Analytical Modeling of an Axial Flux Magnetic-Geared Double-Rotor Machine With Interior-Modulating Rotor

Lang, Jiewen; Tong, Chengde; Bai, Jingang; Zheng, Ping; Liu, Jiaqi; Liu, Guopeng

doi:10.1109/tmag.2021.3078841

Cited by 8 publications

(4 citation statements)

References 6 publications

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“…2. The To simplify the calculations and improve the analytical efficiency, the factors that have less influence on the central problem are ignored commonly, so the following assumptions are made for the analytical model [16][17][18][19][20][21][22]24,25,27]:…”

Section: Structure and Parametersmentioning

confidence: 99%

“…To simplify the calculations and improve the analytical efficiency, the factors that have less influence on the central problem are ignored commonly, so the following assumptions are made for the analytical model [16–22,24,25,27]: The iron permeability of the stator and rotor is assumed to be infinite, ignoring the saturation effect. It should be noted that the iron saturation is not significant in the PMC‐AFPM machine, which will be presented in Section 5.…”

Section: Equivalent Analytical Modelmentioning

confidence: 99%

“…The PM arrangements determine the Fourier expansion of the magnetization intensity of the PM subdomain in the subdomain model. Many studies have been carried out on subdomain models for different PM arrangements, such as surface‐mounted PMs with parallel magnetization [19,20] and radial magnetization [21], Halbach array PMs [17,22,23], tangential PMs [24,25]. In Ref.…”

Section: Introductionmentioning

confidence: 99%

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Equivalent Analytical Model of Magnetic Field in Parallel Magnetic Circuit Axial Flux Permanent Magnet Machines

Xiaoxiao,

Xiaoyuan,

Peng

et al. 2024

IEEJ Transactions Elec Engng

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The axial flux permanent magnet (AFPM) machines with the parallel magnetic circuit (PMC) rotor can effectively improve its torque density. The PMC rotor consists of two sub‐rotors, radial Halbach array permanent magnet (PM) and tangential PM. The magnetic fields generated by two sub‐rotors are not in the same 2‐D analytical planes. In this paper, an equivalent analytical model of PMC‐AFPM machines is proposed to solve this problem. The radial Halbach array PM rotor is equated to the axial Halbach array PM rotor based on the equivalent transformation principle. The exact subdomain models of equivalent axial Halbach array PM rotor and tangential PM rotor are built respectively and then superimposed to obtain the magnetic field distribution. The electromagnetic characteristics of the PMC‐AFPM machine under no‐load and load conditions are calculated by the proposed analytical model and compared with calculations of the finite element model (FEM). The results verify the accuracy of the equivalent analytical model. The comparative analysis of the AFPM machines with PMC rotor and tangential PM rotor verifies the advantage of PMC rotor configuration to improve the torque density. © 2024 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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Section: Structure and Parametersmentioning

confidence: 99%

Section: Equivalent Analytical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Equivalent Analytical Model of Magnetic Field in Parallel Magnetic Circuit Axial Flux Permanent Magnet Machines

Xiaoxiao,

Xiaoyuan,

Peng

et al. 2024

IEEJ Transactions Elec Engng

View full text Add to dashboard Cite

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“…In recent years, to eliminate brushes and slip rings, many magnetically geared machines, such as stator PM machines [15], vernier PM machines [16,17], magnetically geared double-rotor machines [18,19] etc., are investigated. Meanwhile, several brushless double-rotor machines (BDRM) based on magnetic field modulated (MFM) theory, such as radial MFM-BDRM [20][21][22][23], axial MFM-BDRM [24,25], and dual-electrical-port dual-mechanical-port machine [26][27][28], have been proposed and developed. The torques acting on the two rotor of these schemes are not equal according to the special torque relation of stator and two rotors [29,30].…”

Section: Introductionmentioning

confidence: 99%

Analysis and experimental verification of transverse‐dislocated magnetic‐field modulated brushless contra‐rotating machine

Wang

Sui

Liu

et al. 2023

IET Electric Power Appl

Self Cite

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The contra‐rotating machine (CRM) has been a preferable selection of the contra‐rotating propulsion system (CRPS) owing to its high efficiency, high compactness, and low noise. However, the conventional CRM with rotating stator has the problem of brush and slip ring, and the conventional brushless CRM has the problem of coordinated control of equal and opposite torque. Aiming at the above problems, this article proposes a transverse‐dislocated magnetic‐field modulated brushless contra‐rotating machine (TDMFM‐BCRM). The proposed TDMFM‐BCRM has some advantages of no rotating winding, no associated brushes and slip rings, and equal and opposite torques at any time, therefore it has good potential for the CRPS. The working principle of the TDMFM‐BCRM including three dimensional magnetic‐field modulated theory, back electromotive force (EMF) generation, and torque relation is studied. Then, the influences of main parameters including magnetic block parameters and PM sizes on torques are investigated. The critical electromagnetic performances of the TDMFM‐BCRM are analysed. A prototype of TDMFM‐BCRM is manufactured and measured to validate the above analysis. Finally, the comparison of the TDMFM‐BCRM and the existing schemes are analysed.

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Electromagnetic performance analysis of connected double-modulated axial magnetic gear embedded H-shaped pole shoes for generators

Zhang,

Wang,

2023

J. Power Electron.

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Analytical Modeling of an Axial Flux Magnetic-Geared Double-Rotor Machine With Interior-Modulating Rotor

Cited by 8 publications

References 6 publications

Equivalent Analytical Model of Magnetic Field in Parallel Magnetic Circuit Axial Flux Permanent Magnet Machines

Equivalent Analytical Model of Magnetic Field in Parallel Magnetic Circuit Axial Flux Permanent Magnet Machines

Analysis and experimental verification of transverse‐dislocated magnetic‐field modulated brushless contra‐rotating machine

Electromagnetic performance analysis of connected double-modulated axial magnetic gear embedded H-shaped pole shoes for generators

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