无线电能传输

摘要随着电子产品的快速发展，越来越多的电源连接线开始困扰人们的生活，而电磁谐振耦合无线电能传输技术正可以很好解决对距离有较高要求的这类问题。电磁谐振耦合无线电能传输技术是近几年刚被提出的无线电能传输技术，它依靠近电磁场中近区场和谐振线圈的强耦合实现了电能的中程距离的高效传输。它改善了传统无线电能传输中技术中距离跟效率之间的不足，具有重要的研究价值和广阔的应用前景。在比较了多种拓扑结构和控制方法后，选定了半桥逆变为主拓扑控制方式，芯片SG3525为控制芯片，原边采用串联补偿，副边采用并联补偿，驱动方式为图腾柱结构。然后本文对这种控制方式的原理，存在的问题进行深刻的研究。在本设计中进行了实物设计，经测试表明，设计满足要求。关键词：电磁谐振耦合，无线电能传输，半桥逆变AbstractWiththerapiddevelopmentofelectronicproducts,moreandmorepowercablebegantoplaguethelivesofpeople,theelectromagneticresonantcouplingwirelesspowertransmissiontechnologycansolvethisproblemofhigherrequirementsisthedistance.Theelectromagneticresonantcouplingwirelesstransmissiontechnologyisanewtypeofwirelesstransmissiontechnology,whichutilizesnon-radiatedmagneticfieldofthenearfieldcouplingandtheresonanceprincipletorealizethedistancetothemid-rangeandeffectivetransferofelectricalenergy.Itovercomesthedisadvantagesoftraditionalwirelesspowertransferandhasimportantresearchvalueandbroadapplicationprospects.Afterthecomparisonofthevarioustopologiesandcontrolmethods,selectedthehalfbridgeinvertertopologycontrolways,SG3525chipasthecontrolchip,theoriginaledgewithseriescompensation,vicesideoftheparallelcompensation,drivemodeforthetotempolestructure.Thenthispapertheprincipleofthiscontrolmode,existingproblemsarestudieddeeply.Physicaldesignwascarriedoutinthisdesign,thetestshowedthatthedesignmeettherequirements.Keywords:Magneticcouplingresonant,Radiocantransmit,halfbridgeinvertertopologyI目录第1章绪论......................................................................................................11.1课题研究的意义..................................................................................11.2无线电能传输方式..............................................................................21.3国内外发展状况..................................................................................3第2章总系统设计...........................................................................................52.1设计任务与要求..................................................................................52.2设计任务分析......................................................................................62.3设计任务总体框图..............................................................................8第3章方案选择...............................................................................................93.1发射电路选择....................................................................................103.2MOSFET选择....................................................................................143.3接收电路选择....................................................................................153.4接收电路器件选择..............................................................................183.5控制电路选择...................................................................................183.6驱动电路选择...................................................................................243.6.1磁的基本概念........................................................................253.6.2驱动变压器..............................................................................283.7谐振方式选择....................................................................................333.8谐振电感和电容选择.........................................................................37第4章电路测试.............................................................................................404.1波形分析............................................................................................404.2实验结果............................................................................................44结论..............................................................................................................45致谢..............................................................................................................46II参考文献..........................................................................................................47IIIContentsChapter1Introduction.................................................................................11.1Thesignificanceoftheresearch.........................................................11.2Radiotransmissionmode....................................................................21.3Thedevelopmentsituationathomeandabroad....................................3Chapter2Thetotalsystemdesign...............................................................52.1Thedesigntaskandrequirements.......................................................52.2Designtaskanalysis...........................................................................62.3Theoverallblockdiagramdesigntask................................................8Chapter3Schemeselection.........................................................................93.1Transmissioncircuitselection.............................................................93.2MOSFETselection.............................................................................143.3Receivingcircuitselection.................................................................153.4Receivingcircuitcompone