高效永磁调速器的损耗计算与分析  

Loss Calculation and Analysis of Efficient Permanent Magnet Coupler

作　　者：于林鑫 王大志[1] 李硕[1] 郑迪[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2017年第11期1524-1529,共6页Journal of Northeastern University(Natural Science)

基　　金：中央高校基本科研业务费专项资金资助项目(N150403005)

摘　　要：针对高效永磁调速器各部件的电磁损耗相关问题,以一台1 MW高效永磁调速器为例,基于对损耗的理论分析和涡流场理论,建立了运动涡流场的三维有限元分析模型.利用时步有限元法,对1 MW高效永磁调速器的铜盘损耗、永磁体涡流损耗以及永磁体背衬钢盘对转矩的影响进行了详细的分析与计算.通过对1 MW高效永磁调速器的实验分析和有限元仿真,验证了分析与计算的正确性和规律的实用性.最后深入分析了分段永磁体对永磁体涡流损耗的影响,为永磁调速器的效率分析、散热设计以及损耗优化提供了理论依据.In allusion to the problems of electromagnetic loss of the permanent magnet coupler （PMC） , a 1 MW efficient PMC was utilized. Based on the theoretical analysis of loss and the theory of eddy current field, a three-dimensional finite element model of the eddy current field is established. The time-stepping finite element method is used to detailedly analyze and calculate the copper plate loss,permanent magnet eddy current loss and the torque of PM back iron of the 1 MW PMC. The correctness and practicability of the analysis and calculation are validated by the experiment analysis and finite element simulation. Finally, the influence of the segmented permanent magnet on the eddy current loss is analyzed. It provides the theoretical basis for the efficiency analysis,heat dissipation design and loss optimization of PMC.

关 键 词：铜盘损耗 永磁体涡流损耗 钢盘厚度 有限元 分段永磁体 

分 类 号：TP215[自动化与计算机技术—检测技术与自动化装置]