Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines
Two different approaches to characterize the torque and radial force production in a Bearingless Multi-Sector Permanent Magnet (BMSPM) machine are presented in this work. The first method consists of modelling the motor in terms of torque and force production as a function of the stationary referenc...
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Institute of Electrical and Electronics Engineers
2018
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| Online Access: | https://eprints.nottingham.ac.uk/50443/ |
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| author | Sala, Giacomo Valente, Giorgio Formentini, Andrea Papini, Luca Gerada, David Zanchetta, Pericle Tani, A. Gerada, C. |
| author_facet | Sala, Giacomo Valente, Giorgio Formentini, Andrea Papini, Luca Gerada, David Zanchetta, Pericle Tani, A. Gerada, C. |
| author_sort | Sala, Giacomo |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Two different approaches to characterize the torque and radial force production in a Bearingless Multi-Sector Permanent Magnet (BMSPM) machine are presented in this work. The first method consists of modelling the motor in terms of torque and force production as a function of the stationary reference frame α-β currents. The current control reference signals are then evaluated adopting the Joule losses minimization as constrain by means of the pseudo inverse matrix. The second method is based on the control of the magnetic field harmonics in the airgap through the current Space Vector (SV) technique. Once the magnetic field harmonics involved in the torque and force production are determined, the SV transformation can be defined to obtain the reference current space vectors. The methods are validated by numerical simulations, Finite Element Analysis (FEA) and experimental tests. The differences in terms of two Degrees of Freedom (DOF) levitation performance and efficiency are highlighted in order to give the reader an in-depth comparison of the two methods. |
| first_indexed | 2025-11-14T20:16:49Z |
| format | Article |
| id | nottingham-50443 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:16:49Z |
| publishDate | 2018 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-504432020-05-04T19:48:43Z https://eprints.nottingham.ac.uk/50443/ Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines Sala, Giacomo Valente, Giorgio Formentini, Andrea Papini, Luca Gerada, David Zanchetta, Pericle Tani, A. Gerada, C. Two different approaches to characterize the torque and radial force production in a Bearingless Multi-Sector Permanent Magnet (BMSPM) machine are presented in this work. The first method consists of modelling the motor in terms of torque and force production as a function of the stationary reference frame α-β currents. The current control reference signals are then evaluated adopting the Joule losses minimization as constrain by means of the pseudo inverse matrix. The second method is based on the control of the magnetic field harmonics in the airgap through the current Space Vector (SV) technique. Once the magnetic field harmonics involved in the torque and force production are determined, the SV transformation can be defined to obtain the reference current space vectors. The methods are validated by numerical simulations, Finite Element Analysis (FEA) and experimental tests. The differences in terms of two Degrees of Freedom (DOF) levitation performance and efficiency are highlighted in order to give the reader an in-depth comparison of the two methods. Institute of Electrical and Electronics Engineers 2018-09-01 Article PeerReviewed Sala, Giacomo, Valente, Giorgio, Formentini, Andrea, Papini, Luca, Gerada, David, Zanchetta, Pericle, Tani, A. and Gerada, C. (2018) Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines. IEEE Transactions on Industrial Electronics, 65 (9). pp. 6912-6922. ISSN 1557-9948 Analytical models Displacement control Force control Machine vector control Magnetic levitation Permanent Magnet machines http://ieeexplore.ieee.org/document/8264739/ doi:10.1109/TIE.2018.2795590 doi:10.1109/TIE.2018.2795590 |
| spellingShingle | Analytical models Displacement control Force control Machine vector control Magnetic levitation Permanent Magnet machines Sala, Giacomo Valente, Giorgio Formentini, Andrea Papini, Luca Gerada, David Zanchetta, Pericle Tani, A. Gerada, C. Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines |
| title | Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines |
| title_full | Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines |
| title_fullStr | Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines |
| title_full_unstemmed | Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines |
| title_short | Space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines |
| title_sort | space vectors and pseudo inverse matrix methods for the radial force control in bearingless multi-sector permanent magnet machines |
| topic | Analytical models Displacement control Force control Machine vector control Magnetic levitation Permanent Magnet machines |
| url | https://eprints.nottingham.ac.uk/50443/ https://eprints.nottingham.ac.uk/50443/ https://eprints.nottingham.ac.uk/50443/ |