflexiblecharging.However,topromotethistechnologyinthemaglevtrain,theIPTsystemhastobelighterandmorecompact.Therefore,thispaperputsforwardareusemethodofcoilandcircuittobuildtheintegratedIPTsystem.Bychangingthecoilandcircuitstructure,thesuspensionandcollectorcoils,vacantwhenthetrainisatlowspeed,areusedastheenergytransmissionchannel.TheproposedIPTsystemhaslittleinfluenceonthedeadweightofthemaglevtrain,andthemutualinductanceofthecouplercanbeconstantduringthemovingprocess.CombinedwiththeLCC-Sresonantcompensationcircuit,thestableoutputvoltageisrealizedinthetrainmovementandloadchangeprocess.First,accordingtothecharacteristicsofthemulti-coilcouplingoftheelectrodynamicsuspensionmaglevtrainanddifferentcoilmodesunderdifferentspeeds,anintegratedIPTsystembasedonreconfigurablecoilsandcircuitsisproposed.Theworkingmodesofcoilsandcircuitsatdifferenttrainspeedsareanalyzedindetail,andthestructureandreconstructionstrategyofcoilsandcircuitsaredesignedforcontactlesspowertransferwithoutaffectingtheoriginalfunctionofthetrainorincreasingtheweightofthetrain.Then,anequivalentcircuitmodelofthecouplerisestablishedtoclarifythemutualinductancefluctuationofthecouplerduringthemovingprocessofthetrain.TheFourierseriesisusedtocharacterizetherelationshipbetweenthemutualinductanceofthecoilsandthedisplacement,whichsimplifiesthemutualinductancefluctuationanalysisofthemulti-inputmulti-outputcoupler.Theresultsshowthatthemulti-inputandmulti-outputcouplerconstructedbyreusingsuspensioncoilsandcollectorcoilshasthecharacteristicsofconstantmutualinductanceduringthemovingprocessofthetrain.Moreover,toensurethestablevoltageoutputoftheIPTsystemunderdifferentloads,anLCC-Sresonantcompensationcircuitwithacentralizedcompensationcapacitoronthesecondarysideisproposed.Basedonthemathematicalmodelofthecircuittopology,thecompensationtopologyparametersforrealizingtheconstantvoltageoutputofthesystemarederived.Finally,basedonthesystemcoilstructureandcircuittopology,combinedwiththeestablishedmathematicalmodel,ascaledexperimentalplatformfortheintegratedIPTsystemoftheEDSmaglevtrainisdesignedandbuilt.Throughtheexperiment,theconstantmutualinductancecharacteristicsofthecouplerandtheconstantvoltageoutputcharacteristicsofthesystemwhentheloadchangesareverified.Inthemovingprocess,theoutputvoltagefluctuationisonly1.51%.Whentheoutputpowervariesfrom300Wto1000W,theoutputvoltagefluctuationis4.42%,theoverallefficiencyofthesystemisatleast83.75%,andthehighestis86.61%.
作者：余嘉淇 周凌云 刘顺攀 王州龙 麦瑞坤 Author：YuJiaqi ZhouLingyun LiuShunpan WangZhoulong MaiRuikun
作者单位：西南交通大学电气工程学院成都611756中国铁道科学研究院集团有限公司通信信号研究所北京100081西南交通大学电气工程学院成都611756;西南交通大学唐山研究院唐山063000
刊名：电工技术学报
Journal：TransactionsofChinaElectrotechnicalSociety
年，卷(期)：2024, 39(4)
分类号：TM724U266.4
关键词：电动磁浮 感应式电能传输 线圈复用 平稳输出
Keywords：Electrodynamicsuspensionmaglev inductivepowertransfer coilreuse stableoutput
机标分类号：TN929.5TM724TP393
在线出版日期：2024年3月5日
基金项目：河北省自然科学基金面上项目，中央高校基本科研业务费专项资金项目基于集电线圈复用的电动磁浮列车感应式电能传输技术研究[
期刊论文] 电工技术学报--2024, 39(4)余嘉淇 周凌云 刘顺攀 王州龙 麦瑞坤为实现电动磁浮列车低速运行阶段无接触辅助供电,同时尽可能减轻耦合机构重量,并保障供电系统平稳输出,该文设计了一种利用磁浮系统原有线圈作为耦合机构的感应式电能传输(IPT)系统,通过线圈与电路结构重构,以列车低速运...参考文献和引证文献
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