整体转子结构永磁屏蔽电机的设计与优化  

Design and optimization of a permanent magnet canned motor with an integral rotor

作　　者：倪有源[1,2] 黄亚[1] 何强[1] 

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽合肥230009 [2]工业节电与电能质量控制省级协同创新中心,安徽合肥230601

出　　处：《电机与控制学报》2015年第12期68-74,共7页Electric Machines and Control

基　　金：安徽省自然科学基金(1508085ME89);安徽省工业节电与电能质量控制协同创新中心开放课题基金(KFKT201502)

摘　　要：通过对双凸极永磁电机的分析,设计了一款用于管道屏蔽电泵的小功率整体转子结构永磁屏蔽电机。在此基础上,为了提高永磁屏蔽电机的效率,对该电机进行了优化设计。设计的电机为整体永磁转子,极弧系数为1,无转子铁心,且对定子结构进行了漏磁分析与设计。由于经验公式法无法精确计算涡流损耗,为此采用三维瞬态有限元方法分析计算了定转子屏蔽套的涡流损耗,并对该永磁屏蔽电机的性能进行了分析。然后采用拟牛顿法对该永磁屏蔽电机进行优化分析,使得在满足一定的约束条件下,效率达到最大值。最后制作了样机,样机实测结果验证了计算结果的正确性。On the basis of a double salient PM motor, a permanent magnet （PM） canned motor with an integral rotor was designed for the pipe canned electric pump. In addition, the optimal design of the mo- tor was performed in order to improve the efficiency of the motor. The designed PM motor has PM rotor with an embrace of unity and no rotor core. The stator flux 1 an integral eakage was analyzed and the stator was designed. Furthermore, the eddy current loss of the can and the performance of the motor were ana- lyzed using a three dimensional （3D） transient finite element （FE） method for the inaccuracy by the em- pirical formula method. In addition, the optimization analysis of the PM canned motor was performed using the quasi-Newton method. The optimization results were given in terms of the maximum of the efficiency and some constraint conditions. Finally, the measured results of the prototype validated the computed results.

关 键 词：整体转子结构 永磁屏蔽电机 三维瞬态有限元方法 涡流损耗 优化 

分 类 号：TM351[电气工程—电机]