E型铁心开关磁通电机的电磁性能解析计算
由于复杂磁路的影响,开关磁通电机电磁性能的解析计算是个难点。采用子域法,通过子域划分、建立偏微分方程与通解、确立边界条件和积分常数求解等步骤建立E型铁心结构开关磁通电机的解析模型,计算得到了各子域矢量磁位、磁通密度、绕组磁链、电动势和电磁转矩,分析了不同定转子极数组合对绕组电动势和齿槽转矩的影响,得到了合适的极数组合。与有限元法计算结果的对比表明,空载时两者计算结果非常接近,负载时由于电枢反应磁场的影响,与非线性有限元相比,解析法会带来一定误差。虽然该解析模型不能考虑饱和的影响,由于解析法计算速度快,能得到规律性的结论,非常适合电机的初始设计和优化计算。...
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| Published in | 电机与控制学报 Vol. 20; no. 1; pp. 67 - 72 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
山东大学 电气工程学院,山东 济南,250061
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1007-449X |
| DOI | 10.15938/j.emc.2016.01.010 |
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| Summary: | 由于复杂磁路的影响,开关磁通电机电磁性能的解析计算是个难点。采用子域法,通过子域划分、建立偏微分方程与通解、确立边界条件和积分常数求解等步骤建立E型铁心结构开关磁通电机的解析模型,计算得到了各子域矢量磁位、磁通密度、绕组磁链、电动势和电磁转矩,分析了不同定转子极数组合对绕组电动势和齿槽转矩的影响,得到了合适的极数组合。与有限元法计算结果的对比表明,空载时两者计算结果非常接近,负载时由于电枢反应磁场的影响,与非线性有限元相比,解析法会带来一定误差。虽然该解析模型不能考虑饱和的影响,由于解析法计算速度快,能得到规律性的结论,非常适合电机的初始设计和优化计算。 |
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| Bibliography: | YANG Yu-bo,WANG Ning,WANG Xiu-he（School of Electrical Engineering, Shandong University, Jinan 250061, China） 23-1408/TM flux switching permanent magnet machine; E-core; doubly-salient; analytical method; finite element method Because of the complexity of magnetic field,it is difficult to calculate the magnetic field of flux switching permanent magnet（ FSPM） motor by analytical method. The analytical model of E-core FSPM motor was advised with the subdomain method. The whole domain was divided into several subdomains based on the electronic and magnetic properties,and the partial differential equations were built in all subdomains. With the general solution and boundary condition,the magnetic vector potential was obtained. Then the flux density,coil flux and coil EMF were calculated. At last,the calculated results are verified with finite element method（ FEM）. Although the saturation can not be considered in the analytical model,it is very useful in the initial design and optimization design of FSPM motor because |
| ISSN: | 1007-449X |
| DOI: | 10.15938/j.emc.2016.01.010 |