ElectricalAutomation自动化装置与设备AutomationDevices&Equipments《电气自动化》2023年第45卷第1期长大下坡运行下动车组牵引仿真算法研究及系统开发陈争1,孙宁1,韩鑫2,李沃阳3,王东阳3(1.中车青岛四方机车车辆股份有限公司,山东青岛266111;2.西南交通大学机械工程学院,四川成都610031;3.西南交通大学电气工程学院,四川成都611756)摘要:针对线路仿真中缺少符合动车组制动特点的长大下坡道运行策略问题,提出复杂运行工况下动车组牵引仿真计算方法。基于误差评价的位移逼近算法和变步长迭代逼近算法求解精确的制动点,将传统空气制动的“惰行+制动”运行策略进行拓展,得到适合处理高速电制动长大下坡问题的牵引仿真算法。开发系统运用于实际线路。结果表明,系统提升了制动点求解精确性,能为牵引工程精细化设计提供数据支持。关键词:牵引计算;制动点;变步长迭代;动车组;牵引仿真系统DOI:10.3969/j.issn.1000-3886.2023.01.029[中图分类号]TM743[文献标志码]A[文章编号]1000-3886(2023)01-0099-04ResearchonTractionSimulationAlgorithmandSystemDevelopmentofElectricMultipleUnitsUnderLong&LargeDownhillOperationChenZheng1,SunNing1,HanXin2,LiWoyang3,WangDongyang3(1.CRRCQingdaoSifangCo.,Ltd.,QingdaoShandong266111,China;2.SchoolofMechanicalEngineering,SouthwestJiaotongUniversity,ChengduSichuan610031,China;3.SchoolofElectricalEngineering,SouthwestJiaotongUniversity,ChengduSichuan611756,China)Abstract:Aimingatthelackoflongandlargedownhillrunningstrategiesinlinesimulationthatmeetthebrakingcharacteristicsofelectricmultipleunits(EMUs),asimulationcalculationmethodfortractionofEMUsundercomplexoperatingconditionswasproposed.Thedisplacementapproximationalgorithmbasedonerrorevaluationandthevariablesteplengthiterativeapproximationalgorithmsolvedtheprecisebrakingpoint,expandedthe“coasting+braking”operatingstrategyoftraditionalairbraking,andwassuitableforhandlingtheproblemofhigh-speedelectricbrakingonlongandlargedownhillslopes.Thetractionsimulationalgorithmandthedevelopmentsystemwereappliedtotheactuallines.Thefinalresultsshowthatthesystemhasimprovedtheaccuracyofthebrakingpointsolution,andcanprovideda...