无线电能传输发射和接收定向螺旋状天线设计

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1、-河北大学工商学院装订线本科生毕业论文（设计）题目：无线电能传输发射和接收定向螺旋状天线的设计学部信息科学与工程学部学科门类工学专业电气工程及其自动化学号.---姓名指导教师2014年5月19日.---无线电能传输发射和接收定向螺旋状天线的设计摘　　要无线电能传输是将电源的电能转变为可无线传播的电能，在接收端又将此电能转变回电能，从而到达对用电器的无线供电。本课题是利用电磁场的谐振方法，发射和接收线圈在某一个射频点上谐振，从而达到电能在中等距离传输的目的。磁共振耦合无线电能传输是通过发射线圈与接收线圈的磁场耦合共振来实现电能的无线传输。本课题通过介绍磁共振耦合无线电能传输的工作原理在此基础上设

2、计参数数据并实验验证。磁共振耦合无线电能传输中处于谐振的两个线圈共振频率一般设置在0.5-50MHz之间,共振频率越高,传输效率越高.但是在实际应用过程中,频率越高对电路器件要求相对也就越高,故一般选取频率不宜超过10MHz,本课题选取谐振频率是8MH来计算并且实验验证收发线圈方向性，在不同距离下收发线圈间传输频率与接收电压值的关系和传输距离与接收电压值的关系以及脉冲波占空比对接收电压的影响。关键词：无线电能传输；磁共振耦合；收发线圈；谐振频率；参数.---TransmittingAndReceivingWirelessPowerTransmissionDirectionalHelicalan

3、tennaDesignABSTRACTThewirelesspowertransferistransformingtheelectricpowertotheradiotransmissionpower，atthereceivingandturnthepowerbacktothepower,soastoreachthewirelesspowersupplyforelectricalappliances.Thisarticleisusingtheelectromagneticresonancemethod,transmittingandreceivingcoilsonacertainpointof

4、theradiofrequencyresonance,soastoachievethepurposeoftheelectricityinthemediumdistancetransmission.Magneticresonancecouplingcanradiotransmissionisbyemittingandreceivingcoilcoilmagneticfieldcouplingresonancetorealizethewirelesstransmissionofelectricity.Thistopicthroughtheintroductionoftheworkingprinci

5、pleofmagneticresonancecouplingradiocantransmitdataonthebasisofthedesignparametersandexperimentalverification.Magneticresonancecouplingintheradiocantransmitataresonantfrequencyresonanceofthetwocoilgenerallysetbetween0.5to50MHZ,thehighertheresonantfrequency,thehigherthetransmissionefficiency.Butinthep

6、rocessofpracticalapplication,thehigherthefrequencyofcircuitcomponentsarealsointhemoredemanding,sothegeneralselectionfrequencyshouldnotbemorethan10MHZ,thistopicselectionis8mhtotransmitfrequencycalculationandexperimentalverificationtransceivercoildirection,underthedifferentdistancebetweenthesendingand

7、receivingcoiltransmissionfrequencyandacceptvoltagevaluerelationsandthetransmissiondistanceandthevoltagevalueandtherelationshipbetweentheinfluenceofdutyratioonreceivingvoltagepulsewave.Keywords：wireles