Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles

This paper investigated a 12-slot/11-pole flux switching permanent magnet (FSPM) machine used for electric vehicles (EVs). Five novel rotor teeth shapes are proposed and researched to reduce the cogging torque and torque ripple of the FSPM machine. These rotor teeth shapes are notched teeth, stepped...

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Main Authors: Jing Zhao, Yashuang Yan, Bin Li, Xiangdong Liu, Zhen Chen
Format: Article
Language:English
Published: MDPI AG 2014-12-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/7/12/8056
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author Jing Zhao
Yashuang Yan
Bin Li
Xiangdong Liu
Zhen Chen
author_facet Jing Zhao
Yashuang Yan
Bin Li
Xiangdong Liu
Zhen Chen
author_sort Jing Zhao
collection DOAJ
description This paper investigated a 12-slot/11-pole flux switching permanent magnet (FSPM) machine used for electric vehicles (EVs). Five novel rotor teeth shapes are proposed and researched to reduce the cogging torque and torque ripple of the FSPM machine. These rotor teeth shapes are notched teeth, stepped teeth, eccentric teeth, combination of notched and stepped teeth, and combination of notched and eccentric teeth. They are applied on the rotor and optimized, respectively. The influences of different rotor teeth shapes on cogging torque, torque ripple and electromagnetic torque are analyzed by the 2-D finite-element method (FEM). Then, the performance of FSPMs with different rotor teeth shapes are compared and evaluated comprehensively from the points of view of cogging torque, torque ripple, electromagnetic torque, flux linkage, back electromotive force (EMF), and so on. The results show that the presented rotor teeth shapes, especially the combination of stepped and notched teeth, can greatly reduce the cogging torque and torque ripple with only slight changes in the average electromagnetic torque.
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spelling doaj.art-1618744a58b24830aa2aa6e08e78318f2022-12-22T02:55:08ZengMDPI AGEnergies1996-10732014-12-017128056807510.3390/en7128056en7128056Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric VehiclesJing Zhao0Yashuang Yan1Bin Li2Xiangdong Liu3Zhen Chen4School of Automation, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Automation, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Automation, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Automation, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Automation, Beijing Institute of Technology, Beijing 100081, ChinaThis paper investigated a 12-slot/11-pole flux switching permanent magnet (FSPM) machine used for electric vehicles (EVs). Five novel rotor teeth shapes are proposed and researched to reduce the cogging torque and torque ripple of the FSPM machine. These rotor teeth shapes are notched teeth, stepped teeth, eccentric teeth, combination of notched and stepped teeth, and combination of notched and eccentric teeth. They are applied on the rotor and optimized, respectively. The influences of different rotor teeth shapes on cogging torque, torque ripple and electromagnetic torque are analyzed by the 2-D finite-element method (FEM). Then, the performance of FSPMs with different rotor teeth shapes are compared and evaluated comprehensively from the points of view of cogging torque, torque ripple, electromagnetic torque, flux linkage, back electromotive force (EMF), and so on. The results show that the presented rotor teeth shapes, especially the combination of stepped and notched teeth, can greatly reduce the cogging torque and torque ripple with only slight changes in the average electromagnetic torque.http://www.mdpi.com/1996-1073/7/12/8056flux switching permanent magnet (FSPM) machinecogging torquetorque ripplenotched teethstepped teetheccentric teeth
spellingShingle Jing Zhao
Yashuang Yan
Bin Li
Xiangdong Liu
Zhen Chen
Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles
Energies
flux switching permanent magnet (FSPM) machine
cogging torque
torque ripple
notched teeth
stepped teeth
eccentric teeth
title Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles
title_full Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles
title_fullStr Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles
title_full_unstemmed Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles
title_short Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles
title_sort influence of different rotor teeth shapes on the performance of flux switching permanent magnet machines used for electric vehicles
topic flux switching permanent magnet (FSPM) machine
cogging torque
torque ripple
notched teeth
stepped teeth
eccentric teeth
url http://www.mdpi.com/1996-1073/7/12/8056
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AT binli influenceofdifferentrotorteethshapesontheperformanceoffluxswitchingpermanentmagnetmachinesusedforelectricvehicles
AT xiangdongliu influenceofdifferentrotorteethshapesontheperformanceoffluxswitchingpermanentmagnetmachinesusedforelectricvehicles
AT zhenchen influenceofdifferentrotorteethshapesontheperformanceoffluxswitchingpermanentmagnetmachinesusedforelectricvehicles