| 基于不同定子槽模型的分段磁路分析 |
| |
| 引用本文： | 武文皓,竺韵德,于大国.基于不同定子槽模型的分段磁路分析[J].航空动力学报,2018,45(3):90-96. |
| |
| 作者姓名： | 武文皓 竺韵德 于大国 |
| |
| 作者单位： | 中北大学 机械与动力工程学院,山西 太原030051;中国科学院 宁波材料技术与工程研究所,浙江 宁波315201,中国科学院 宁波材料技术与工程研究所,浙江 宁波315201,中北大学 机械与动力工程学院,山西 太原030051 |
| |
| 基金项目： | 国家自然科学基金项目(51175482/E05091) |
| |
| 摘 要： | 结合等效磁场实现转子内磁场强度至转子轭表面的转换,分别建立了开口、半开(闭)口定子槽模型,采用分段磁路法分析各段磁路长度变化情况,给出了不同定子槽模型下齿槽转矩的解析式。分析定子冲片选用不同牌号的硅钢片材料对齿槽转矩的影响。经研究表明:分段磁路法能够提高槽间磁路近似精度,且经分析优选的定子硅钢片材料可较为有效地削弱齿槽转矩。
|
| 关 键 词： | 等效磁场 齿槽转矩 分段磁路 磁路近似精度 有限元分析 |
Analysis of the Partitions Magnetic Circuit Based on DifferentStator Slots Opening Shape |
| |
| WU Wenhao,ZHU Yunde and YU Daguo.Analysis of the Partitions Magnetic Circuit Based on DifferentStator Slots Opening Shape[J].Journal of Aerospace Power,2018,45(3):90-96. |
| |
| Authors: | WU Wenhao ZHU Yunde and YU Daguo |
| |
| Institution: | School of Mechanical and Power Engineering, North University of China, Taiyuan 030051, China;Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, China,Ningbo Institute of Materials Technology and Engineering, CAS, Ningbo 315201, China and School of Mechanical and Power Engineering, North University of China, Taiyuan 030051, China |
| |
| Abstract: | Considering the opening of stator slot, the precision of air gap flux density error correction directly affected accuracy of cogging torque. Correcting magnetic flux leakage of flux barrier, magnetic field intensity inside the rotor can be equivalent to the one on rotor surface. The mathematical models of opening slots and half opening slots were established respectively. The variation of magnetic path length was analyzed by partitions magnetic circuit, for illustrating mathematical correlation of cogging torque and different slot opening shape. The effect of various grades silicon steel sheet on cogging torque was analyzed. The study shows that the method above can access comparatively high approximation precision, the material determined by comparative analysis can reduce cogging torque effectively as well. |
| |
| Keywords: | equivalent magnetization cogging torque partitions magnetic circuit approximation precision finite element analysis |
|
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
