基于多软件协同的电驱系统DC-Link电容热仿真研究

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中图分类号：U463.63 文献标识码：A 文章编号：1003-8639（2025）07-0101-03

Thermal Simulation of Electric Drive SystemDC-Link Based onMulti-softwareCollaboration Zhou Liping

(Anhui EIKTO Battery Co.，Ltd.，Xuancheng24200O，China）

【Abstract】With the rapid development of the new energyvehicle industry，the electric drive system as its core component，itsperformanceand reliabilityhaveadecisiveimpactonthe vehicleperformance.Asakeycomponent in the electricdrivesystem，theDC-Link capacitor isresponsibleforsmoothing voltage fluctuationsand filtering out highfrequencynoise，anditsthermalmanagementiscriticaltothestabilityandlifeofthesystem．Thispaperpresentsa methodof DC-Link capacitive thermal simulationanalysisof electric drive system basedon Matlab，Q3Dand Icepak. Firstly，thecircuit simulationiscarriedoutusing Matlab todeterminetheworkingstateandcorelossparametersof the capacitor.Then，theelectromagneticfield simulationiscarriedoutbyQ3Dsoftware toobtain theelectromagnetic lossof capacitorcopperbar.Finally，combined with Icepak，thermal simulation iscarriedout toanalyze the temperature distributionand heatflowpathof thecapacitor.This study notonly providesatheoretical basis fortheselectionof DCLink capacitors，but also provides an effective solution for the thermal management of electric drive systems.

【Key Words】 electric drive system；DC-Link capacitor; thermal simulation；MATLAB；Q3D；Icepak

0 引言

随着全球对可持续能源和环境保护的日益关注，新能源汽车行业迎来了快速发展的机遇[1-3]。（剩余5043字）