A Novel Hybrid Analytical Model of Active Magnetic Bearing Considering Rotor Eccentricity and Local Saturation Effect

Zhi Cao; Yunkai Huang; Baocheng Guo; Fei Peng; J. N. Dong; Ahmed Hemeida

doi:10.1109/TIE.2021.3102396

A Novel Hybrid Analytical Model of Active Magnetic Bearing Considering Rotor Eccentricity and Local Saturation Effect

Zhi Cao, Yunkai Huang^*, Baocheng Guo, Fei Peng, J. N. Dong, Ahmed Hemeida

^*Corresponding author for this work

DC systems, Energy conversion & Storage

Research output: Contribution to journal › Article › Scientific › peer-review

6 Citations (Scopus)

106 Downloads (Pure)

Abstract

To facilitate the active magnetic bearing (AMB) design and analysis, an accurate and fast model that considers both rotor eccentricity and the saturation effect is necessary. In this article, a novel hybrid analytical model (HAM) for effective calculation of the magnetic field of the AMB is proposed. Eccentricity and local saturation are considered in the proposed HAM. In the proposed HAM, the stator and rotor are modeled by elementary subdomains (ESDs) and the air-gap is modeled by magnetic equivalent circuit (MEC). Direct coupling between the solutions in the ESD regions with MEC completes the whole model matrices. Compared to the existing literature, the proposed model considers both the rotor eccentricity and material nonlinearity. The effectiveness and accuracy of the proposed HAM are validated by both the finite element model and experimental results. The results show that the proposed HAM can accurately predict the magnetic quantities of the AMB.

Original language	English
Pages (from-to)	7151-7160
Number of pages	10
Journal	IEEE Transactions on Industrial Electronics
Volume	69
Issue number	7
DOIs	https://doi.org/10.1109/TIE.2021.3102396
Publication status	Published - 2022

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Active magnetic bearing (AMB)
analytical model
hybrid model
magnetic equivalent circuit (MEC)
material nonlinearity
rotor eccentricity
saturation
subdomain method

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A_Novel_Hybrid_Analytical_Model_of_Active_Magnetic_Bearing_Considering_Rotor_Eccentricity_and_Local_Saturation_EffectFinal published version, 2.71 MB

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title = "A Novel Hybrid Analytical Model of Active Magnetic Bearing Considering Rotor Eccentricity and Local Saturation Effect",

abstract = "To facilitate the active magnetic bearing (AMB) design and analysis, an accurate and fast model that considers both rotor eccentricity and the saturation effect is necessary. In this article, a novel hybrid analytical model (HAM) for effective calculation of the magnetic field of the AMB is proposed. Eccentricity and local saturation are considered in the proposed HAM. In the proposed HAM, the stator and rotor are modeled by elementary subdomains (ESDs) and the air-gap is modeled by magnetic equivalent circuit (MEC). Direct coupling between the solutions in the ESD regions with MEC completes the whole model matrices. Compared to the existing literature, the proposed model considers both the rotor eccentricity and material nonlinearity. The effectiveness and accuracy of the proposed HAM are validated by both the finite element model and experimental results. The results show that the proposed HAM can accurately predict the magnetic quantities of the AMB.",

keywords = "Active magnetic bearing (AMB), analytical model, hybrid model, magnetic equivalent circuit (MEC), material nonlinearity, rotor eccentricity, saturation, subdomain method",

author = "Zhi Cao and Yunkai Huang and Baocheng Guo and Fei Peng and Dong, {J. N.} and Ahmed Hemeida",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ",

year = "2022",

doi = "10.1109/TIE.2021.3102396",

language = "English",

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AU - Cao, Zhi

AU - Huang, Yunkai

AU - Guo, Baocheng

AU - Peng, Fei

AU - Dong, J. N.

AU - Hemeida, Ahmed

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2022

Y1 - 2022

N2 - To facilitate the active magnetic bearing (AMB) design and analysis, an accurate and fast model that considers both rotor eccentricity and the saturation effect is necessary. In this article, a novel hybrid analytical model (HAM) for effective calculation of the magnetic field of the AMB is proposed. Eccentricity and local saturation are considered in the proposed HAM. In the proposed HAM, the stator and rotor are modeled by elementary subdomains (ESDs) and the air-gap is modeled by magnetic equivalent circuit (MEC). Direct coupling between the solutions in the ESD regions with MEC completes the whole model matrices. Compared to the existing literature, the proposed model considers both the rotor eccentricity and material nonlinearity. The effectiveness and accuracy of the proposed HAM are validated by both the finite element model and experimental results. The results show that the proposed HAM can accurately predict the magnetic quantities of the AMB.

AB - To facilitate the active magnetic bearing (AMB) design and analysis, an accurate and fast model that considers both rotor eccentricity and the saturation effect is necessary. In this article, a novel hybrid analytical model (HAM) for effective calculation of the magnetic field of the AMB is proposed. Eccentricity and local saturation are considered in the proposed HAM. In the proposed HAM, the stator and rotor are modeled by elementary subdomains (ESDs) and the air-gap is modeled by magnetic equivalent circuit (MEC). Direct coupling between the solutions in the ESD regions with MEC completes the whole model matrices. Compared to the existing literature, the proposed model considers both the rotor eccentricity and material nonlinearity. The effectiveness and accuracy of the proposed HAM are validated by both the finite element model and experimental results. The results show that the proposed HAM can accurately predict the magnetic quantities of the AMB.

KW - Active magnetic bearing (AMB)

KW - analytical model

KW - hybrid model

KW - magnetic equivalent circuit (MEC)

KW - material nonlinearity

KW - rotor eccentricity

KW - saturation

KW - subdomain method

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JF - IEEE Transactions on Industrial Electronics

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A Novel Hybrid Analytical Model of Active Magnetic Bearing Considering Rotor Eccentricity and Local Saturation Effect

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