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Ⅰ摘要无线供电技术(WPT-WirelessPowerTechnology)作为一种供电技术发展于这几年，在很大程度上和传统供电技术差别不小。目前所有的无线能量传输方法中，有一种新型的供电技术，叫做谐振式磁耦合无线供电技术，它不仅可以将无线供电的距离提高到米级范围，而且能使用电设备和供电设备实现物理隔离，如此一来既能让用电设备美观、实用，还能提高用电设备的安全指数。本论文的主要研究对象是谐振式磁耦合无线充电电路。论文首先研究分析了关于谐振式磁耦合无线充电系统的原理，其次对各个电路模块的功能与工作原理进行介绍，然后设计了该系统的发射与接收电路，最后对谐振式磁耦合无线充电系统进行数组对比试验，分析其功率传输特点与距离传输特点。在试验中，通过改变电路的固有参数，可以发现该系统的功率传输特性和功率传输特性会根据理论规律进行相应的变化。本论文重点分析研究了该系统的距离传输特性，通过对谐振线圈的电感、线宽、电容等自身参数和驱动电源电压、驱动原信号频率等外界参数进行改变，研究随着改变这些参数，该系统距离传输特性的变化规律，而且测试结果和理论值基本符合，从而实现了本论文的研究目的。关键词：谐振式磁耦合；无线能量传输；距离传输特性ⅡABSTRACTWirelesspowertechnology(WPT-WirelessPowerTechnology)asapowersupplytechnologydevelopmentinrecentyears,inlargepart,andnotasmalldifferencebetweenthetraditionalpowersupplytechnology.Allcurrentwirelessenergytransfermethods,thereisanewpowersupplytechnology,calledresonantmagneticcouplingwirelesspowertechnology,itcannotonlyincreasethedistancewirelesspowertometer-scalerangeandallowselectricalequipmentandpowersupplyequipmenttoachievephysicalisolation,thiswaybothforelectricalequipmentbeautiful,practical,butalsoimprovethesafetyindexofelectricalequipment.Themainsubjectofthepresentpaperismagneticallycoupledresonantwirelesschargingcircuit.Firstly,analysisoftheprinciplesonmagneticallycoupledresonantwirelesschargingsystem,Secondly,thefunctionandoperationprincipleofthecircuitmodulesareintroduced,Thendesignedatransmitterandreceivercircuitryofthesystem,Finally,theresonantmagneticcouplingwirelesschargingsystemarraycomparativetest,Analysisofitsfeaturesandpowertransmissiondistancetransmissioncharacteristics.Intheexperiment,bychangingthecircuitinherentparameter,Youcanfindpowertransfercharacteristicsandpowertransmissioncharacteristicsofthissystemwillmaketheappropriatechangesinthelawaccordingtothetheory.Thispaperfocusesonstudiesfromthetransmissioncharacteristicsofthesystem,Throughtheresonantinductanceofthecoil,linewidth,capacitorsandotherparametersanddrivetheirownpowersupplyvoltage,thedrivefrequencyoftheoriginalsignaloutsidetheparameterschange,Studieswithvaryingtheseparameterschangesofthesystemfromthetransmissioncharacteristics,andtestresultsandtheoreticalvaluesinline,inordertoachievethepurposeofthispaper.Keywords:resonantmagneticcoupling；wirelessenergytransfer；distancetransmissioncharacteristics目录0引言....................................................................................................................11绪论...................................................................................................................11.1课题研究背景.................................................................................................11.2应用领域.........................................................................................................11.3无线充电技术的研究现状.............................................................................21.4选题依据与意义.............................................................................................42无线能量传输基本原理...................................................................................52.1无线能量传输方式简介.................................................................................52.1.1微波式能量传输..........................................................................................52.1.2电感耦合式能量传输..................................................................................62.1.3磁耦合谐振式无线能量传输......................................................................82.2本章小结.......................................................................................................103谐振式磁耦合无线充电系统设计...............................................................1113.l谐振式磁耦合无线充电系统总体结构......................................................1113.2谐振式磁耦合无线充电系统发射电路设计...............................................113.2.1发射端主控模块......................................................................................113.2.2DC-AC电路的设计..................................................................................143.2.3反馈信号放大电路....................................................................................213.3谐振式磁耦合无线充电系统接收电路设计.............................................223.3.1接受端主控模块......................................................................................223.3.2整流滤波及反馈信号电路......................................................................263.3.3欠压自动关断电路..................................................................................263.4本章小结......................................................................................................274谐振式磁耦合无线充电系统传输特性研究.................................................284.1谐振式磁耦合无线充电系统的距离传输特性...........................................284.1.1谐振频率与线圈固有频率之间的关系....................................................284.1.2当传输距离固定时，接收端电压和信号驱动频率之间的关系...........284.1.3线圈固有频率对传输距离的影响............................................................304.1.4导线线径对传输距离的影响....................................................................324.1.5线圈直径对传输距离的影响....................................................................334.1.6电容参数对传输距离的影响..............