永磁体分块对永磁变速机涡流损耗的影响研究  

Influence of Permanent Magnet Partition on Eddy Current Loss of Permanent Magnet Transmission

作　　者：罗帅 周钰峰 鲁仰辉 郝秀红[2] LUO Shuai;ZHOU Yu-feng;LU Yang-hui;HAO Xiu-hong(State Power Investment Corporation Research Institute,Co.,Ltd.,Beijing 102209,China;Yanshan University,College of MechEmical Engineering,Hebei Qinhuangdao 066004,China)

机构地区：[1]国家电投集团科学技术研究院有限公司,北京102209 [2]燕山大学机械工程学院,河北秦皇岛066004

出　　处：《机械设计与制造》2022年第7期139-142,148,共5页Machinery Design & Manufacture

基　　金：北京市科技计划项目—百千瓦级永磁变速机样机研制及示范应用(Z201100004520032)。

摘　　要：考虑永磁变速机中永磁体的材料特性,计算了永磁体磁场透入深度,为永磁体尺寸设计提供了依据;其次,建立了永磁变速机有限元模型,基于相对速度计算了内磁环、外磁环永磁体及调磁环的涡流损耗,讨论了永磁体圆周分块和轴向分块对变速机涡流损耗的影响。结果表明:永磁体涡流损耗较调磁环硅钢涡流损耗大得多,且永磁体涡流损耗随转速增加迅速增加;轴向分块及圆周方向分块均可大幅度降低变速机永磁体涡流损耗,但轴向分块更便于永磁体安装。Considering the material characteristics of the permanent magnet in the permanent magnet transmission,the penetration depth of the magnetic field is calculated,which provides the basis for the size design of the permanent magnet.The finite element model of the permanent magnet transmission is established,and the eddy current loss of the inner and outer permanent magnets and the magnetic adjusting ring is calculated based on the relative velocity.The influence of the circumferential and axial partition of the permanent magnet on the eddy current losses of the transmission is discussed.The results show that the eddy current loss of the permanent magnet is higher than that of the magnetic adjusting ring The results show that the eddy current loss of the steel is much larger,and the eddy current loss of the permanent magnet increases rapidly with the increase of the rotating speed;the eddy current loss of the permanent magnet can be greatly reduced by the axial block and the circumferential block,but the axial block is more convenient for the installation of the permanent magnet.

关 键 词：永磁变速机 永磁体 涡流损耗 分块 

分 类 号：TH16[机械工程—机械制造及自动化] TH113.1