Analytical Calculation of Magnetic Field and Constant Torque Range Analysis of Slotted Limited-angle Torque Motor With Identical Pole-slot Number

Guodong Yu; Yongxiang Xu; Jibin Zou; Lijun Xiao; Jiubin Tan

doi:10.13334/j.0258-8013.pcsee.200436

Analytical Calculation of Magnetic Field and Constant Torque Range Analysis of Slotted Limited-angle Torque Motor With Identical Pole-slot Number

School of Electrical Engineering and Automation, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Constant torque range (CTR) is an important design parameter for limited-angle torque motors (LATMs), which cannot be obtained for permanent magnet (PM) slotted LATM with the configuration of poles number equal to slots number in the preliminary design. This paper presented a calculation method based on magnetic field model for obtaining the CTR of this LATM type, which provided a technical basis for the LATM optimal design. This paper firstly simplified the slotted LATM model, and then established an analytical magnetic model of LATM with 1 pole-1 slot unit on the basis of periodic boundary condition. The air gap magnetic field waveforms of 4-pole 4-slot and 6-pole 6-slot motors calculated by the analytical model are compared with the finite element method to verify its correctness. Based on this, a CTR calculation method was proposed, and the effects of the number of poles and slots on the CTR were analyzed. Finally, the correctness of the proposed method was verified by the FEM and experiment.

Translated title of the contribution	等极槽式有限转角力矩电机磁场解析计算与恒转矩区间分析
Original language	English
Pages (from-to)	2538-2546
Number of pages	9
Journal	Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
Volume	41
Issue number	7
DOIs	https://doi.org/10.13334/j.0258-8013.pcsee.200436
State	Published - 5 Apr 2021
Externally published	Yes

Keywords

Constant torque range
Finite element analysis
Limited-angle torque motor

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10.13334/j.0258-8013.pcsee.200436

Cite this

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title = "Analytical Calculation of Magnetic Field and Constant Torque Range Analysis of Slotted Limited-angle Torque Motor With Identical Pole-slot Number",

abstract = "Constant torque range (CTR) is an important design parameter for limited-angle torque motors (LATMs), which cannot be obtained for permanent magnet (PM) slotted LATM with the configuration of poles number equal to slots number in the preliminary design. This paper presented a calculation method based on magnetic field model for obtaining the CTR of this LATM type, which provided a technical basis for the LATM optimal design. This paper firstly simplified the slotted LATM model, and then established an analytical magnetic model of LATM with 1 pole-1 slot unit on the basis of periodic boundary condition. The air gap magnetic field waveforms of 4-pole 4-slot and 6-pole 6-slot motors calculated by the analytical model are compared with the finite element method to verify its correctness. Based on this, a CTR calculation method was proposed, and the effects of the number of poles and slots on the CTR were analyzed. Finally, the correctness of the proposed method was verified by the FEM and experiment.",

keywords = "Constant torque range, Finite element analysis, Limited-angle torque motor",

author = "Guodong Yu and Yongxiang Xu and Jibin Zou and Lijun Xiao and Jiubin Tan",

note = "Publisher Copyright: {\textcopyright} 2021 Chin. Soc. for Elec. Eng.",

year = "2021",

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doi = "10.13334/j.0258-8013.pcsee.200436",

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Analytical Calculation of Magnetic Field and Constant Torque Range Analysis of Slotted Limited-angle Torque Motor With Identical Pole-slot Number. / Yu, Guodong ; Xu, Yongxiang ; Zou, Jibin et al.
In: Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, Vol. 41, No. 7, 05.04.2021, p. 2538-2546.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Analytical Calculation of Magnetic Field and Constant Torque Range Analysis of Slotted Limited-angle Torque Motor With Identical Pole-slot Number

AU - Yu, Guodong

AU - Xu, Yongxiang

AU - Zou, Jibin

AU - Xiao, Lijun

AU - Tan, Jiubin

PY - 2021/4/5

Y1 - 2021/4/5

N2 - Constant torque range (CTR) is an important design parameter for limited-angle torque motors (LATMs), which cannot be obtained for permanent magnet (PM) slotted LATM with the configuration of poles number equal to slots number in the preliminary design. This paper presented a calculation method based on magnetic field model for obtaining the CTR of this LATM type, which provided a technical basis for the LATM optimal design. This paper firstly simplified the slotted LATM model, and then established an analytical magnetic model of LATM with 1 pole-1 slot unit on the basis of periodic boundary condition. The air gap magnetic field waveforms of 4-pole 4-slot and 6-pole 6-slot motors calculated by the analytical model are compared with the finite element method to verify its correctness. Based on this, a CTR calculation method was proposed, and the effects of the number of poles and slots on the CTR were analyzed. Finally, the correctness of the proposed method was verified by the FEM and experiment.

AB - Constant torque range (CTR) is an important design parameter for limited-angle torque motors (LATMs), which cannot be obtained for permanent magnet (PM) slotted LATM with the configuration of poles number equal to slots number in the preliminary design. This paper presented a calculation method based on magnetic field model for obtaining the CTR of this LATM type, which provided a technical basis for the LATM optimal design. This paper firstly simplified the slotted LATM model, and then established an analytical magnetic model of LATM with 1 pole-1 slot unit on the basis of periodic boundary condition. The air gap magnetic field waveforms of 4-pole 4-slot and 6-pole 6-slot motors calculated by the analytical model are compared with the finite element method to verify its correctness. Based on this, a CTR calculation method was proposed, and the effects of the number of poles and slots on the CTR were analyzed. Finally, the correctness of the proposed method was verified by the FEM and experiment.

KW - Constant torque range

KW - Finite element analysis

KW - Limited-angle torque motor

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U2 - 10.13334/j.0258-8013.pcsee.200436

DO - 10.13334/j.0258-8013.pcsee.200436

M3 - 文章

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SN - 0258-8013

VL - 41

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JO - Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering

JF - Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering

IS - 7

ER -

Analytical Calculation of Magnetic Field and Constant Torque Range Analysis of Slotted Limited-angle Torque Motor With Identical Pole-slot Number

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