New structure of dual stator hybrid excitation flux switching motor for aircraft applications

Aircraft applications demand high reliability, high torque and power densities while aiming to reduce weight, complexity, fuel consumption, costs, and environmental impact. New electric driven system such as flux switching machine (FSM) has been developed which is capable to meet these requiremen...

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Main Author:	Soomro, Hassan 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/1787/2/HASSAN%20ALI%20SOOMRO%20-%20declaration.pdf http://eprints.uthm.edu.my/1787/1/HASSAN%20ALI%20SOOMRO%20-%2024p.pdf http://eprints.uthm.edu.my/1787/3/HASSAN%20ALI%20SOOMRO%20-%20fulltext.pdf
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spelling	my-uthm-ep.17872021-10-11T08:25:35Z New structure of dual stator hybrid excitation flux switching motor for aircraft applications 2021-02 Soomro, Hassan Ali TK2000-2891 Dynamoelectric machinery and auxiliaries. Including generators, motors, transformers Aircraft applications demand high reliability, high torque and power densities while aiming to reduce weight, complexity, fuel consumption, costs, and environmental impact. New electric driven system such as flux switching machine (FSM) has been developed which is capable to meet these requirements as well as providing significant technical and economic improvements over conventional systems. However, FSMs with single stator associated with limited free space for active sources in stator, which leads to some drawbacks of complicated structure, less paths for flux flow, flux cancellations, and heat generation effects. To overcome these issues, FSMs using double stator (DS) have been proposed by many researchers which provide more free space for active sources and flux to flow. Whereas, these structures show some drawbacks of flux cancelations are saturations due to the arrangement of excitation sources in both stators. Therefore, this research presents design studies of new DS hybrid excitation FSM (DS HEFSMs) having permanent magnets (PMs) in inner stator while field excitation coil (FEC) and armature coils in outer stator so that coils can be easily inserted or replaced during fault conditions. Moreover, the performance analysis of proposed design is investigated and compared with existing DS designs based on 2D finite element analysis (FEA) using JMAG software ver. 16.0 In addition to obtain the optimum torque and power, proposed DS HEFSM is optimized by treating several design parameters defined in the rotor segments, armature slot, and FEC slot using deterministic optimization approach. Accordingly, the optimized design shows the capabilities to achieved 19.6% better flux linkage compared to initial design along with 38.67%, 30.58% and 2.91% increment in torque density, power density and in efficiency respectively. While, the torque and power achieved by final design are 17% and 58% more than existing PM synchronous motor (PMSM) respectively used for aircraft propeller applications. Finally, in this research it is concluded that the proposed DS HEFSM has shown the promising capabilities to achieve higher torque densities at maximum speed ranges and can be installed in various single seated aircrafts to fly at various altitudes. 2021-02 Thesis http://eprints.uthm.edu.my/1787/ http://eprints.uthm.edu.my/1787/2/HASSAN%20ALI%20SOOMRO%20-%20declaration.pdf text en staffonly http://eprints.uthm.edu.my/1787/1/HASSAN%20ALI%20SOOMRO%20-%2024p.pdf text en public http://eprints.uthm.edu.my/1787/3/HASSAN%20ALI%20SOOMRO%20-%20fulltext.pdf text en validuser phd doctoral 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, Hassan Ali New structure of dual stator hybrid excitation flux switching motor for aircraft applications
description	Aircraft applications demand high reliability, high torque and power densities while aiming to reduce weight, complexity, fuel consumption, costs, and environmental impact. New electric driven system such as flux switching machine (FSM) has been developed which is capable to meet these requirements as well as providing significant technical and economic improvements over conventional systems. However, FSMs with single stator associated with limited free space for active sources in stator, which leads to some drawbacks of complicated structure, less paths for flux flow, flux cancellations, and heat generation effects. To overcome these issues, FSMs using double stator (DS) have been proposed by many researchers which provide more free space for active sources and flux to flow. Whereas, these structures show some drawbacks of flux cancelations are saturations due to the arrangement of excitation sources in both stators. Therefore, this research presents design studies of new DS hybrid excitation FSM (DS HEFSMs) having permanent magnets (PMs) in inner stator while field excitation coil (FEC) and armature coils in outer stator so that coils can be easily inserted or replaced during fault conditions. Moreover, the performance analysis of proposed design is investigated and compared with existing DS designs based on 2D finite element analysis (FEA) using JMAG software ver. 16.0 In addition to obtain the optimum torque and power, proposed DS HEFSM is optimized by treating several design parameters defined in the rotor segments, armature slot, and FEC slot using deterministic optimization approach. Accordingly, the optimized design shows the capabilities to achieved 19.6% better flux linkage compared to initial design along with 38.67%, 30.58% and 2.91% increment in torque density, power density and in efficiency respectively. While, the torque and power achieved by final design are 17% and 58% more than existing PM synchronous motor (PMSM) respectively used for aircraft propeller applications. Finally, in this research it is concluded that the proposed DS HEFSM has shown the promising capabilities to achieve higher torque densities at maximum speed ranges and can be installed in various single seated aircrafts to fly at various altitudes.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Soomro, Hassan Ali
author_facet	Soomro, Hassan Ali
author_sort	Soomro, Hassan Ali
title	New structure of dual stator hybrid excitation flux switching motor for aircraft applications
title_short	New structure of dual stator hybrid excitation flux switching motor for aircraft applications
title_full	New structure of dual stator hybrid excitation flux switching motor for aircraft applications
title_fullStr	New structure of dual stator hybrid excitation flux switching motor for aircraft applications
title_full_unstemmed	New structure of dual stator hybrid excitation flux switching motor for aircraft applications
title_sort	new structure of dual stator hybrid excitation flux switching motor for aircraft applications
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Electrical and Electronic Engineering
publishDate	2021
url	http://eprints.uthm.edu.my/1787/2/HASSAN%20ALI%20SOOMRO%20-%20declaration.pdf http://eprints.uthm.edu.my/1787/1/HASSAN%20ALI%20SOOMRO%20-%2024p.pdf http://eprints.uthm.edu.my/1787/3/HASSAN%20ALI%20SOOMRO%20-%20fulltext.pdf
_version_	1747830866501959680

New structure of dual stator hybrid excitation flux switching motor for aircraft applications

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