Model Order Reduction of Bearingless Reluctance Motor Including Eccentricity

Mehrnaz Farzam Far; Victor Mukherjee; Floran Martin; Paavo Rasilo; Anouar Belahcen

doi:10.1109/ICELMACH.2018.8506758

Model Order Reduction of Bearingless Reluctance Motor Including Eccentricity

Mehrnaz Farzam Far, Victor Mukherjee, Floran Martin, Paavo Rasilo, Anouar Belahcen

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

1 Citation (Scopus)

Abstract

Eccentricity in a bearingless motor may occur during different operating states of the machine. This rises challenges in designing robust control for the machine with a lumped parameter model, due to the cross coupling of the windings with respect to the eccentric position of the rotor, the saturation of the ferromagnetic material, and spatial complexity. The non-linearity of the ferromagnetic material and the spatial harmonics can be considered in a finite element model of the machine, although applying it in a real time system is unreasonable. We propose a novel method based on orthogonal interpolation to reduce the order of the 2D finite element model of a bearingless synchronous reluctance motor, suitable for implementation in a real-time system. The winding currents and the eccentricity are given as inputs to the reduced model and the nodal values of the magnetic vector potential is obtained as the output, wherefrom the flux linkages, torque, and forces can be computed easily.

Original language	English
Title of host publication	Proceedings of the 2018 23rd International Conference on Electrical Machines, ICEM 2018
Publisher	IEEE
Pages	2243-2249
Number of pages	7
ISBN (Electronic)	9781538624777
DOIs	https://doi.org/10.1109/ICELMACH.2018.8506758
Publication status	Published - 24 Oct 2018
MoE publication type	A4 Article in a conference publication
Event	International Conference on Electrical Machines - Ramada Plaza Thraki, Alexandroupoli, Greece Duration: 3 Sep 2018 → 6 Sep 2018 Conference number: 23 https://www.icem.cc/2018/

Conference

Conference	International Conference on Electrical Machines
Abbreviated title	ICEM
Country	Greece
City	Alexandroupoli
Period	03/09/2018 → 06/09/2018
Internet address	https://www.icem.cc/2018/

Keywords

Bearingless synchronous reluctance motor
Eccentricity
Finite element analysis
Model order reduction
Orthogonal interpolation method

Access to Document

10.1109/ICELMACH.2018.8506758

http://urn.fi/URN:NBN:fi:tuni-201910023643

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2 Finished

Coupling magneto-mechanical model with manufacturing process
Belahcen, A. & Martin, F.
01/09/2016 → 31/08/2019
Project: Academy of Finland: Other research funding
Model-Reduction and Uncertainty-Propagation in Energy Conversion Devices (More)
Belahcen, A., Farzam Far, M., Martin, F., Sathyan, S., Ruzibaev, A. & Balasubramanian, A.
01/09/2015 → 31/08/2019
Project: Academy of Finland: Other research funding

Cite this

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title = "Model Order Reduction of Bearingless Reluctance Motor Including Eccentricity",

abstract = "Eccentricity in a bearingless motor may occur during different operating states of the machine. This rises challenges in designing robust control for the machine with a lumped parameter model, due to the cross coupling of the windings with respect to the eccentric position of the rotor, the saturation of the ferromagnetic material, and spatial complexity. The non-linearity of the ferromagnetic material and the spatial harmonics can be considered in a finite element model of the machine, although applying it in a real time system is unreasonable. We propose a novel method based on orthogonal interpolation to reduce the order of the 2D finite element model of a bearingless synchronous reluctance motor, suitable for implementation in a real-time system. The winding currents and the eccentricity are given as inputs to the reduced model and the nodal values of the magnetic vector potential is obtained as the output, wherefrom the flux linkages, torque, and forces can be computed easily.",

keywords = "Bearingless synchronous reluctance motor, Eccentricity, Finite element analysis, Model order reduction, Orthogonal interpolation method",

author = "Far, {Mehrnaz Farzam} and Victor Mukherjee and Floran Martin and Paavo Rasilo and Anouar Belahcen",

year = "2018",

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booktitle = "Proceedings of the 2018 23rd International Conference on Electrical Machines, ICEM 2018",

publisher = "IEEE",

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Far, MF, Mukherjee, V, Martin, F, Rasilo, P & Belahcen, A 2018, Model Order Reduction of Bearingless Reluctance Motor Including Eccentricity. in Proceedings of the 2018 23rd International Conference on Electrical Machines, ICEM 2018., 8506758, IEEE, pp. 2243-2249, International Conference on Electrical Machines, Alexandroupoli, Greece, 03/09/2018. https://doi.org/10.1109/ICELMACH.2018.8506758

Model Order Reduction of Bearingless Reluctance Motor Including Eccentricity. / Far, Mehrnaz Farzam; Mukherjee, Victor; Martin, Floran; Rasilo, Paavo; Belahcen, Anouar.

Proceedings of the 2018 23rd International Conference on Electrical Machines, ICEM 2018. IEEE, 2018. p. 2243-2249 8506758.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

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T1 - Model Order Reduction of Bearingless Reluctance Motor Including Eccentricity

AU - Far, Mehrnaz Farzam

AU - Mukherjee, Victor

AU - Martin, Floran

AU - Rasilo, Paavo

AU - Belahcen, Anouar

N1 - Conference code: 23

PY - 2018/10/24

Y1 - 2018/10/24

N2 - Eccentricity in a bearingless motor may occur during different operating states of the machine. This rises challenges in designing robust control for the machine with a lumped parameter model, due to the cross coupling of the windings with respect to the eccentric position of the rotor, the saturation of the ferromagnetic material, and spatial complexity. The non-linearity of the ferromagnetic material and the spatial harmonics can be considered in a finite element model of the machine, although applying it in a real time system is unreasonable. We propose a novel method based on orthogonal interpolation to reduce the order of the 2D finite element model of a bearingless synchronous reluctance motor, suitable for implementation in a real-time system. The winding currents and the eccentricity are given as inputs to the reduced model and the nodal values of the magnetic vector potential is obtained as the output, wherefrom the flux linkages, torque, and forces can be computed easily.

AB - Eccentricity in a bearingless motor may occur during different operating states of the machine. This rises challenges in designing robust control for the machine with a lumped parameter model, due to the cross coupling of the windings with respect to the eccentric position of the rotor, the saturation of the ferromagnetic material, and spatial complexity. The non-linearity of the ferromagnetic material and the spatial harmonics can be considered in a finite element model of the machine, although applying it in a real time system is unreasonable. We propose a novel method based on orthogonal interpolation to reduce the order of the 2D finite element model of a bearingless synchronous reluctance motor, suitable for implementation in a real-time system. The winding currents and the eccentricity are given as inputs to the reduced model and the nodal values of the magnetic vector potential is obtained as the output, wherefrom the flux linkages, torque, and forces can be computed easily.

KW - Bearingless synchronous reluctance motor

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KW - Finite element analysis

KW - Model order reduction

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Model Order Reduction of Bearingless Reluctance Motor Including Eccentricity

Abstract

Conference

Keywords

Access to Document

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Coupling magneto-mechanical model with manufacturing process

Model-Reduction and Uncertainty-Propagation in Energy Conversion Devices (More)

Cite this