Advancement of a modular rotor permanent magnet flux switching machine for high torque performance

Usage of electric motors in electric vehicle applications have gained a lot of attention since the motor must possessed high torque density and power. Permanent magnet flux switching machines have attracted considerable interests in recent years since the flux focusing is utilizable, both armature w...

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Main Author:	Soomro, Irfan Ali
Format:	Thesis
Language:	English English English
Published:	2021
Subjects:	TK2000-2891 Dynamoelectric machinery and auxiliaries Including generators, motors, transformers
Online Access:	http://eprints.uthm.edu.my/983/1/24p%20IRFAN%20ALI%20SOOMRO.pdf http://eprints.uthm.edu.my/983/2/IRFAN%20ALI%20SOOMRO%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/983/3/IRFAN%20ALI%20SOOMRO%20WATERMARK.pdf
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spelling	my-uthm-ep.9832021-08-22T08:06:24Z Advancement of a modular rotor permanent magnet flux switching machine for high torque performance 2021-01 Soomro, Irfan Ali TK2000-2891 Dynamoelectric machinery and auxiliaries. Including generators, motors, transformers Usage of electric motors in electric vehicle applications have gained a lot of attention since the motor must possessed high torque density and power. Permanent magnet flux switching machines have attracted considerable interests in recent years since the flux focusing is utilizable, both armature windings and PM excitation sources are on the stator, and the salient pole rotor is simple yet robust. Regrettably, salient rotor and stator of PMFSM with single tooth winding have inherited flux cancellation, flux leakage, high iron losses, high winding losses, and longer flux paths which reduced the torque and efficiency of the motor. In this thesis, a flux switching motor using permanent magnet employing modular rotor is designed and investigated for high torque making it suitable for high torque performances applications. The design engaged a three-phase 12 stator tooth taking up four sets of windings per phase with 10 pole feasible modular rotor. The characteristics performance of modular rotor PMFSM were designed and analysed using JMAG designer 14.1 utilizing 2D finite element analysis (2D-FEA). The initial 12S/10P modular rotor PMFSM topology achieved an average torque of 34.44 Nm with an output power of 5.67 kW. To further improve the performance of modular rotor PMFSM, local optimization approach was conducted which achieved an average torque of 60.49Nm and an output power of 23.34 kW while maintaining the same motor’s outer diameter. Furthermore, to compare modular rotor PMFSM with salient rotor PMFSM, FEFSM and HEFSM were utilized to choose best candidate for high torque performance. In comparison, optimized modular rotor PMFSM generated the highest output torque followed by optimized salient rotor HEFSM which generated the second highest torque. Consequently, the modular rotor PMFSM produced higher average torque, less iron losses, less weight and shorten flux path than using salient rotor pole PMFSM, FEFSM or HEFSM. In conclusion, modular rotor PMFSM confirms good agreement with high torque applications. 2021-01 Thesis http://eprints.uthm.edu.my/983/ http://eprints.uthm.edu.my/983/1/24p%20IRFAN%20ALI%20SOOMRO.pdf text en public http://eprints.uthm.edu.my/983/2/IRFAN%20ALI%20SOOMRO%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/983/3/IRFAN%20ALI%20SOOMRO%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Electrical and Electronic Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK2000-2891 Dynamoelectric machinery and auxiliaries Including generators, motors, transformers
spellingShingle	TK2000-2891 Dynamoelectric machinery and auxiliaries Including generators, motors, transformers Soomro, Irfan Ali Advancement of a modular rotor permanent magnet flux switching machine for high torque performance
description	Usage of electric motors in electric vehicle applications have gained a lot of attention since the motor must possessed high torque density and power. Permanent magnet flux switching machines have attracted considerable interests in recent years since the flux focusing is utilizable, both armature windings and PM excitation sources are on the stator, and the salient pole rotor is simple yet robust. Regrettably, salient rotor and stator of PMFSM with single tooth winding have inherited flux cancellation, flux leakage, high iron losses, high winding losses, and longer flux paths which reduced the torque and efficiency of the motor. In this thesis, a flux switching motor using permanent magnet employing modular rotor is designed and investigated for high torque making it suitable for high torque performances applications. The design engaged a three-phase 12 stator tooth taking up four sets of windings per phase with 10 pole feasible modular rotor. The characteristics performance of modular rotor PMFSM were designed and analysed using JMAG designer 14.1 utilizing 2D finite element analysis (2D-FEA). The initial 12S/10P modular rotor PMFSM topology achieved an average torque of 34.44 Nm with an output power of 5.67 kW. To further improve the performance of modular rotor PMFSM, local optimization approach was conducted which achieved an average torque of 60.49Nm and an output power of 23.34 kW while maintaining the same motor’s outer diameter. Furthermore, to compare modular rotor PMFSM with salient rotor PMFSM, FEFSM and HEFSM were utilized to choose best candidate for high torque performance. In comparison, optimized modular rotor PMFSM generated the highest output torque followed by optimized salient rotor HEFSM which generated the second highest torque. Consequently, the modular rotor PMFSM produced higher average torque, less iron losses, less weight and shorten flux path than using salient rotor pole PMFSM, FEFSM or HEFSM. In conclusion, modular rotor PMFSM confirms good agreement with high torque applications.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Soomro, Irfan Ali
author_facet	Soomro, Irfan Ali
author_sort	Soomro, Irfan Ali
title	Advancement of a modular rotor permanent magnet flux switching machine for high torque performance
title_short	Advancement of a modular rotor permanent magnet flux switching machine for high torque performance
title_full	Advancement of a modular rotor permanent magnet flux switching machine for high torque performance
title_fullStr	Advancement of a modular rotor permanent magnet flux switching machine for high torque performance
title_full_unstemmed	Advancement of a modular rotor permanent magnet flux switching machine for high torque performance
title_sort	advancement of a modular rotor permanent magnet flux switching machine for high torque performance
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Electrical and Electronic Engineering
publishDate	2021
url	http://eprints.uthm.edu.my/983/1/24p%20IRFAN%20ALI%20SOOMRO.pdf http://eprints.uthm.edu.my/983/2/IRFAN%20ALI%20SOOMRO%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/983/3/IRFAN%20ALI%20SOOMRO%20WATERMARK.pdf
_version_	1747830723366092800

Advancement of a modular rotor permanent magnet flux switching machine for high torque performance

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