Linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison

This paper analyses two control strategies, linear and nonlinear, for a 5-axis magnetic suspension system built with two three pole combined radial and axial bearings. Therein soft magnetic composites (SMC) are used as iron core material to carry the required three-dimensional flux distribution. Whi...

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Autores principales:	Erik FLEISCHER, Wilfried HOFMANN
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2015
Materias:	clarke transformation combined bearing feedback linearization frequency response linear control magnetic bearing sensitivity analysis Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/aeec8cc8f5fe4244a28563e151d237ae
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spelling	oai:doaj.org-article:aeec8cc8f5fe4244a28563e151d237ae2021-11-26T06:35:12ZLinear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison2187-974510.1299/mej.15-00145https://doaj.org/article/aeec8cc8f5fe4244a28563e151d237ae2015-06-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/3/1/3_15-00145/_pdf/-char/enhttps://doaj.org/toc/2187-9745This paper analyses two control strategies, linear and nonlinear, for a 5-axis magnetic suspension system built with two three pole combined radial and axial bearings. Therein soft magnetic composites (SMC) are used as iron core material to carry the required three-dimensional flux distribution. While the linear approach has been designed around the CLARKE-Transformation to stabilize the bearing, the nonlinear one is based on feedback linearization to achieve a stable system even in the case of minimal bias flux. The paper outlines the control strategies and the controller design. Both schemes are compared regarding command response, decoupling performance and stability margin based on experimental results in the time and the frequency domain.Erik FLEISCHERWilfried HOFMANNThe Japan Society of Mechanical Engineersarticleclarke transformationcombined bearingfeedback linearizationfrequency responselinear controlmagnetic bearingsensitivity analysisMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 3, Iss 1, Pp 15-00145-15-00145 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	clarke transformation combined bearing feedback linearization frequency response linear control magnetic bearing sensitivity analysis Mechanical engineering and machinery TJ1-1570
spellingShingle	clarke transformation combined bearing feedback linearization frequency response linear control magnetic bearing sensitivity analysis Mechanical engineering and machinery TJ1-1570 Erik FLEISCHER Wilfried HOFMANN Linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison
description	This paper analyses two control strategies, linear and nonlinear, for a 5-axis magnetic suspension system built with two three pole combined radial and axial bearings. Therein soft magnetic composites (SMC) are used as iron core material to carry the required three-dimensional flux distribution. While the linear approach has been designed around the CLARKE-Transformation to stabilize the bearing, the nonlinear one is based on feedback linearization to achieve a stable system even in the case of minimal bias flux. The paper outlines the control strategies and the controller design. Both schemes are compared regarding command response, decoupling performance and stability margin based on experimental results in the time and the frequency domain.
format	article
author	Erik FLEISCHER Wilfried HOFMANN
author_facet	Erik FLEISCHER Wilfried HOFMANN
author_sort	Erik FLEISCHER
title	Linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison
title_short	Linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison
title_full	Linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison
title_fullStr	Linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison
title_full_unstemmed	Linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison
title_sort	linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison
publisher	The Japan Society of Mechanical Engineers
publishDate	2015
url	https://doaj.org/article/aeec8cc8f5fe4244a28563e151d237ae
work_keys_str_mv	AT erikfleischer linearandnonlinearcontrolofathreepolecombinedradialandaxialactivemagneticbearingacomparison AT wilfriedhofmann linearandnonlinearcontrolofathreepolecombinedradialandaxialactivemagneticbearingacomparison
_version_	1718409801713582080

Linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison

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