船电技术|应用研究Vol.43No.062023.0684空冷永磁电机流场温度场耦合仿真分析孙良友1，唐晨琪2（1.海装武汉局驻湘潭地区军事代表室，湘潭411101A；2.海军工程大学电磁能技术全国重点实验室，武汉430074）摘要：本文以某型高功率密度空冷永磁电机为研究对象，首先通过仿真计算得到电机的损耗分布，然后基于构建的电机流场和温度场仿真模型，完成了温度场分布的仿真计算。结合永磁电机温升实验，验证了仿真模型的正确性，该方法能够为电机性能准确设计提供一定的技术支撑。讨论了提高进出口压差、转子增加风刺和增加挡风板等3种冷却措施对定子绕组和永磁体温度的影响，发现提高进出口压差的冷却效果最佳，在转子增加风刺的冷却效果有限，通过在标号6增加挡风板能降低永磁电机的温度。关键词：永磁电机流场温度场中图分类号：U671文献标识码：A文章编号：1003-4862（2023）06-0084-04Coupledsimulationanalysisoftheflowandtemperaturefieldsforanair-cooledpermanentmagnetmotorSunLiangyou1,TangChenqi2（1.XiangtanRepresentativesOffice,NavalWuhanRepresentativesBureau,Xiangtan411101,China；2.NationalKeyLaboratoryofScienceandTechnologyonElectromagneticEnergy,NavylUniversityofEngineering,Wuhan430074,China)Abstract:Thispaperintroducesacertaintypeofhigh-powerandhigh-densityair-cooledpermanentmagnetmotorastheresearchobject.First,thelossdistributionofthemotorisobtainedthroughsimulationcalculation.Then,basedontheconstructedsimulationmodeloftheflowfieldandtemperaturefield,andthesimulationcalculationofthetemperaturefielddistributioniscompleted.Combinedwiththetemperatureriseexperimentofthepermanentmagnetmotor,thecorrectnessofthesimulationmodelisverified.Thismethodcanprovidecertaintechnicalsupportfortheaccuratedesignofmotorperformance.Theeffectsofthreecoolingmeasuresonthetemperatureofthestatorwindingandpermanentmagnet,suchasincreasingtheinletandoutletpressuredifference,addingwindspikestotherotor,andaddingwindshields,arediscussed.Itisfoundthatthebestcoolingeffectistoincreasethepressuredifferencebetweentheinletandoutlet,whilethecoolingeffectofaddingwindspikestotherotorislimited.Thetemperatureofthepermanentmagnetmotorcanbereducedbyaddingawindshieldatlabel...
