Analysis and Design of a Double-Stator Flux-Switching Permanent Magnet Machine Using Ferrite Magnet in Hybrid Electric Vehicles

Kim, Dongjae; Hwang, Hongsik; Bae, Sungwoo; Lee, Cheewoo

doi:10.1109/tmag.2016.2532360

Cited by 45 publications

(25 citation statements)

References 4 publications

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“…Thus, the proposed DS-BPMM also benefits from the alleviation of geometric conflict between the magnetic and electric loadings in PS structure. Meanwhile, the torque density can be further improved with significantly reduced PM usage compared to the existing DS counterparts [8]- [16], making the developed machine beneficially cost-effective.…”

Section: Topology Evolution and Operating Principlementioning

confidence: 99%

“…The yokeless SF DS machine is geometrically similar to that of magnetically geared machines [11]. In terms of the operating principle, the yokeless DS design can be recognized as a combination of a magnetic gear and an electrical machine within one frame having two stationary parts and one rotating rotor segments [15] [16]. The multiple air-gap field harmonics are involved into effective torque production.…”

Section: Introductionmentioning

confidence: 99%

“…In order to alleviate this problem, an alternate ferrite design was presented to maintain comparable torque density with the conventional interior-PM (IPM) machine while maintaining the advantage of low cost [19]. Nevertheless, as the inner and outer stators are structurally duplicated, the geometric conflicts between the PM excitations and windings on the stator still exist in those single stator counterparts [15] [16]. This causes the reduction of the slot area for accommodating armature windings when the airgap diameter is fixed.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, this paper aims to propose novel DS biased PM machines (DS-BPMM) only having PM excitations in the inner stators. Different from the existing DS machines [15] [16] having two identical stator configurations, the developed DS-BPMMs combines the advantages of the design concept of "partitioned stator (PS)" [17]- [19] and conventional DS machines [15]- [17]. In the perspective of the geometry, the proposed machine can be considered as a synergy of an outerrotor stator PM machine plus a separate outer stator similar to the conventional fractional-slot machines [15].…”

Section: Introductionmentioning

confidence: 99%

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Novel Dual-Stator Machines With Biased Permanent Magnet Excitation

Yang

Lyu

Lin

et al. 2018

IEEE Trans. Energy Convers.

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This paper proposes high-torque-density dual stator permanent magnet machines with biased permanent magnet (PM) excitation in the inner stator. The developed machine can be geometrically considered as an outer-rotor stator PM machine plus a separate outer stator similar to the conventional fractionalslot machines. Consequently, the proposed designs feature two different stator structures. Meanwhile, two sets of armature windings are employed to improve the space utilization ratio and torque density. The machine topologies and operating principles are first described. In addition, the analytical models of the machine are introduced, which are utilized to optimize the stator/rotor pole combination as well as the power splitting ratio between two stators. This design optimization is performed in order to maximize the torque capability with the constraint of copper loss. The electromagnetic characteristics of the proposed machine with different inner stator structures are evaluated and compared by the finite-element (FE) method. Finally, an optimized DS-BPMM prototype is manufactured and tested to verify the FE analyses.

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Section: Topology Evolution and Operating Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Novel Dual-Stator Machines With Biased Permanent Magnet Excitation

Yang

Lyu

Lin

et al. 2018

IEEE Trans. Energy Convers.

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“…The battery size as well as the pure electric driving range of EVs is affected by the traction motor characteristics [2]. Considering the power density and efficiency, permanent magnet (PM) machines are preferred among other types of electrical machines such as induction or switched reluctance machines [3][4][5][6][7][8][9]. In integrated systems in which the rotor can be directly integrated into the driven machinery, axial flux permanent magnet (AFPM) machines may be a competitive or even better choice compared to radial flux (RF) topology [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Particle swarm optimization approach to optimal design of an AFPM tractionmachine for different driving conditions

Rostami¹

2019

Turk J Elec Eng & Comp Sci

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Axial flux permanent magnet (AFPM) machines can be employed as the traction motor of electric vehicles due to their high torque capability, high efficiency, modular and compact construction, and capability of integration with other mechanical components in integrated systems. Besides, the system efficiency can be further improved by optimal design of the selected electric machine. In this paper, an AFPM machine is optimized against two well-known driving cycles called the New European Drive Cycle (NEDC) and US06 and the influence of the driving cycle on the obtained machine parameters is evaluated. US06 is the more demanding driving cycle and thus the machine designed for this driving cycle demands more electrical loading compared to the machine designed for NEDC. Therefore, the copper loss minimization becomes more important for the US06-optimized machine compared to the NEDC-optimized machine.Consequently, the machine design parameters optimized for different driving cycles would be quite different. Compared to the NEDC-optimized machine, the US06-optimized machine has a lower number of coil turns, lower height of teeth, and lower diameter ratio to limit the copper losses. Furthermore, fewer magnets are needed for the motor optimized for the NEDC compared to the motor optimized for US06. A quasi-3D approach and particle swarm optimization algorithm are used in the semianalytical design optimization process. Additionally, computationally efficient 3D finite-element analysis and measurements made for the prototype AFPM machine are carried out to validate the accuracy of the quasi-3D approach.

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Modeling and Simulation of Electric Motors

Mei

2024

Green Energy and Technology

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Analysis and Design of a Double-Stator Flux-Switching Permanent Magnet Machine Using Ferrite Magnet in Hybrid Electric Vehicles

Cited by 45 publications

References 4 publications

Novel Dual-Stator Machines With Biased Permanent Magnet Excitation

Novel Dual-Stator Machines With Biased Permanent Magnet Excitation

Particle swarm optimization approach to optimal design of an AFPM tractionmachine for different driving conditions

Modeling and Simulation of Electric Motors

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