第1期学术专论高速动车组线性涡流制动系统特性仿真研究杨利强1徐凯歌2刘赛赛3(1.徐州地铁集团有限公司,221018,徐州;2.徐州地铁运营有限公司,221018,徐州;3.南京中车浦镇海泰制动设备有限公司,211899,南京∥第一作者,正高级工程师)摘要基于涡流制动原理建立涡流制动力的数学模型,并利用ANSYSMaxwell软件建立LECB(线性涡流制动)三维仿真模型。根据控制变量法研究列车速度、气隙、励磁电流等因素对涡流制动特性的影响,并分析了常用制动和紧急制动工况下的电磁特性。研究结果表明:线性涡流制动力受速度的影响明显,低速时制动力快速上升并达到幅值,然后随着速度的增加,制动力下降并趋于平稳;励磁电流、励磁线圈匝数与线性涡流制动力成正相关,气隙、钢轨材料电导率与线性涡流制动力成负相关;相同条件下,励磁线圈材料为铝时,线性涡流制动系统产生的制动力大小优于励磁线圈材料为铜时产生的制动力。关键词高速动车组;涡流制动;有限元分析;控制变量法中图分类号U270.357…U266DOI:10.16037/j.1007-869x.2023.01.001CharacteristicSimulationofLinearEddyCurrentBrakingSystemofHigh-speedEMUYANGLiqiang,XUKaige,LIUSaisaiAbstractAmathematicalmodelofeddycurrentbrakingforceisestablishedbasedoneddycurrentbrakingprinciple,andtheLECB(lineareddycurrentbrake)3Dsimulationmodelises-tablishedusingANSYSMaxwellsoftware.Accordingtocontrolvariablemethod,theinfluenceoffactorssuchastrainspeed,airgap,excitationcurrentoneddycurrentbrakingchar-acteristicsisstudied,andtheelectromagneticcharacteristicsundercommonbrakingandemergencybrakingconditionsareanalyzed.Researchresultsshowthatthelineareddycurrentbrakingforceisobviouslyaffectedbythespeed.Atlowspeed,thebrakingforcerisesrapidlyandreachestheamplitude,andthendecreasesandbecomesstableasspeedincreases.Theexci-tationcurrentandthenumberofexcitationcoilturnsareposi-tivelycorrelatedwiththelineareddycurrentbrakingforce,whiletheairgapandtheconductivityofrailmaterialarenega-tivelycorrelatedwiththelineareddycurrentbrakingforce.Un-derthesameconditions,thebrakingforcegeneratedbythelin-eareddycurrentbrakingsystemwithexcitationcoilmaterialofaluminumislargerthanwithmaterialofcopper.Keywordshigh-spee...