Analysis of a spoke‐type ferrite PM motor with assisted poles based on equivalent magnetic network with hybrid cross‐shaped mesh elements

Abstract This article proposes an equivalent magnetic network (EMN) model to improve the accuracy of electromagnetic analysis, where a modular modelling of hybrid cross‐shaped mesh (CS‐M) elements is introduced. By applying hybrid CS‐M elements, the modelling of air gap and its surrounding regions i...

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Main Authors: Hao Ke, Zhengmeng Liu, Qian Chen, Guohai Liu, Gaohong Xu
Format: Article
Language:English
Published: Wiley 2023-04-01
Series:IET Electric Power Applications
Subjects:
Online Access:https://doi.org/10.1049/elp2.12283
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author Hao Ke
Zhengmeng Liu
Qian Chen
Guohai Liu
Gaohong Xu
author_facet Hao Ke
Zhengmeng Liu
Qian Chen
Guohai Liu
Gaohong Xu
author_sort Hao Ke
collection DOAJ
description Abstract This article proposes an equivalent magnetic network (EMN) model to improve the accuracy of electromagnetic analysis, where a modular modelling of hybrid cross‐shaped mesh (CS‐M) elements is introduced. By applying hybrid CS‐M elements, the modelling of air gap and its surrounding regions is regulated into an identical width. As a result, the relative motion of the motor is simpler to simulate by changing the nodal connection without involving the non‐linear permeance. The airgap flux density is solved more accurately than the regular CS‐M elements as well. A 12‐slot/10‐pole ferrite permanent magnet (FPM) motor with assisted poles of unequal pole‐arc ratios is selected as an example to be built with the proposed EMN model. After solving the EMN model, the effectiveness and accuracy of the proposed EMN model are verified by comparing it with the FEA model and experiments. Additionally, based on the frozen permeability (FP) method, transient torque components can be separated accurately with a transient torque solution related to virtual work principle (VWP) for the EMN model.
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spelling doaj.art-c1894148d43841ae9df6e0e31330b4712023-04-14T08:15:50ZengWileyIET Electric Power Applications1751-86601751-86792023-04-0117447448610.1049/elp2.12283Analysis of a spoke‐type ferrite PM motor with assisted poles based on equivalent magnetic network with hybrid cross‐shaped mesh elementsHao Ke0Zhengmeng Liu1Qian Chen2Guohai Liu3Gaohong Xu4School of Electrical and Information Engineering Jiangsu University Zhenjiang ChinaSchool of Electrical and Information Engineering Jiangsu University Zhenjiang ChinaSchool of Electrical and Information Engineering Jiangsu University Zhenjiang ChinaSchool of Electrical and Information Engineering Jiangsu University Zhenjiang ChinaSchool of Electrical and Information Engineering Jiangsu University Zhenjiang ChinaAbstract This article proposes an equivalent magnetic network (EMN) model to improve the accuracy of electromagnetic analysis, where a modular modelling of hybrid cross‐shaped mesh (CS‐M) elements is introduced. By applying hybrid CS‐M elements, the modelling of air gap and its surrounding regions is regulated into an identical width. As a result, the relative motion of the motor is simpler to simulate by changing the nodal connection without involving the non‐linear permeance. The airgap flux density is solved more accurately than the regular CS‐M elements as well. A 12‐slot/10‐pole ferrite permanent magnet (FPM) motor with assisted poles of unequal pole‐arc ratios is selected as an example to be built with the proposed EMN model. After solving the EMN model, the effectiveness and accuracy of the proposed EMN model are verified by comparing it with the FEA model and experiments. Additionally, based on the frozen permeability (FP) method, transient torque components can be separated accurately with a transient torque solution related to virtual work principle (VWP) for the EMN model.https://doi.org/10.1049/elp2.12283magnetic circuitspermanent magnet machines
spellingShingle Hao Ke
Zhengmeng Liu
Qian Chen
Guohai Liu
Gaohong Xu
Analysis of a spoke‐type ferrite PM motor with assisted poles based on equivalent magnetic network with hybrid cross‐shaped mesh elements
IET Electric Power Applications
magnetic circuits
permanent magnet machines
title Analysis of a spoke‐type ferrite PM motor with assisted poles based on equivalent magnetic network with hybrid cross‐shaped mesh elements
title_full Analysis of a spoke‐type ferrite PM motor with assisted poles based on equivalent magnetic network with hybrid cross‐shaped mesh elements
title_fullStr Analysis of a spoke‐type ferrite PM motor with assisted poles based on equivalent magnetic network with hybrid cross‐shaped mesh elements
title_full_unstemmed Analysis of a spoke‐type ferrite PM motor with assisted poles based on equivalent magnetic network with hybrid cross‐shaped mesh elements
title_short Analysis of a spoke‐type ferrite PM motor with assisted poles based on equivalent magnetic network with hybrid cross‐shaped mesh elements
title_sort analysis of a spoke type ferrite pm motor with assisted poles based on equivalent magnetic network with hybrid cross shaped mesh elements
topic magnetic circuits
permanent magnet machines
url https://doi.org/10.1049/elp2.12283
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AT zhengmengliu analysisofaspoketypeferritepmmotorwithassistedpolesbasedonequivalentmagneticnetworkwithhybridcrossshapedmeshelements
AT qianchen analysisofaspoketypeferritepmmotorwithassistedpolesbasedonequivalentmagneticnetworkwithhybridcrossshapedmeshelements
AT guohailiu analysisofaspoketypeferritepmmotorwithassistedpolesbasedonequivalentmagneticnetworkwithhybridcrossshapedmeshelements
AT gaohongxu analysisofaspoketypeferritepmmotorwithassistedpolesbasedonequivalentmagneticnetworkwithhybridcrossshapedmeshelements