Design optimization of a spoke-type axial-flux PM machine for in-wheel drive operation

Axial flux machines have huge potential in direct-drive operations such as In-wheel drive operation due to the characteristics of high torque density and short axial length. However, the design optimization of axial flux machines was limited by the lack of accuracy magnetic circuit model. In this pa...

Full description

Bibliographic Details
Main Authors: Shi, Zhou, Sun, Xiaodong, Yang, Zebin, Cai, Yingfeng, Lei, Gang, Zhu, Jianguo, Lee, Christopher Ho Tin
Other Authors: School of Electrical and Electronic Engineering
Format: Journal Article
Language:English
Published: 2024
Subjects:
Online Access:https://hdl.handle.net/10356/178430
_version_ 1826125779054886912
author Shi, Zhou
Sun, Xiaodong
Yang, Zebin
Cai, Yingfeng
Lei, Gang
Zhu, Jianguo
Lee, Christopher Ho Tin
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Shi, Zhou
Sun, Xiaodong
Yang, Zebin
Cai, Yingfeng
Lei, Gang
Zhu, Jianguo
Lee, Christopher Ho Tin
author_sort Shi, Zhou
collection NTU
description Axial flux machines have huge potential in direct-drive operations such as In-wheel drive operation due to the characteristics of high torque density and short axial length. However, the design optimization of axial flux machines was limited by the lack of accuracy magnetic circuit model. In this paper, a spoke-type axial-flux permanent magnet synchronous machine (Spoke-type AFPMSM) is designed and an efficient optimization method for axial flux structure is proposed. The proposed optimization method improves the efficiency of the optimization design by using a 2-D equivalent finite element model and multilevel optimization strategy. The parameters without end effects will be optimized by a 2-D equivalent model and the parameters with end effects will be optimized by a 3-D model. In this way, the number of finite element nodes required for optimization calculation can be minimized. Besides, the multilevel strategy and response surface optimization method are also adopted to further improve the efficiency of the optimization. The proposed method improved the cost, efficiency, and torque of the AFPMSM significantly, and some other constraints are also considered in the optimization progress. Finally, experimental results based on a prototype are provided to validate the performance of the proposed AFPMSM. The proposed method can be applied for other design optimization of axial flux operations.
first_indexed 2024-10-01T06:42:14Z
format Journal Article
id ntu-10356/178430
institution Nanyang Technological University
language English
last_indexed 2024-10-01T06:42:14Z
publishDate 2024
record_format dspace
spelling ntu-10356/1784302024-06-21T15:40:39Z Design optimization of a spoke-type axial-flux PM machine for in-wheel drive operation Shi, Zhou Sun, Xiaodong Yang, Zebin Cai, Yingfeng Lei, Gang Zhu, Jianguo Lee, Christopher Ho Tin School of Electrical and Electronic Engineering Engineering Axial flux permanent magnet synchronous machine Finite-element analysis Axial flux machines have huge potential in direct-drive operations such as In-wheel drive operation due to the characteristics of high torque density and short axial length. However, the design optimization of axial flux machines was limited by the lack of accuracy magnetic circuit model. In this paper, a spoke-type axial-flux permanent magnet synchronous machine (Spoke-type AFPMSM) is designed and an efficient optimization method for axial flux structure is proposed. The proposed optimization method improves the efficiency of the optimization design by using a 2-D equivalent finite element model and multilevel optimization strategy. The parameters without end effects will be optimized by a 2-D equivalent model and the parameters with end effects will be optimized by a 3-D model. In this way, the number of finite element nodes required for optimization calculation can be minimized. Besides, the multilevel strategy and response surface optimization method are also adopted to further improve the efficiency of the optimization. The proposed method improved the cost, efficiency, and torque of the AFPMSM significantly, and some other constraints are also considered in the optimization progress. Finally, experimental results based on a prototype are provided to validate the performance of the proposed AFPMSM. The proposed method can be applied for other design optimization of axial flux operations. Submitted/Accepted version This work was supported in part by the National Natural Science Foundation of China under Grant 52225212, Grant U20A20333, Grant U20A20331, and Grant 51875255; in part by the Key Research and Development Program of Jiangsu Province under Grant BE2020083-3 and Grant BE2019010-2; and in part by the Changzhou Science and Technology Support Program (Industry) under Project CE20220007. 2024-06-19T07:59:46Z 2024-06-19T07:59:46Z 2023 Journal Article Shi, Z., Sun, X., Yang, Z., Cai, Y., Lei, G., Zhu, J. & Lee, C. H. T. (2023). Design optimization of a spoke-type axial-flux PM machine for in-wheel drive operation. IEEE Transactions On Transportation Electrification, 10(2), 3770-3781. https://dx.doi.org/10.1109/TTE.2023.3310738 2332-7782 https://hdl.handle.net/10356/178430 10.1109/TTE.2023.3310738 2-s2.0-85170535748 2 10 3770 3781 en IEEE Transactions on Transportation Electrification © 2023 IEEE. All rights reserved. This article may be downloaded for personal use only. Any other use requires prior permission of the copyright holder. The Version of Record is available online at http://doi.org/10.1109/TTE.2023.3310738. application/pdf
spellingShingle Engineering
Axial flux permanent magnet synchronous machine
Finite-element analysis
Shi, Zhou
Sun, Xiaodong
Yang, Zebin
Cai, Yingfeng
Lei, Gang
Zhu, Jianguo
Lee, Christopher Ho Tin
Design optimization of a spoke-type axial-flux PM machine for in-wheel drive operation
title Design optimization of a spoke-type axial-flux PM machine for in-wheel drive operation
title_full Design optimization of a spoke-type axial-flux PM machine for in-wheel drive operation
title_fullStr Design optimization of a spoke-type axial-flux PM machine for in-wheel drive operation
title_full_unstemmed Design optimization of a spoke-type axial-flux PM machine for in-wheel drive operation
title_short Design optimization of a spoke-type axial-flux PM machine for in-wheel drive operation
title_sort design optimization of a spoke type axial flux pm machine for in wheel drive operation
topic Engineering
Axial flux permanent magnet synchronous machine
Finite-element analysis
url https://hdl.handle.net/10356/178430
work_keys_str_mv AT shizhou designoptimizationofaspoketypeaxialfluxpmmachineforinwheeldriveoperation
AT sunxiaodong designoptimizationofaspoketypeaxialfluxpmmachineforinwheeldriveoperation
AT yangzebin designoptimizationofaspoketypeaxialfluxpmmachineforinwheeldriveoperation
AT caiyingfeng designoptimizationofaspoketypeaxialfluxpmmachineforinwheeldriveoperation
AT leigang designoptimizationofaspoketypeaxialfluxpmmachineforinwheeldriveoperation
AT zhujianguo designoptimizationofaspoketypeaxialfluxpmmachineforinwheeldriveoperation
AT leechristopherhotin designoptimizationofaspoketypeaxialfluxpmmachineforinwheeldriveoperation