Overview of Stator-Permanent Magnet Brushless Machines

Cheng, Ming; Wang, Hua; Zhang, Jianzhong; Zhao, Wenxiang

doi:10.1109/tie.2011.2123853

Cited by 690 publications

(238 citation statements)

References 73 publications

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“…Furthermore, rotor-PM motors need special auxiliary measures to overcome the centrifugal forces at high speeds, which yield complex structures and high manufacturing costs. In recent years, stator-PM motors, i.e., motors with the magnets mounted in the stator, have attracted much attention, as they are deemed a promising solution to overcome the shortcomings of the rotor-PM motors [6]. Figure 4 illustrates two representative topologies of stator-PM motors: doubly-salient PM motor (DSPM) and flux switching PM motor (FSPM).…”

Section: Stator Permanent Magnet Motormentioning

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: Stator Permanent Magnet Motormentioning

confidence: 99%

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

et al. 2015

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“…As the key element of the RE-EV system, electric machines have to offer high efficiency, high power density, high controllability, wide-speed range, and maintenance-free operation [10,11]. To achieve these goals, permanent-magnet (PM) machines have been actively developed [12][13][14][15].…”

Section: Open Accessmentioning

confidence: 99%

A Magnetless Axial-Flux Machine for Range-Extended Electric Vehicles

Lee¹,

Liu²,

Chau³

2014

Energies

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Abstract:A new magnetless axial-flux doubly-salient DC-field (AF-DSDC) machine is proposed and implemented into the application of a range-extended electric vehicle (RE-EV). By employing the radial active part for the torque production, the proposed machine can produce satisfactory torque density to fulfill the requirements of the RE-EV system. With the support of the 3D finite element method (3D-FEM), the performances of the proposed machine are calculated and compared with the requirements of the typical passenger RE-EV applications. To offer a more comprehensive illustration, the common radial-flux (RF) machines are included for comparison.

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“…According to the PM locations, PM machines can be classified into two types [3], i.e. the rotor-PM machines having rotating PMs [4]- [7], and the stator-PM machines in which PMs are static in the stator.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Partitioned Stator Flux Reversal PM Machine and Magnetically Geared Machine Operating in Stator-PM and Rotor-PM Modes

Zhu

Zhan

2017

IEEE Trans. Energy Convers.

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A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP URL' above for details on accessing the published version and note that access may require a subscription.For more information, please contact the WRAP Team at: wrap@warwick.ac.uk 1Abstract-In this paper, the partitioned stator flux reversal permanent magnet (PM) (PS-FRPM) machine and the conventional magnetically geared (MG) machine operating in both stator-PM (SPM) and rotor-PM (RPM) modes are comparatively analyzed in terms of electromagnetic performance to provide design guides for a MG machine regarding: (a) a SPM or RPM type machine and (b) a higher or lower gear ratio machine. It is found that a SPM type machine is recommended, since both PS-FRPM and MG machines operating in SPM modes have a higher phase back-EMF and hence torque than their RPM counterparts, respectively, as a result of a similar phase flux-linkage but a higher electric frequency since the iron piece number is larger than the PM pole-pair number. Moreover, a smaller gear ratio machine is preferred from the perspective of a higher power factor and hence a lower inverter power rating, as the conventional MG machines with higher gear ratios suffer from larger fluxleakage, higher synchronous reactance and hence lower power factors, as well as higher iron losses, than the PS-FRPM machines. However, higher gear ratio machines feature lower cogging torques and torque ripples due to the smaller difference between the PM pole-pair number and iron piece number. Both prototypes of PS-FRPM machine operating in SPM mode and MG machine operating in RPM mode are built and tested to verify the FE predicted results.Index Terms-Flux modulated machine, flux reversal, magnetically geared (MG) machine, partitioned stator, permanent magnet (PM), power factor, rotor-permanent magnet, stator-permanent magnet.

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Overview of Stator-Permanent Magnet Brushless Machines

Cited by 690 publications

References 73 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

A Magnetless Axial-Flux Machine for Range-Extended Electric Vehicles

Comparative Analysis of Partitioned Stator Flux Reversal PM Machine and Magnetically Geared Machine Operating in Stator-PM and Rotor-PM Modes

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