新型材料结构无轴承永磁电机输出特性影响分析  

Influence Analysis on Output Characteristics of Bearingless Permanent Magnet Motor with New Materials and Structures

作　　者：陈苗 年顺 Chen Miao;Nian Shun(Dexing Copper Mine of Jiangxi Copper Industry Group Co.,Ltd.,Jiangxi,334200)

机构地区：[1]江西铜业集团有限公司德兴铜矿,江西334200

出　　处：《当代化工研究》2024年第5期44-46,共3页Modern Chemical Research

摘　　要：针对目前大部分无轴承永磁电机的转子材料和结构性能较差导致电机输出特性不优的问题,本文提出了一种新型的无轴承永磁电机转子材料与转子组合。一方面,研究不同材料(铁氧体、铝镍钴、稀土钕铁硼)对转矩密度、功率密度、效率等方面的影响,确定出能使电机性能最优的材料。另一方面,设计了一种新型的永磁转子结构,并采用ANSYS对包括永磁转子结构在内的三种结构进行电磁有限元分析。结果表明,本文设计的新型材料、结构可以显著提高无轴承永磁电机的悬浮性能,新型Halbach阵列转子结构性能最优,且进一步提高了工作效率和永磁体利用率,这为无轴承永磁电机的结构优化和性能提升提供了空间。Aiming at the problem that the rotor material and structural performance of most bearingless permanent magnet motors are poor,resulting in poor motor output characteristics,this paper proposes a new type of bearingless permanent magnet motor rotor material and rotor combination.On the one hand,the influence of different materials(ferrite,AlNiCo,NdFeB)on torque density,power density,efficiency,etc.is studied,and the material that can optimize the performance of the motor is determined.On the other hand,a new type of permanent magnet rotor structure is designed,and ANSYS is used to conduct electromagnetic finite element analysis on the three structures including the permanent magnet rotor structure.The results show that the new material and structure designed in this paper can significantly improve the suspension performance of bearingless permanent magnet motor.

关 键 词：无轴承永磁电机 稀土钕铁硼 输出特性 有限元分析 

分 类 号：TM351[电气工程—电机]