V型游标永磁电机功率因数内在机理及其提升方法

doi:10.19595/j.cnki.1000-6753.tces.220991

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (4663 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In recent years, Vernier permanent magnet (VPM) machines have attracted increasing attention due to the advantages of high power density at low speed in the research field of electric vehicles (EVs), aerospace actuation, and ship propulsion. However, compared with traditional PM machines, VPM machines generally suffer from a low power factor due to increased PM pole number and flux leakage. Various methods have been proposed from the perspective of machine design to enhance the power factor of VPM machines. However, current research often focuses on the design and optimization of VPM, while the power factor improvement from the theory perspective needs to be addressed. Consequently, in this paper, the power factor mechanism of the magnetic field modulation machine is investigated based on the principle of magnetic field modulation, and a power factor improvement method is proposed for VPM.
Taking the V-type Vernier permanent magnet machine (VTVPM) as an example, the inherent mechanism of the power factor of the VTVPM is theoretically studied, and the formulas are derived from the permanent magnet flux linkage layer and synchronous inductance layer using the hierarchical optimization strategy. Firstly, according to the classical power factor formula of the machine, the power factor of the machine is mainly related to the permanent magnet flux linkage and synchronous inductance. Therefore, this paper, from the perspective of optimizing the permanent magnet flux linkage and synchronous inductance, taking harmonics as a bridge, derives and establishes the internal relationship between the permanent magnet flux linkage and synchronous inductance with the design parameters.
By the scanning analysis of the parameters θ_tr and θ_v of the permanent magnet flux layer motor, it can be concluded that θ_tr and θ_v obtain extreme values at 1.5 ° and 56 °, which is the optimal design of the VTVPM motor, and the amplitude of the fundamental wave of the permanent magnet flux linkage is increased from 135.4 mWb to 149.2 mWb. The synchronous inductance layer combines the sensitivity analysis and response surface methods to reduce the synchronous inductance from 11.1 mH to 9.59 mH. Finally, the power factor is increased from 0.54 to 0.67. In addition, the fundamental amplitude of the back EMF is increased from 65 V to 97 V, and the optimized machine load torque is close to 76.94 N·m, increased by 18.07 %. Moreover, the torque ripple is reduced from 2.60 % to 1.73 %. The simulation results verify the feasibility of the optimization design method.
Based on the study of power factor production mechanism of the field modulated machine, this paper presents an optimal design method for the power factor of the VPM machine. The proposed design method adopts hierarchical optimization to theoretically deduce and optimize the permanent magnet flux linkage and synchronous inductor layers, respectively. The power factor and other electromagnetic performance of the machine before and after optimization are compared. Finally, the prototype machine is built, and the basic experiments are carried out. Both the theoretical analysis and experimental results verify the effectiveness and rationality of the proposed optimization design method.

Key words： Vernier permanent magnet (VPM) machine power factor permanent magnet flux linkage synchronous inductance optimization design

Received: 31 May 2022

PACS:

TM351

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Zhou Jianrong
	Fan Deyang
	Xiang Zixuan
	Jiang Min
	Zhu Xiaoyong

Cite this article:

Zhou Jianrong,Fan Deyang,Xiang Zixuan等. Production Mechanism of Power Factor of V-Type Vernier Permanent Magnet Machine and Improvement Method[J]. Transactions of China Electrotechnical Society, 2023, 38(14): 3789-3799.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.220991 OR https://dgjsxb.ces-transaction.com/EN/Y2023/V38/I14/3789

[1] Luo Jun, Kou Baoquan, Yang Xiaobao, et al.Develop- ment, design, and analysis of a dual-consequent-pole transverse flux linear machine for direct-drive appli- cations[J]. IEEE Transactions on Industrial Electro- nics, 2021, 68(7): 6097-6108.
[2] 赵士豪, 陈进华, 张驰, 等. 不均匀气隙表贴式永磁同步电机磁场解析计算[J]. 电工技术学报, 2022, 37(14): 3502-3513.
Zhao Shihao, Chen Jinhua, Zhang Chi, et al.Analytical calculation of magnetic field of permanent magnet synchronous motor with uneven air gap structure[J]. Transactions of China Electrotechnical Society, 2022, 37(14): 3502-3513.
[3] 黄海林, 李大伟, 曲荣海, 等. 磁齿轮复合永磁电机拓扑及应用综述[J]. 电工技术学报, 2022, 37(6): 1381-1397.
Huang Hailin, Li Dawei, Qu Ronghai, et al.A review of magnetic geared machines: topologies and appli- cations[J]. Transactions of China Electrotechnical Society, 2022, 37(6): 1381-1397.
[4] 高锋阳, 齐晓东, 李晓峰, 等. 不等宽不等厚Halbach部分分段永磁同步电机电磁性能解析计算与优化分析[J]. 电工技术学报, 2022, 37(6): 1398-1414.
Gao Fengyang, Qi Xiaodong, Li Xiaofeng, et al.Analytical calculation and optimization analysis of electromagnetic performance of Halbach partially- segmented permanent magnet synchronous motors with unequal width and thickness[J]. Transactions of China Electrotechnical Society, 2022, 37(6): 1398-1414.
[5] Wang Yubin, Feng Qi, Li Xianglin, et al.Design, analysis, and experimental test of a segmented-rotor high-temperature superconducting flux-switching generator with stationary seal[J]. IEEE Transactions on Industrial Electronics, 2018, 65(11): 9047-9055.
[6] 石玉君, 程子活, 蹇林旎. 两种典型的场调制型永磁电机的对比分析[J]. 电工技术学报, 2021, 36(1): 120-130.
Shi Yujun, Cheng Zihuo, Jian Linni.Comparative analysis of two typical field modulated permanent- magnet machines[J]. Transactions of China Electro- technical Society, 2021, 36(1): 120-130.
[7] Zhu Xiaoyong, Jiang Min, Xiang Zixuan, et al.Design and optimization of a flux-modulated per- manent magnet motor based on an airgap-harmonic- orientated design methodology[J]. IEEE Transactions on Industrial Electronics, 2020, 67(7): 5337-5348.
[8] Lin Qifang, Niu Shuangxia, Fu W N.Design and optimization of a dual-permanent-magnet vernier machine with a novel optimization model[J]. IEEE Transactions on Magnetics, 2020, 56(3): 1-5.
[9] Chen Yiqiang, Zhu Xiaoyong, Quan Li, et al.A V-shaped PM vernier motor with enhanced flux- modulated effect and low torque ripple[J]. IEEE Transactions on Magnetics, 2018, 54(11): 1-4.
[10] Liu Yue, Li H Y, Zhu Z Q.A high-power factor vernier machine with coil pitch of two slot pitches[J]. IEEE Transactions on Magnetics, 2018, 54(11): 1-5.
[11] Du Yi, Xiao Feng, Hua Wei, et al.Comparison of flux-switching PM motors with different winding configurations using magnetic gearing principle[J]. IEEE Transactions on Magnetics, 2016, 52(5): 1-8.
[12] Fan Deyang, Quan Li, Zhu Xiaoyong, et al.Airgap- harmonic-based multilevel design and optimization of a double-stator flux-modulated permanent-magnet motor[J]. IEEE Transactions on Industrial Electronics, 2021, 68(11): 10534-10545.
[13] Yu Zixiang, Kong Wubin, Li Dawei, et al.Power factor analysis and maximum power factor control strategy for six-phase DC-biased vernier reluctance machines[J]. IEEE Transactions on Industry Appli- cations, 2019, 55(5): 4643-4652.
[14] Xu Liang, Zhao Wenxiang, Liu Guohai, et al.Design optimization of a spoke-type permanent-magnet vernier machine for torque density and power factor improvement[J]. IEEE Transactions on Vehicular Technology, 2019, 68(4): 3446-3456.
[15] 阙鸿杰, 全力, 张丽, 等. 基于自适应滤波器在线解耦的磁场增强型永磁电机无位置传感器控制[J]. 电工技术学报, 2022, 37(2): 344-354.
Que Hongjie, Quan Li, Zhang Li, et al.Sensorless control of flux-intensifying permanent magnet syn- chronous motor based on adaptive Notch filter online decoupling[J]. Transactions of China Electrotechnical Society, 2022, 37(2): 344-354.
[16] Zhu Xiaoyong, Fan Deyang, Xiang Zixuan, et al.Systematic multi-level optimization design and dynamic control of less-rare-earth hybrid permanent magnet motor for all-climatic electric vehicles[J]. Applied Energy, 2019, 253: 113549.
[17] Wu Dingying, Xiang Zixuan, Zhu Xiaoyong, et al.Optimization design of power factor for an in-wheel vernier PM machine from the perspective of air-gap harmonic modulation[J]. IEEE Transactions on Indu- strial Electronics, 2021, 68(10): 9265-9276.
[18] Zhu Z Q, Liu Yue.Analysis of air-gap field modulation and magnetic gearing effect in fractional- slot concentrated-winding permanent-magnet synchronous machines[J]. IEEE Transactions on Industrial Elec- tronics, 2018, 65(5): 3688-3698.
[19] Silva C A, Bidaud F, Herbet P, et al.Power factor calculation by the finite element method[J]. IEEE Transactions on Magnetics, 2010, 46(8): 3002-3005.