Comparison of Magnetic-Geared Permanent-Magnet Machines

Li, Xianglin; Chau, K. T.; Cheng, Ming; Wang, Hua

doi:10.2528/pier12080808

Cited by 85 publications

(45 citation statements)

References 52 publications

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“…Compared to the mechanical gear, the torque transmission of the magnetic gear has no contact, thus avoiding any abrasion of the in-contact parts or mechanical noise. Additionally, the magnetic gear itself has overload protection ability [49]. Figure 14a shows the basic structure of a coaxial magnetic gear.…”

Section: Magnetic-geared In-wheel Drive Systemmentioning

confidence: 99%

Advanced Electrical Machines and Machine-Based Systems for Electric and Hybrid Vehicles

et al. 2015

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Abstract:The paper presents a number of advanced solutions on electric machines and machine-based systems for the powertrain of electric vehicles (EVs). Two types of systems are considered, namely the drive systems designated to the EV propulsion and the power split devices utilized in the popular series-parallel hybrid electric vehicle architecture. After reviewing the main requirements for the electric drive systems, the paper illustrates advanced electric machine topologies, including a stator permanent magnet (stator-PM) motor, a hybrid-excitation motor, a flux memory motor and a redundant motor structure. Then, it illustrates advanced electric drive systems, such as the magnetic-geared in-wheel drive and the integrated starter generator (ISG). Finally, three machine-based implementations of the power split devices are expounded, built up around the dual-rotor PM machine, the dual-stator PM brushless machine and the magnetic-geared dual-rotor machine. As a conclusion, the development trends in the field of electric machines and machine-based systems for EVs are summarized.

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Section: Magnetic-geared In-wheel Drive Systemmentioning

confidence: 99%

Advanced Electrical Machines and Machine-Based Systems for Electric and Hybrid Vehicles

et al. 2015

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“…Ferromagnetic material provides modulation (changing) of the magnetic field. This concept of transmission is patented by Martin [22], however, its performances, especially high magnetic density, are more discussed in the papers [23,24]. The inner rotor is usually the rotor of the higher speed rotation, and outer rotor is the rotor of the lower speed rotation.…”

Section: Types Of Magnetic Gearsmentioning

confidence: 99%

“…The inner rotor is usually the rotor of the higher speed rotation, and outer rotor is the rotor of the lower speed rotation. Figure 4 Field-modulated magnetic gears a) Linear magnetic gear [25], b) Axial magnetic gear [21], c) Coaxial magnetic gear (CMG) [23] Comparative characteristics of mechanical and magnetic gears are given in Table 1. Some of the advantages of magnetic gears are that there are no noise and vibrations, no contact, so therefore, there is no need to use a lubricant.…”

Section: Types Of Magnetic Gearsmentioning

confidence: 99%

The Development of Magnetic Gears for Transportation Applications

Miladinović¹,

Ivanović²,

Blagojević³

et al. 2017

MVM

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“…Research and development in magnetic gearing has attracted a lot of interest recently because of its potential for efficient transmission torque, lubrication free maintenance, overload protection and noncontact operation compared to mechanical gears that have problems of friction, wear and tear [1]. References [2,3] reported that by integrating a magnetic gear with a PM machine, the resultant magnetic geared machine can be used as generators in low-speed renewable energy power generation applications.…”

Section: Introductionmentioning

confidence: 99%

Power Density Evaluation of a Novel Double-Stator Magnetic Geared Permanent Magnet Generator

Salihu¹,

Misron²,

Othman³

et al. 2018

PIER B

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Abstract-This paper presents the power density evaluation and power mapping performance of a novel magnetic geared double-stator permanent magnet generator (DSPMG) which is proposed to address problems of mechanical geared generators for low-speed power generation applications. The operating principle is based on three PM rotors consisting of prime permanent-magnet (PM) poles in the middle rotor and field PM poles in the inner and outer rotors respectively. To evaluate the power density performance, a 2-D finite-element method (FEM) is used to predict the performance of the generator, and a demonstrator prototype is fabricated and evaluated experimentally. The power density characteristics of the proposed generator are analyzed and reported. The measured results agree closely with the simulated ones to verify the validity of the magnetic geared generator design. Finally, a measurable comparison is conducted with other published prototype magnetic gear machines to demonstrate its benefits of higher power density and smaller volume size.

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Comparison of Magnetic-Geared Permanent-Magnet Machines

Cited by 85 publications

References 52 publications

Advanced Electrical Machines and Machine-Based Systems for Electric and Hybrid Vehicles

Advanced Electrical Machines and Machine-Based Systems for Electric and Hybrid Vehicles

The Development of Magnetic Gears for Transportation Applications

Power Density Evaluation of a Novel Double-Stator Magnetic Geared Permanent Magnet Generator

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