Research on Permanent Magnet Brushless DC Motor Based on Bonded Magnets

IF 1.6 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Electrical Engineering & Technology Pub Date : 2024-08-15 DOI:10.1007/s42835-024-02007-2
Yinan Wang, Baichuan Liu, Yang Luo, Yuanfei Yang, Chunsheng Guo, Tingting Wang, Juntao Yu, Li Wang
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Abstract

The ring-shaped bonded magnet has the advantages of low cost, simple molding, easy assembly, and low eddy current loss, but it has weak magnetic performance. To improve the comprehensive performance of the motor, the motor structure needs to be optimized. In this paper, the ring-shaped bonded magnet is applied to the permanent magnet brushless DC(PMBLDC) motor. According to the characteristics of ring-shaped bonded magnet, a multi-parameter and multi-objective optimization method is proposed to shorten the design time and improve the optimization effect. Based on the equivalent magnetic circuit model, the key parameters affecting the motor performance are derived, then the requirements of permanent magnet demagnetization and motor stability are used as constraints to determine the range of parameter values. The sample data sets of the relationship between the structural parameters and the motor performance are established by the Taguchi method. The quadratic response surface regression model is used to fit the sample data set. Then the modified ant colony algorithm is used to search the optimal target. According to the optimized motor structure parameters, the motor prototype is processed. The results show that the optimized structure can effectively improve the output torque and reduce the cogging torque, torque ripple and operating noise without reducing the efficiency. The research results provide a basis for further development of the application of ring-shaped bonded magnet in micro-motors, and drive the development of motors with lightweight, miniaturization and low cost.

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基于粘结磁铁的永磁无刷直流电机研究
环形粘结磁铁具有成本低、成型简单、装配方便、涡流损耗小等优点,但磁性能较弱。为了提高电机的综合性能,需要对电机结构进行优化。本文将环形粘结磁体应用于永磁无刷直流(PMBLDC)电机。根据环形粘结磁铁的特点,提出了一种多参数、多目标的优化方法,以缩短设计时间,提高优化效果。根据等效磁路模型,得出影响电机性能的关键参数,然后以永磁体退磁和电机稳定性要求为约束条件,确定参数取值范围。采用田口方法建立了结构参数与电机性能关系的样本数据集。二次响应面回归模型用于拟合样本数据集。然后使用改进的蚁群算法搜索最优目标。根据优化后的电机结构参数,加工出电机原型。结果表明,优化后的结构能在不降低效率的前提下有效提高输出转矩,降低齿槽转矩、转矩纹波和运行噪声。该研究成果为进一步开发环形粘结磁铁在微电机中的应用提供了依据,并推动了电机轻量化、微型化和低成本化的发展。
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来源期刊
Journal of Electrical Engineering & Technology
Journal of Electrical Engineering & Technology ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
4.00
自引率
15.80%
发文量
321
审稿时长
3.8 months
期刊介绍: ournal of Electrical Engineering and Technology (JEET), which is the official publication of the Korean Institute of Electrical Engineers (KIEE) being published bimonthly, released the first issue in March 2006.The journal is open to submission from scholars and experts in the wide areas of electrical engineering technologies. The scope of the journal includes all issues in the field of Electrical Engineering and Technology. Included are techniques for electrical power engineering, electrical machinery and energy conversion systems, electrophysics and applications, information and controls.
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