Reluctance Force Magnetic Suspension Characteristics and Control for Cylindrical Rotor Bearingless Motors
In this paper, the modeling and control of reluctance-force-based magnetic suspension in cylindrical rotor, smooth air-gap bearingless motors are presented. The full suspension system dynamics, including both the destabilizing forces due to the motor field and the active magnetic suspension control...
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| Format: | Article |
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ASME International
2019
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| Online Access: | http://hdl.handle.net/1721.1/120035 https://orcid.org/0000-0001-9998-430X https://orcid.org/0000-0001-5358-5450 |
| _version_ | 1826212831082577920 |
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| author | Zhou, Lei Trumper, David L |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Zhou, Lei Trumper, David L |
| author_sort | Zhou, Lei |
| collection | MIT |
| description | In this paper, the modeling and control of reluctance-force-based magnetic suspension in cylindrical rotor, smooth air-gap bearingless motors are presented. The full suspension system dynamics, including both the destabilizing forces due to the motor field and the active magnetic suspension control forces, are modeled, and a transfer function of the bearingless motor suspension plant is derived. It is shown that the suspension system dynamics in a bearingless motor depend on the motor winding current amplitude. This requires the magnetic suspension controllers to address the changing system dynamics and to stabilize the suspension under different driving conditions. A controller design with its gains changing with the motor winding current amplitude is proposed. The derived model and the proposed controller design are verified by experiments with a hybrid hysteresis-induction type bearingless motor. It is shown that the derived mathematical model provides an effective basis for loop-shaping control design for the reluctance-force-based magnetic suspension systems in bearingless motors, and the proposed controller design can stabilize the rotor's suspension under varying excitation conditions. |
| first_indexed | 2024-09-23T15:38:36Z |
| format | Article |
| id | mit-1721.1/120035 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T15:38:36Z |
| publishDate | 2019 |
| publisher | ASME International |
| record_format | dspace |
| spelling | mit-1721.1/1200352022-10-02T03:07:00Z Reluctance Force Magnetic Suspension Characteristics and Control for Cylindrical Rotor Bearingless Motors Zhou, Lei Trumper, David L Massachusetts Institute of Technology. Department of Mechanical Engineering Zhou, Lei Trumper, David L In this paper, the modeling and control of reluctance-force-based magnetic suspension in cylindrical rotor, smooth air-gap bearingless motors are presented. The full suspension system dynamics, including both the destabilizing forces due to the motor field and the active magnetic suspension control forces, are modeled, and a transfer function of the bearingless motor suspension plant is derived. It is shown that the suspension system dynamics in a bearingless motor depend on the motor winding current amplitude. This requires the magnetic suspension controllers to address the changing system dynamics and to stabilize the suspension under different driving conditions. A controller design with its gains changing with the motor winding current amplitude is proposed. The derived model and the proposed controller design are verified by experiments with a hybrid hysteresis-induction type bearingless motor. It is shown that the derived mathematical model provides an effective basis for loop-shaping control design for the reluctance-force-based magnetic suspension systems in bearingless motors, and the proposed controller design can stabilize the rotor's suspension under varying excitation conditions. 2019-01-14T19:31:58Z 2019-01-14T19:31:58Z 2017-01 2016-10 2019-01-08T16:08:49Z Article http://purl.org/eprint/type/JournalArticle 0022-0434 1528-9028 http://hdl.handle.net/1721.1/120035 Zhou, Lei, and David L. Trumper. “Reluctance Force Magnetic Suspension Characteristics and Control for Cylindrical Rotor Bearingless Motors.” Journal of Dynamic Systems, Measurement, and Control 139, 3 (January 2017): 031003 © 2017 ASME https://orcid.org/0000-0001-9998-430X https://orcid.org/0000-0001-5358-5450 http://dx.doi.org/10.1115/1.4035007 Journal of Dynamic Systems, Measurement, and Control Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf ASME International ASME |
| spellingShingle | Zhou, Lei Trumper, David L Reluctance Force Magnetic Suspension Characteristics and Control for Cylindrical Rotor Bearingless Motors |
| title | Reluctance Force Magnetic Suspension Characteristics and Control for Cylindrical Rotor Bearingless Motors |
| title_full | Reluctance Force Magnetic Suspension Characteristics and Control for Cylindrical Rotor Bearingless Motors |
| title_fullStr | Reluctance Force Magnetic Suspension Characteristics and Control for Cylindrical Rotor Bearingless Motors |
| title_full_unstemmed | Reluctance Force Magnetic Suspension Characteristics and Control for Cylindrical Rotor Bearingless Motors |
| title_short | Reluctance Force Magnetic Suspension Characteristics and Control for Cylindrical Rotor Bearingless Motors |
| title_sort | reluctance force magnetic suspension characteristics and control for cylindrical rotor bearingless motors |
| url | http://hdl.handle.net/1721.1/120035 https://orcid.org/0000-0001-9998-430X https://orcid.org/0000-0001-5358-5450 |
| work_keys_str_mv | AT zhoulei reluctanceforcemagneticsuspensioncharacteristicsandcontrolforcylindricalrotorbearinglessmotors AT trumperdavidl reluctanceforcemagneticsuspensioncharacteristicsandcontrolforcylindricalrotorbearinglessmotors |