双并列转子永磁同步电机转矩脉动产生机理及抑制

doi:10.19595/j.cnki.1000-6753.tces.231410

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Abstract In extruder, two-roll mill, twin-screw pump and other parallel driving mechanical equipment, the current driving mode is an induction motor to drive the drive shaft, and the drive shaft transmits the torque to the driven shaft through the synchronous mechanical gear. This transmission mode has some problems, such as large system volume, low system efficiency, difficult sealing, and regular maintenance. Therefore, the dual-parallel rotor permanent magnet synchronous motor has gradually attracted attention.
Due to the absence of partial stator core and windings, the dual-parallel rotor permanent magnet synchronous motor has a large torque ripple, which limits its application in parallel drive machinery. In this paper, the mechanism of torque ripple in dual-parallel rotor permanent magnet motor is analyzed, and the corresponding suppression methods are proposed. Firstly, the advantage of N-S type rotor is illustrated by comparing the N-N type and N-S type two rotor structures. On this basis, the mechanism of torque ripple is studied. According to the different influencing factors, the mechanism of cogging effect, end effect, permanent magnet gear effect and winding parameter asymmetry on the motor torque ripple are analyzed step by step, and the analytical expression of each torque component is constructed. Secondly, the correctness of theoretical analysis is verified by finite element model. According to the different components of torque ripple, the corresponding suppression methods are proposed. The suppression of no-load torque can be realized by optimizing the structure parameters of the motor, and the suppression of ripple torque can further be realized by optimizing the windings position distribution. Finally, a prototype test platform is built to verify the accuracy of the analytical model.
The following conclusions can be drawn from the simulation analysis: (1) The torque ripple of dual-parallel rotor permanent magnet synchronous motor comes from four components, namely, cogging torque, end effect torque, permanent magnet gear transmission torque and ripple torque caused by asymmetry of winding parameters, and the first three components are collectively referred to as no-load torque. (2) No-load torque is the main component of torque ripple, ripple torque is a secondary component of torque ripple. The 2nd harmonics, 12th harmonics and 24th harmonics in no-load torque are the most important components. Among them, the 2nd harmonic is caused by the end effect torque and the permanent magnet gear transmission torque, the 12th harmonic and the 24th harmonic are caused by the cogging torque. The 12 harmonics content in ripple torque is the largest. (3) The no-load torque of the motor can be effectively suppressed by optimizing the structural parameters of the motor, such as the polar arc coefficient of the permanent magnet, the eccentricity of the permanent magnet, the duty angle, the coupling distance, and the shape of the core end at the splice. Ripple torque can be suppressed to some extent by optimizing the winding position distribution.

Key words： Dual-parallel rotor permanent magnet synchronous motor torque ripple no-load torque structure optimization

Received: 29 August 2023

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	Chen Yang
	Tao Dajun
	Wang Likun
	Ge Baojun
	Li Shoupeng

Cite this article:

Chen Yang,Tao Dajun,Wang Likun等. Mechanism and Suppression of Torque Ripple of Dual-Parallel Rotor Permanent Magnet Synchronous Motor[J]. Transactions of China Electrotechnical Society, 2024, 39(20): 6357-6370.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.231410 OR https://dgjsxb.ces-transaction.com/EN/Y2024/V39/I20/6357

[1] 戴思锐, 张炳义, 厉伟, 等. 一种定子连体双转子同步并行直驱永磁电机[J]. 电工技术学报, 2020, 35(10): 2107-2118.
Dai Sirui, Zhang Bingyi, Li Wei, et al.A parallel direct-driven permanent magnet synchronous motor with stator connected dual-rotors synchronous[J]. Transactions of China Electrotechnical Society, 2020, 35(10): 2107-2118.
[2] 陶大军, 陈阳, 李峥, 等. 双并列转子永磁直驱电机转子不平衡力分析与优化[J]. 电工技术学报, 2024, 39(10): 2961-2973.
Tao Dajun, Chen Yang, Li Zheng, et al.Analysis and optimization of unbalanced electromagnetic force on the rotor of dual-parallel rotor permanent magnet direct-driven motor[J]. Transactions of China Elec- trotechnical Society, 2024, 39(10): 2961-2973.
[3] 黄家楠, 章玮. 定子连体双轴永磁电机稳态特性分析[J]. 电机与控制学报, 2023, 27(6): 1-7.
Huang Jianan, Zhang Wei.Analysis of steady state characteristics of connected permanent magnet synchronous motor[J]. Electric Machines and Control, 2023, 27(6): 1-7.
[4] 陶大军, 陈阳, 李凌霄, 等. MW级双并列转子低速永磁直驱电机设计方法与性能分析[J]. 电机与控制学报, 2023, 27(9): 82-90.
Tao Dajun, Chen Yang, Li Lingxiao, et al.Design method and performance analysis of MW-level dual-parallel rotor low-speed permanent magnet direct-driven motor[J]. Electric Machines and Control, 2023, 27(9): 82-90.
[5] Zhang Chi, Chen Feixue, Qiu Shuheng, et al.A low detent force DS-PMSLM based on the modulation of cogging and end forces[J]. IEEE Transactions on Industrial Electronics, 2023, 70(1): 721-730.
[6] Wang Tengguang, Zhu Xiaoyong, Xiang Zixuan, et al.Torque ripple suppression of a permanent magnet vernier motor from perspective of shifted air-gap permeance distribution[J]. IEEE Transactions on Magnetics, 2022, 58(8): 8203006.
[7] 王培欣, 花为, 胡铭觐, 等. 余弦削极转子磁通切换永磁电机设计与性能分析[J]. 中国电机工程学报, 2022, 42(22): 8372-8382.
Wang Peixin, Hua Wei, Hu Mingjin, et al.Design and performance analysis of flux-switching permanent magnet machine with cos-chamfering rotor[J]. Proceedings of the CSEE, 2022, 42(22): 8372-8382.
[8] 邢泽智, 王秀和, 赵文良. 基于不同极弧系数组合分段倾斜磁极的表贴式永磁同步电机齿槽转矩削弱措施研究[J]. 中国电机工程学报, 2021, 41(16): 5737-5748.
Xing Zezhi, Wang Xiuhe, Zhao Wenliang.Research on reduction methods of cogging torque based on segmented skewing magnetic poles with different combinations of pole-arc coefficients in surface- mounted permanent magnet synchronous motors[J]. Proceedings of the CSEE, 2021, 41(16): 5737-5748.
[9] Peng Chen, Wang Daohan, Wang Bingdong, et al.Torque ripple and electromagnetic vibration suppression in permanent magnet synchronous motor using segmented rotor with different pole widths[J]. IEEE Transactions on Magnetics, 2022, 58(9): 8206505.
[10] 鲍晓华, 朱然, 刘佶炜, 等. 基于相位分析的双定子低速大转矩永磁同步电动机转矩脉动研究[J]. 电工技术学报, 2022, 37(22): 5660-5669.
Bao Xiaohua, Zhu Ran, Liu Jiwei, et al.Torque ripple analysis of dual-stator surface mounted low-speed high-torque permanent magnet synchronous motors based on phase analysis[J]. Transactions of China Electrotechnical Society, 2022, 37(22): 5660-5669.
[11] 沈燚明, 卢琴芬. 初级励磁型永磁直线电机研究现状与展望[J]. 电工技术学报, 2021, 36(11): 2325-2343.
Shen Yiming, Lu Qinfen.Overview of permanent magnet linear machines with primary excitation[J]. Transactions of China Electrotechnical Society, 2021, 36(11): 2325-2343.
[12] 蒋钱, 卢琴芬, 李焱鑫. 双三相永磁直线同步电机的推力波动及抑制[J]. 电工技术学报, 2021, 36(5): 883-892.
Jiang Qian, Lu Qinfen, Li Yanxin.Thrust ripple and depression method of dual three-phase permanent magnet linear synchronous motors[J]. Transactions of China Electrotechnical Society, 2021, 36(5): 883-892.
[13] Tan Qiang, Wang Mingyi, Li Liyi, et al.Pulsating magnetic field of permanent magnet linear synchronous motor and its influence on detent force[J]. IEEE Transactions on Energy Conversion, 2021, 36(2): 703-712.
[14] Tan Qiang, Huang Xuzhen, Li Liyi, et al.Analysis of flux linkage and detent force for a modular tubular permanent magnet synchronous linear motor with large slots[J]. IEEE Transactions on Energy Conversion, 2019, 34(3): 1532-1541.
[15] Tan Qiang, Huang Xuzhen, Li Liyi, et al.Research on inductance unbalance and thrust ripple suppression of slot-less tubular permanent magnet synchronous linear motor[J]. IEEE Access, 6: 51011-51020.
[16] 付东山, 吴康伊, 郑萍, 等. 磁路互补型横向磁通切换直线电机电磁推力计算与特性分析[J]. 电工技术学报, 2022, 37(22): 5717-5727.
Fu Dongshan, Wu Kangyi, Zheng Ping, et al.Analysis of electromagnetic thrust characteristics of magnetic circuit complementary transverse flux switching linear motor[J]. Transactions of China Electrotechnical Society, 2022, 37(22): 5717-5727.
[17] 汪伟涛, 赵吉文, 宋俊材, 等. 双层反向倾斜线圈永磁同步直线电机的设计与优化[J]. 中国电机工程学报, 2020, 40(3): 980-989.
Wang Weitao, Zhao Jiwen, Song Juncai, et al.Design and optimization of double layer reverse dip coil permanent magnet synchronous linear motors[J]. Proceedings of the CSEE, 2020, 40(3): 980-989.
[18] Chen Zhi, Kong Wubin, Zhang Xuhui, et al.Novel virtual winding current controller for suppression of linear permanent magnet machine electromagnetic thrust ripple[J]. IEEE Transactions on Industrial Electronics, 2023, 70(10): 9835-9846.
[19] Chen Zhi, Kong Wubin, Shi Chaojie, et al.A novel negative-sequence current injection method for reducing LVPMM electromagnetic thrust ripple considering static longitudinal end effect[J]. IEEE Transactions on Industrial Electronics, 2021, 68(2): 1108-1117.
[20] 王秀和, 杨玉波, 朱常青, 等. 永磁同步电机: 基础理论、共性问题与电磁设计[M]. 北京: 机械工业出版社, 2022.