中国电机工程学报2019，Vol.39Issue(7)：1851-1861,11.DOI:10.13334/j.0258-8013.pcsee.181256
双边水冷永磁直线电机的磁热耦合分析
Electromagnetic-thermal Coupled Analysis of Water-cooled Double-sided Permanent Magnet Linear Synchronous Machines
陈轶 1卢琴芬 1沈燚明1
作者信息
- 1. 浙江大学电气工程学院,浙江省杭州市310027
- 折叠
摘要
Abstract
A 12-slots/11-poles (12S/11P) water-cooled double-sided permanent magnet (PM) linear synchronous machine (DPMLSM) was designed to produce high acceleration by supplied with extreme high current density.At this condition,a thermal analysis should be conducted due to the increase in copper loss and iron loss.An electromagneticthermal coupled model based on an improved double-loop circulatory technique was developed with 2D finite element analysis for DPMLSM with and without water-cooled system,which gave an overall consideration of materials in this machine.With this model,the convection coefficients,the influence of iron loss at different frequency and the impact of temperature rise on PMs were focused on.And then the influence of water flow rate was investigated under the continuous duty by calculating thermal characteristic.The predicted results show the output thrust force can increase about two times even if only adopting small water flow rate.Moreover,the maximum thrust force under different working conditions was discussed.Finally,the predicted results were validated by prototype measurements.关键词
退磁/双循环法/磁热耦合分析/铁耗/永磁直线电机/水冷系统Key words
demagnetization/double-loop circulatory technique/electromagnetic and thermal coupled analysis/iron loss/PM linear synchronous machine (PMLSM)/water-cooled system分类
信息技术与安全科学引用本文复制引用
陈轶,卢琴芬,沈燚明..双边水冷永磁直线电机的磁热耦合分析[J].中国电机工程学报,2019,39(7):1851-1861,11.
