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浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)
Electrical Engineering     
Analytical model of air gap magnetic field for electric excitation claw pole alternators
ZUO Shu guang, WU Shuang long, WU Xu dong, LIN Fu, Deng Wen zhe
Clean Energy Automotive Engineering Center, Tongji University, Shanghai 201804, China
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Abstract  

A new analytical model was presented to calculate the air gap magnetic field in order to realize the quick computation and analysis of the performance of electric excitation claw pole alternators. Firstly, Fourier series decomposition was applied to compute the no-load air gap magnetomotive force (MMF), armature reaction MMF and air gap permeance. Then, no-load air gap magnetic field and armature reaction field were derived based on the MMF and permeance. Correction factor was introduced to consider the influence of rotor claw shape and stator slots. Finally, 3D finite element analysis and experimental results were presented for verifying the accuracy of the proposed model. The model established the relationship between the air gap magnetic field and motor parameters. It is suitable for fast computation of the magnetic field in the initial design stage and performance optimization of the claw pole alternators.

Published: 08 December 2016
CLC:  TM 359.9  
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Cite this article:

ZUO Shu guang, WU Shuang long, WU Xu dong, LIN Fu, Deng Wen zhe. Analytical model of air gap magnetic field for electric excitation claw pole alternators. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2016, 50(12): 2400-2408.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2016.12.021     OR     http://www.zjujournals.com/eng/Y2016/V50/I12/2400


电励磁爪极发电机气隙磁场解析模型

为了对电励磁爪极发电机的性能进行快速计算和分析,提出一种新的气隙磁场解析计算模型.利用傅里叶级数分解推导空载气隙磁动势、电枢反应磁动势和气隙磁导,基于磁势和磁导得到空载气隙磁场和电枢反应磁场,同时引入修正系数考虑转子极爪形状和定子开槽的影响.通过有限元方法和试验结果验证了该解析模型的准确性.该模型建立了爪极电机的气隙磁场与电机参数之间的关系,适合在爪极发电机的初始设计阶段对其气隙磁场进行快速计算和性能优化.

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