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...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2015-06-01
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| Series: | Mechanical Engineering Journal |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/mej/3/1/3_15-00145/_pdf/-char/en |
| _version_ | 1818827052198920192 |
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| author | Erik FLEISCHER Wilfried HOFMANN |
| author_facet | Erik FLEISCHER Wilfried HOFMANN |
| author_sort | Erik FLEISCHER |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-19T00:37:25Z |
| format | Article |
| id | doaj.art-aeec8cc8f5fe4244a28563e151d237ae |
| institution | Directory Open Access Journal |
| issn | 2187-9745 |
| language | English |
| last_indexed | 2024-12-19T00:37:25Z |
| publishDate | 2015-06-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Mechanical Engineering Journal |
| spelling | doaj.art-aeec8cc8f5fe4244a28563e151d237ae2022-12-21T20:44:43ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452015-06-013115-0014515-0014510.1299/mej.15-00145mejLinear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparisonErik FLEISCHER0Wilfried HOFMANN1Technische Universiät Dresden Elektrotechnisches InstitutTechnische Universiät Dresden Elektrotechnisches InstitutThis 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.https://www.jstage.jst.go.jp/article/mej/3/1/3_15-00145/_pdf/-char/enclarke transformationcombined bearingfeedback linearizationfrequency responselinear controlmagnetic bearingsensitivity analysis |
| spellingShingle | Erik FLEISCHER Wilfried HOFMANN Linear and nonlinear control of a three pole combined radial and axial active magnetic bearing - a comparison Mechanical Engineering Journal clarke transformation combined bearing feedback linearization frequency response linear control magnetic bearing sensitivity analysis |
| title | 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_short | 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 |
| topic | clarke transformation combined bearing feedback linearization frequency response linear control magnetic bearing sensitivity analysis |
| url | https://www.jstage.jst.go.jp/article/mej/3/1/3_15-00145/_pdf/-char/en |
| work_keys_str_mv | AT erikfleischer linearandnonlinearcontrolofathreepolecombinedradialandaxialactivemagneticbearingacomparison AT wilfriedhofmann linearandnonlinearcontrolofathreepolecombinedradialandaxialactivemagneticbearingacomparison |