Analytical prediction of cogging torque for interior permanent magnet synchronous motors

Dong Kuk Lim; Sang Yong Jung; Hyun Kyo Jung; Jong Suk Ro

doi:10.3233/JAE-9170094

Analytical prediction of cogging torque for interior permanent magnet synchronous motors

Dong Kuk Lim
, Sang Yong Jung
, Hyun Kyo Jung
, Jong Suk Ro

Department of Electronic and Electrical Engineering

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

6 Scopus citations

Abstract

The cogging torque calculation of interior permanent magnet synchronous motors (IPMSMs) has only been conducted by the finite element method (FEM) due to their complexities. However, FEM analysis requires considerable computational time during the design process. To deal with this problem, a new analytical method is proposed to calculate the cogging torque in IPMSMs. The radial and circumferential air-gap flux density for calculating the cogging torque utilizes the magnetic equivalent circuit model, conformal mapping method, and approximate equations of the magnet end. The validity of the proposed method was confirmed by comparing the results of the proposed method with those of FEM.

Original language	English
Pages (from-to)	625-635
Number of pages	11
Journal	International Journal of Applied Electromagnetics and Mechanics
Volume	55
Issue number	4
DOIs	https://doi.org/10.3233/JAE-9170094
State	Published - 2017

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SDG 7 Affordable and Clean Energy

Keywords

Analytic method
conformal mapping
interior permanent magnet synchronous motor
magnetic equivalent circuit

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10.3233/JAE-9170094

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title = "Analytical prediction of cogging torque for interior permanent magnet synchronous motors",

abstract = "The cogging torque calculation of interior permanent magnet synchronous motors (IPMSMs) has only been conducted by the finite element method (FEM) due to their complexities. However, FEM analysis requires considerable computational time during the design process. To deal with this problem, a new analytical method is proposed to calculate the cogging torque in IPMSMs. The radial and circumferential air-gap flux density for calculating the cogging torque utilizes the magnetic equivalent circuit model, conformal mapping method, and approximate equations of the magnet end. The validity of the proposed method was confirmed by comparing the results of the proposed method with those of FEM.",

keywords = "Analytic method, conformal mapping, interior permanent magnet synchronous motor, magnetic equivalent circuit",

author = "Lim, \{Dong Kuk\} and Jung, \{Sang Yong\} and Jung, \{Hyun Kyo\} and Ro, \{Jong Suk\}",

note = "Publisher Copyright: {\textcopyright} 2017 - IOS Press and the authors.",

year = "2017",

doi = "10.3233/JAE-9170094",

language = "English",

volume = "55",

pages = "625--635",

journal = "International Journal of Applied Electromagnetics and Mechanics",

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T1 - Analytical prediction of cogging torque for interior permanent magnet synchronous motors

AU - Lim, Dong Kuk

AU - Jung, Sang Yong

AU - Jung, Hyun Kyo

AU - Ro, Jong Suk

PY - 2017

Y1 - 2017

N2 - The cogging torque calculation of interior permanent magnet synchronous motors (IPMSMs) has only been conducted by the finite element method (FEM) due to their complexities. However, FEM analysis requires considerable computational time during the design process. To deal with this problem, a new analytical method is proposed to calculate the cogging torque in IPMSMs. The radial and circumferential air-gap flux density for calculating the cogging torque utilizes the magnetic equivalent circuit model, conformal mapping method, and approximate equations of the magnet end. The validity of the proposed method was confirmed by comparing the results of the proposed method with those of FEM.

AB - The cogging torque calculation of interior permanent magnet synchronous motors (IPMSMs) has only been conducted by the finite element method (FEM) due to their complexities. However, FEM analysis requires considerable computational time during the design process. To deal with this problem, a new analytical method is proposed to calculate the cogging torque in IPMSMs. The radial and circumferential air-gap flux density for calculating the cogging torque utilizes the magnetic equivalent circuit model, conformal mapping method, and approximate equations of the magnet end. The validity of the proposed method was confirmed by comparing the results of the proposed method with those of FEM.

KW - Analytic method

KW - conformal mapping

KW - interior permanent magnet synchronous motor

KW - magnetic equivalent circuit

UR - https://www.scopus.com/pages/publications/85037678994

U2 - 10.3233/JAE-9170094

DO - 10.3233/JAE-9170094

M3 - Article

AN - SCOPUS:85037678994

SN - 1383-5416

VL - 55

SP - 625

EP - 635

JO - International Journal of Applied Electromagnetics and Mechanics

JF - International Journal of Applied Electromagnetics and Mechanics

IS - 4

ER -

Analytical prediction of cogging torque for interior permanent magnet synchronous motors

Abstract

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Keywords

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