Proposal of a magnetically levitated shaded pole induction motor

A magnetic bearing supports a rotary shaft without any contact by magnetic force, but such a system is complex due to additional mechanical and electrical components. In order to reduce the size and complexity of the driving circuit of the bearingless motor, this paper proposes a magnetically levita...

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Autores principales:	Nobuyuki KURITA, Takeo ISHIKAWA, Genri SUZUKI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2015
Materias:	magnetically levitated motor shaded pole induction motor bearingless drive Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/b6c2b3a5260144ac9952314372c8afb7
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spelling	oai:doaj.org-article:b6c2b3a5260144ac9952314372c8afb72021-11-26T06:32:14ZProposal of a magnetically levitated shaded pole induction motor2187-974510.1299/mej.14-00533https://doaj.org/article/b6c2b3a5260144ac9952314372c8afb72015-12-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/2/6/2_14-00533/_pdf/-char/enhttps://doaj.org/toc/2187-9745A magnetic bearing supports a rotary shaft without any contact by magnetic force, but such a system is complex due to additional mechanical and electrical components. In order to reduce the size and complexity of the driving circuit of the bearingless motor, this paper proposes a magnetically levitated shaded pole induction motor. The rotor is still supported by magnetic force, but the motor has a very simple structure because magnetic levitation and rotation can be achieved with only one amplifier. The operating principle of the shaded pole motor was confirmed by FEM magnetic field analysis. The suspension force and rotational torque have also been analyzed. It was found that in order to support and rotate a rotor, large amount of current is required. A simple experimental setup using a commercial shaded pole induction motor was designed and fabricated to verify the validity of the FEM analysis. In the test system, the rotor is supported by a linear rail that allows the rotor free rotation and free movement in a vertical direction but not in a horizontal direction. According to the measured step response, stable magnetic levitation suspension was achieved despite a relatively slow settling time due to the large friction force in the horizontal direction.Nobuyuki KURITATakeo ISHIKAWAGenri SUZUKIThe Japan Society of Mechanical Engineersarticlemagnetically levitated motorshaded pole induction motorbearingless driveMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 2, Iss 6, Pp 14-00533-14-00533 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	magnetically levitated motor shaded pole induction motor bearingless drive Mechanical engineering and machinery TJ1-1570
spellingShingle	magnetically levitated motor shaded pole induction motor bearingless drive Mechanical engineering and machinery TJ1-1570 Nobuyuki KURITA Takeo ISHIKAWA Genri SUZUKI Proposal of a magnetically levitated shaded pole induction motor
description	A magnetic bearing supports a rotary shaft without any contact by magnetic force, but such a system is complex due to additional mechanical and electrical components. In order to reduce the size and complexity of the driving circuit of the bearingless motor, this paper proposes a magnetically levitated shaded pole induction motor. The rotor is still supported by magnetic force, but the motor has a very simple structure because magnetic levitation and rotation can be achieved with only one amplifier. The operating principle of the shaded pole motor was confirmed by FEM magnetic field analysis. The suspension force and rotational torque have also been analyzed. It was found that in order to support and rotate a rotor, large amount of current is required. A simple experimental setup using a commercial shaded pole induction motor was designed and fabricated to verify the validity of the FEM analysis. In the test system, the rotor is supported by a linear rail that allows the rotor free rotation and free movement in a vertical direction but not in a horizontal direction. According to the measured step response, stable magnetic levitation suspension was achieved despite a relatively slow settling time due to the large friction force in the horizontal direction.
format	article
author	Nobuyuki KURITA Takeo ISHIKAWA Genri SUZUKI
author_facet	Nobuyuki KURITA Takeo ISHIKAWA Genri SUZUKI
author_sort	Nobuyuki KURITA
title	Proposal of a magnetically levitated shaded pole induction motor
title_short	Proposal of a magnetically levitated shaded pole induction motor
title_full	Proposal of a magnetically levitated shaded pole induction motor
title_fullStr	Proposal of a magnetically levitated shaded pole induction motor
title_full_unstemmed	Proposal of a magnetically levitated shaded pole induction motor
title_sort	proposal of a magnetically levitated shaded pole induction motor
publisher	The Japan Society of Mechanical Engineers
publishDate	2015
url	https://doaj.org/article/b6c2b3a5260144ac9952314372c8afb7
work_keys_str_mv	AT nobuyukikurita proposalofamagneticallylevitatedshadedpoleinductionmotor AT takeoishikawa proposalofamagneticallylevitatedshadedpoleinductionmotor AT genrisuzuki proposalofamagneticallylevitatedshadedpoleinductionmotor
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Proposal of a magnetically levitated shaded pole induction motor

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