电工技术学报2017，Vol.32Issue(22)：91-100,10.DOI:10.19595/j.cnki.1000-6753.tces.L70519
全封闭高速永磁电机转子结构对转子散热的影响
Effect of Rotor Structure on Rotor Dissipation for Totally-Enclosed High-Speed Permanent Magnet Motor
摘要
Abstract
In order to study the influence of rotor structure on rotor heat dissipation for totally enclosed water-cooling high speed permanent magnet motors (HSPMMs), a 15kW, 30 000r/min high-speed amorphous alloy permanent magnet motor was taken as an example. On the basis of computational fluid dynamics (CFD) and heat transfer theory, the computation model of fluid-solid conjugate heat transfer was established, and the coupled field was calculated using finite volume method by giving fundamental assumptions and corresponding boundary conditions. The temperature distributions of each part and air flow characteristics in the motor were obtained under several conditions, that is, with and without axial ventilation holes, the combination between ventilation holes and wafters of rotor. Thereafter, the influence of different ventilation hole sizes and number on fluid and temperature field were studied. The calculated results show that the cooling condition is improved, and the temperatures of permanent magnets are reduced by introducing the rotor wind pressure parts. The temperature of permanent magnet can further decrease by increasing the area of rotor ventilation holes. At last, the temperature rise test for a 15kW totally enclosed water-cooling HSPMSM was conducted. The test data were compared with the calculated results, which validated correctness of the solution method of coupled field.关键词
全封闭高速永磁电机/流固耦合/空气摩擦损耗/温度场/转子通风孔/转子风刺Key words
Totally enclosed high speed permanent magnet motor (HSPMM)/fluid-solid coupling/air-friction loss/temperature field/rotor axial ventilation holes/rotor wafters分类
信息技术与安全科学引用本文复制引用
佟文明,孙静阳,吴胜男..全封闭高速永磁电机转子结构对转子散热的影响[J].电工技术学报,2017,32(22):91-100,10.基金项目
国家自然科学基金项目(51307111,51677122)、国家重点研发计划(2016YFB0300503)和辽宁省教育厅科学研究项目(LGD20160006)资助. （51307111,51677122）
