电机与控制应用2017，Vol.44Issue(7)：13-19,7.
盘式永磁同步电机永磁体涡流损耗研究
Study on Eddy Current Loss of Permanent Magnet for Disc Permanent Magnet Synchronous Motor
摘要
Abstract
Because there exist eddy current loss in permanent magnet,it will give off in the form of heat.This will cause high temperature in disc permanent magnet synchronous motor (DPMSM).When the temperature is too high,it will cause the problem of degenerate performance of the motor.So conducted intensive studies on the permanent magnets of motor,and further research on these issues was of great significance to improve the performance of disc permanent magnet synchronous motor and its optimization design.In order to reduce the eddy current loss of permanent magnet,the methods of the permanent magnet segment and shielding layer was used.Maxwell,threedimensional finite element analysis software,was used to establish the finite element model of the motor,reveal the electromagnetic distribution around permanent magnet and receive the average eddy current loss of permanent magnet when the motor was driven by three-phase sinusoidal current source.The method,segment in several different directions and simulation,was applied to show that the splitting into three pieces horizontally was the best by comparison,when the permanent magnets were segmented.Firstly,the principle's reliability should be verified,and then the optimal value of shielding layer thickness could be get by MATLAB curve fitting,when using the electromagnetic shielding principle reduce eddy current loss.关键词
盘式永磁同步电机/永磁体分块/电磁屏蔽原理/涡流损耗/曲线拟合Key words
disc permanent magnet synchronous motor (DPMSM)/permanent magnet segment/electromagnetic shielding principle/eddy current loss/curve fitting分类
信息技术与安全科学引用本文复制引用
刘福贵,张建宇,赵志刚,杨乾坤..盘式永磁同步电机永磁体涡流损耗研究[J].电机与控制应用,2017,44(7):13-19,7.基金项目
国家自然科学基金(51107026/51677052/51237005) （51107026/51677052/51237005）
