New Equivalent model and Modal Analysis of Stator Core-Winding System of Permanent Magnet Motor With Concentrated Winding
New Equivalent model and Modal Analysis of Stator Core-Winding System of Permanent Magnet Motor With Concentrated Winding
复制标题
集中绕组永磁电机定子铁芯绕组系统新等效模型及模态分析
DOI：
10.1109/access.2020.2989141
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发表时间：
2020
期刊：
影响因子：
3.9
通讯作者：
Wang Yongchao
中科院分区：
文献类型：
--
作者：
Hongbin Yin;Xueyi Zhang;Fangwu Ma;Cansong Gu;Hui Gao;Wang Yongchao
为了设计低振动电机并使其安静运行，准确预测电机定子的模态特性至关重要。学者们对定子铁芯和绕组的模态分析做了大量的研究。然而，关于定子系统的0阶模态振型和频率的论文却很少。本文旨在提出一种新的定子系统分析模型，能够有效分析0阶模态，提高模型计算效率。首先对定子铁芯及定子铁芯绕组系统的模态进行了理论分析。其次，建立了四个定子系统的有限元分析模型。使用这四种模型对定子铁芯和定子铁芯绕组系统进行了模态分析。比较了定子铁芯和定子铁芯绕组系统的四种模型的有效性和计算效率。提出了一种新的定子系统分析模型。再次，采用锤击法对定子铁芯及定子铁芯绕组系统进行模态试验，验证了有限元分析模型的有效性。与传统模型相比，新提出的模型可以更有效地分析0阶模态，提高计算效率。
An accurate prediction of modal characteristics of motor stator is essential in order to design a low vibration motor and to operate it quietly. Scholars have done a lot of research on the modal analysis of stator core and winding. However, there are few papers for the 0th-order mode shape and frequency of the stator system. This paper aims to propose a new stator system analysis model, which can effectively analyze the 0th-order mode and improve the model calculation efficiency. Firstly, the modal of stator core and stator core-winding system were analyzed theoretically. Secondly, four stator system finite element analysis models were established. The modal analysis of the stator core and stator core-winding system were carried out using the four models. The validity and computational efficiency of the four models of the stator core and stator core-winding system were compared. A new stator system analysis model was proposed. Thirdly, the modal tests of the stator core and stator core-winding system were carried out by hammering method, and the validity of the finite element analysis model was verified. Compared with the traditional model, the newly proposed model can analyze the 0th-order mode more effectively and improve the computational efficiency.
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