Analysis of a Dual-Rotor, Toroidal-Winding, Axial-Flux Vernier Permanent Magnet Machine

Zou, Tianjie; Li, Dawei; Qu, Ronghai; Li, Jian; Jiang, Dong

doi:10.1109/tia.2017.2657493

Cited by 67 publications

(30 citation statements)

References 27 publications

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“…Axial-flux PM machine is featured of the large ratio of outer diameter to axial length, which is superior to the radial-flux one in terms of high torque density and high space utilization. Thus, it is very attractive for high torque density applications [113][114][115][116][117][118]. By combining the concepts of E-shape core with axial field, Lin et al proposed a new axial field fault-tolerant FSPM machine in [117], as shown in Fig.…”

Section: E Axial-flux Structurementioning

confidence: 99%

Overview of permanent-magnet fault-tolerant machines: Topology and design

Zhao

2018

Trans. Electr. Mach. Syst.

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Permanent-magnet (PM) machines have attracted a lot of interest in various applications since they have the merits of high torque density, high power density and high efficiency. However, issue of poor fault tolerance of the conventional PM machines restricts their practical applications in the field of safety-critical applications, e.g. aerospace, electric vehicle, electrical propulsion and wind power generator applications. An enormous amount of work has been done to improve the faulttolerant capability of PM machines. This paper will review research work on PM fault-tolerant machines up-to-date, including modular design, short-circuit current limitation design, redundant design, ease of thermal dissipation of PM design, and torque enhancement design techniques. The work of this paper can provide some references for future studies and engineering applications of PM fault-tolerant machines for safety-critical applications.

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Section: E Axial-flux Structurementioning

confidence: 99%

Overview of permanent-magnet fault-tolerant machines: Topology and design

Zhao

2018

Trans. Electr. Mach. Syst.

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“…The pole pairs and synchronous speeds of the two rotors are identical so they are fixed together to drive a common shaft. A similar vernier type and SRM were presented in [99] and [100] respectively.…”

Section: A Pmimmentioning

confidence: 86%

Emerging Multiport Electrical Machines and Systems: Past Developments, Current Challenges, and Future Prospects

Cheng

Han

Buja

et al. 2018

IEEE Trans. Ind. Electron.

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Distinct from the conventional machines with only one electrical and one mechanical port, electrical machines featuring multiple electrical/mechanical ports (the so-called multi-port electrical machines) provide a compact, flexible, and highly-efficient manner to convert and/or transfer energies among different ports. This paper attempts to make a comprehensive overview of existing multi-port topologies, from fundamental characteristics to advanced modeling, analysis, and control, with particular emphasis on the extensively investigated brushless doubly-fed machines for highly-reliable wind turbines and power split devices for hybrid electric vehicles. A qualitative review approach is mainly adopted but strong efforts are also made to quantitatively highlight the electromagnetic and control performance. Research challenges are identified and future trends are discussed.

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“…In order to improve the torque density of low-speed and large-torque direct-drive motors, the dual-stator/double-rotor structure is increasingly combined with a permanent disk motor and transverse flux motor for topology innovation, which can effectively improve the utilization rate of the punch and make full use of internal space to improve efficiency and torque density [2,18]. The PMMs in [19,20] adopt toroidal windings, which shortens the winding terminal, increases the heat dissipation area, and avoids the crossing of the winding terminal. Furthermore, the installation and fixing of the toroidal windings are very simple.…”

Section: Introductionmentioning

confidence: 99%

A Novel Direct-Drive Permanent Magnet Synchronous Motor with Toroidal Windings

Gao

et al. 2019

Energies

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A direct-drive motor has the merits of low speed, high torque, and elimination of mechanical deceleration mechanisms, and is widely used in various fields. A novel direct-drive permanent magnet synchronous motor is presented herein, in which all coils are wrapped around the stator yoke in the same orientation. The structure of the novel direct-drive permanent magnet synchronous motor with toroidal windings (N-TWDDPMSM) is introduced and its operating principle is analyzed by describing the variation in the armature magnet field versus time. Furthermore, based on the same power grade and mechanical size, several finite-element models of motors with different windings are established using Magnet software to analyze the distribution of magnetic field, back-electromotive force (back-EMF), power-angle characteristics, loss characteristics, etc. Compared with the traditional permanent magnet synchronous motor (T-PMSM), the traditional permanent magnet synchronous motor with toroidal windings (T-TWPMSM), and the N-TWDDPMSM, the N-TWDDPMSM shows advantages of low speed and high torque, and the feasibility and superiority of the N-TWDDPMSM are verified.

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Analysis of a Dual-Rotor, Toroidal-Winding, Axial-Flux Vernier Permanent Magnet Machine

Cited by 67 publications

References 27 publications

Overview of permanent-magnet fault-tolerant machines: Topology and design

Overview of permanent-magnet fault-tolerant machines: Topology and design

Emerging Multiport Electrical Machines and Systems: Past Developments, Current Challenges, and Future Prospects

A Novel Direct-Drive Permanent Magnet Synchronous Motor with Toroidal Windings

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