Calculation Model of Armature Reaction Magnetic Field of Interior Permanent Magnet Synchronous Motor with Segmented Skewed Poles

Yuansheng An; Conggan Ma; Nic Zhang; Yue Guo; Michele Degano; Chris Gerada; Feifei Bu; Xiangrui Yin; Qiongyao Li; Shengsen Zhou

doi:10.1109/TEC.2021.3123359

Calculation Model of Armature Reaction Magnetic Field of Interior Permanent Magnet Synchronous Motor with Segmented Skewed Poles

Yuansheng An, Conggan Ma, Nic Zhang, Yue Guo, Michele Degano, Chris Gerada, Feifei Bu, Xiangrui Yin, Qiongyao Li, Shengsen Zhou

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

19 Citations (Scopus)

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Abstract

In an interior permanent magnet synchronous motor (IPMSM) with segmented skewed poles, the armature reaction magnetic field (AR-MF) changes nonlinearly due to the saturation of the rotor magnetic barrier. Meanwhile, this varies under different excitation currents. As a result, it is difficult to be calculated by means of analytical methods. In this paper, the calculation model of AR-MF of IPMSM is first established by vector superposition method, without considering the saturation effect of rotor and the slotting effect of stator. In the second step, the virtual magnetic field of the rotor is introduced to quantitatively calculate the influence of local inhomogeneous saturation on the AR-MF. The latter is derived by combining both the subdomain method and equivalent magnetic circuit method. The complex relative permeance is also introduced to establish the AR-MF accounting for the stator slotting effect. To validate the AR-MF calculation method proposed, an 8-pole 48-slot IPMSM with segmented skewed poles is considered as a case study, showing a comparison by both with finite element (FE) results and the electromagnetic torque measured on a test bench. The model proposed in this paper shows high accuracy and fast computation with respect to FE analysis.

Original language	English
Pages (from-to)	1115-1123
Number of pages	9
Journal	IEEE Transactions on Energy Conversion
Volume	37
Issue number	2
Early online date	27 Oct 2021
DOIs	https://doi.org/10.1109/TEC.2021.3123359
Publication status	Published - Jun 2022

Bibliographical note

© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Keywords

Air gaps
armature reaction magnetic field
Interior permanent magnet synchronous motor
local inhomogeneous saturation
Magnetic circuits
Magnetic cores
Magnetic fields
Magnetic flux
Rotors
Saturation magnetization
segmented skewed poles
virtual magnetic field of rotor magnetic barrier

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1109/TEC.2021.3123359

An_et_al_Calculation Model Armature ReactionAccepted author manuscript, 1.24 MB

Cite this

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title = "Calculation Model of Armature Reaction Magnetic Field of Interior Permanent Magnet Synchronous Motor with Segmented Skewed Poles",

abstract = "In an interior permanent magnet synchronous motor (IPMSM) with segmented skewed poles, the armature reaction magnetic field (AR-MF) changes nonlinearly due to the saturation of the rotor magnetic barrier. Meanwhile, this varies under different excitation currents. As a result, it is difficult to be calculated by means of analytical methods. In this paper, the calculation model of AR-MF of IPMSM is first established by vector superposition method, without considering the saturation effect of rotor and the slotting effect of stator. In the second step, the virtual magnetic field of the rotor is introduced to quantitatively calculate the influence of local inhomogeneous saturation on the AR-MF. The latter is derived by combining both the subdomain method and equivalent magnetic circuit method. The complex relative permeance is also introduced to establish the AR-MF accounting for the stator slotting effect. To validate the AR-MF calculation method proposed, an 8-pole 48-slot IPMSM with segmented skewed poles is considered as a case study, showing a comparison by both with finite element (FE) results and the electromagnetic torque measured on a test bench. The model proposed in this paper shows high accuracy and fast computation with respect to FE analysis.",

keywords = "Air gaps, armature reaction magnetic field, Interior permanent magnet synchronous motor, local inhomogeneous saturation, Magnetic circuits, Magnetic cores, Magnetic fields, Magnetic flux, Rotors, Saturation magnetization, segmented skewed poles, virtual magnetic field of rotor magnetic barrier",

author = "Yuansheng An and Conggan Ma and Nic Zhang and Yue Guo and Michele Degano and Chris Gerada and Feifei Bu and Xiangrui Yin and Qiongyao Li and Shengsen Zhou",

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AU - An, Yuansheng

AU - Ma, Conggan

AU - Zhang, Nic

AU - Guo, Yue

AU - Degano, Michele

AU - Gerada, Chris

AU - Bu, Feifei

AU - Yin, Xiangrui

AU - Li, Qiongyao

AU - Zhou, Shengsen

N1 - © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2022/6

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N2 - In an interior permanent magnet synchronous motor (IPMSM) with segmented skewed poles, the armature reaction magnetic field (AR-MF) changes nonlinearly due to the saturation of the rotor magnetic barrier. Meanwhile, this varies under different excitation currents. As a result, it is difficult to be calculated by means of analytical methods. In this paper, the calculation model of AR-MF of IPMSM is first established by vector superposition method, without considering the saturation effect of rotor and the slotting effect of stator. In the second step, the virtual magnetic field of the rotor is introduced to quantitatively calculate the influence of local inhomogeneous saturation on the AR-MF. The latter is derived by combining both the subdomain method and equivalent magnetic circuit method. The complex relative permeance is also introduced to establish the AR-MF accounting for the stator slotting effect. To validate the AR-MF calculation method proposed, an 8-pole 48-slot IPMSM with segmented skewed poles is considered as a case study, showing a comparison by both with finite element (FE) results and the electromagnetic torque measured on a test bench. The model proposed in this paper shows high accuracy and fast computation with respect to FE analysis.

AB - In an interior permanent magnet synchronous motor (IPMSM) with segmented skewed poles, the armature reaction magnetic field (AR-MF) changes nonlinearly due to the saturation of the rotor magnetic barrier. Meanwhile, this varies under different excitation currents. As a result, it is difficult to be calculated by means of analytical methods. In this paper, the calculation model of AR-MF of IPMSM is first established by vector superposition method, without considering the saturation effect of rotor and the slotting effect of stator. In the second step, the virtual magnetic field of the rotor is introduced to quantitatively calculate the influence of local inhomogeneous saturation on the AR-MF. The latter is derived by combining both the subdomain method and equivalent magnetic circuit method. The complex relative permeance is also introduced to establish the AR-MF accounting for the stator slotting effect. To validate the AR-MF calculation method proposed, an 8-pole 48-slot IPMSM with segmented skewed poles is considered as a case study, showing a comparison by both with finite element (FE) results and the electromagnetic torque measured on a test bench. The model proposed in this paper shows high accuracy and fast computation with respect to FE analysis.

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KW - local inhomogeneous saturation

KW - Magnetic circuits

KW - Magnetic cores

KW - Magnetic fields

KW - Magnetic flux

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ER -

Calculation Model of Armature Reaction Magnetic Field of Interior Permanent Magnet Synchronous Motor with Segmented Skewed Poles

Abstract

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