湖北汽车工业学院学报2026，Vol.40Issue(1)：54-59,6.DOI:10.3969/j.issn.1008-5483.2026.01.010
油冷内置式永磁同步电机等效热网络建模与温度场分析
Equivalent Thermal Network Modeling and Temperature Field Analysis of Oil-cooled IPMSM
摘要
Abstract
To achieve accurate prediction of the temperature field and demagnetization risk assessment of oil-cooled interior permanent magnet synchronous motor(IPMSM)under high-speed working condi-tions,a lumped parameter thermal network(LPTN)coupling modeling method was proposed.The per-manent magnet was divided into six surface nodes and one central node to construct a three-dimension-al thermal resistance network;combined with the distribution of the spray-oil cooling circuit,a thermal resistance network was constructed based on the geometric characteristics and convective heat transfer characteristics of different cooling regions,and the overall LPTN model was formed through the cou-pling of each node.And the accuracy of the model was verified through prototype experiments.Based on this model,the motor temperature distribution and thermal response behavior at different speeds under typical operating conditions were analyzed,revealing the intrinsic relationship between the non-uni-form temperature of the permanent magnet and the risk of local demagnetization.关键词
内置式永磁同步电机/喷淋油冷/永磁体不均匀温度/集总参数热网络法Key words
interior permanent magnet synchronous motor/spray-oil cooling/non-uniform temperature of permanent magnet/lumped parameter thermal network分类
信息技术与安全科学引用本文复制引用
刘凌,王东雄,陈得有..油冷内置式永磁同步电机等效热网络建模与温度场分析[J].湖北汽车工业学院学报,2026,40(1):54-59,6.基金项目
湖北汽车工业学院揭榜制项目(2024JBB01) （2024JBB01）
湖北汽车工业学院博士科研启动基金(BK202009) （BK202009）
汽车动力传动与电子控制湖北省重点实验室开放基金(ZDK12025A01) （ZDK12025A01）
