High performance axial flux permanent magnet synchronous motor for high speed applications

Neethu, S; Pal, Saumitra; Wankhede, Ashok K.; Fernandes, B. G.

doi:10.1109/iecon.2017.8216880

Cited by 11 publications

(3 citation statements)

References 8 publications

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“…At the winding configuration level, the concentrated winding structure is simple and compact with short end windings, which is usually used in some slotless motors or fields requiring compact structure. However, the Back-EMF waveform of this winding structure is not sinusoidal, and the rotor loss is large caused by high harmonics [79]. Compared to centralized windings, double-layer short-distance distribution winding can improve the Back-EMF waveform and magnetomotive force waveforms, thus improving electromagnetic performance, but the end winding of this structure is long [80].…”

Section: Stator Designmentioning

confidence: 99%

Design and Analysis of the High-Speed Permanent Magnet Motors: A Review on the State of the Art

Shen

Zhou

et al. 2022

Machines

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This paper provides an overview of the design and analysis of high-speed PM motors by focusing on prominent issues such as motor losses, temperature rise, rotor strength and vibration. The design challenges of high-speed PM motors are briefly described, and the application of various stator and rotor structures and materials is presented in electromagnetic design. Combined with the temperature distribution of the motor, various heat dissipation measures to suppress the temperature rise are summarized. Strength and dynamics analysis of the rotor are outlined with respect to the safety of rotor operation. The current status of coupled multi-physics domain design used to improve the comprehensive design capability of high-speed PM motors is reviewed. Future directions of technologies related to the design of high-speed PM motors are pointed out.

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Section: Stator Designmentioning

confidence: 99%

Design and Analysis of the High-Speed Permanent Magnet Motors: A Review on the State of the Art

Shen

Zhou

et al. 2022

Machines

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“…The motor control system usually obtained high-precision rotor position and speed information through the position sensor to complete the closed-loop control of the control system [101]. In order to further improve the stability and reliability of the control system, some studies adopted the sensorless vector control algorithms for AFPM motors [102,103]. Luo et al proposed the sensorless control strategy of the AFPM machine in electrical vehicles [104], including initial rotor position estimation and rotating position estimation, and the sensorless control strategy was convenient for in-wheel application of electric vehicles.…”

Section: Field Oriented Control (Foc)mentioning

confidence: 99%

A Review of Axial-Flux Permanent-Magnet Motors: Topological Structures, Design, Optimization and Control Techniques

Hao

Wang

et al. 2022

Machines

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Axial-flux permanent-magnet (AFPM) motors are a kind of important motor with compact structure, high power density and high torque density. In this review, the progress of AFPM motors and their key technologies are analyzed and described, with emphasis on the topological structures, design and optimization methods and control techniques. Based on these analyses, the main findings of the review are the following: (1) the yokeless and segment armature (YASA)-type motors have great potential for development; (2) the multi-objective optimization design theories can be integrated and applied to optimize the design of AFPM motors; and (3) optimal control and sensorless control have important value in improving system reliability and reducing cost. Finally, highlights and prospects are provided for further advancing AFPM motors.

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“…The nonslotted axial flux topologies have higher torque density, higher efficiency, better heat scattering, and lower noise level than the slotted axial flux topologies [18][19][20]. In the nonslotted machine, the effective air gap is inevitably very large, which results in limiting the flux density variations due to the magnetomotive force (MMF) harmonic components and thus the rotor iron losses [21]. In addition, the nonslotted topologies usually have ignorable cogging torques and consequently the minimum level of torque ripples and lower sound level.…”

Section: Introductionmentioning

confidence: 99%

An analytical formula for selecting the feeding voltage and frequency in aTORUS-type nonslotted axial flux permanent magnet machine design

Mirzahosseini¹,

Darabi²,

Assili³

2019

Turk J Elec Eng & Comp Sci

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Axial flux permanent magnet (AFPM) motors are usually controlled by drive; therefore, in the design of these machines the feeding voltage and frequency are completely independent parameters. Undoubtedly, the values of these parameters have significant effects on the performance characteristics of the machine. The main objective of this paper is to investigate the effects of these parameters on the efficiency of a double-sided TORUS-type nonslotted (TORUS NS) AFPM motor and propose a formula for selecting the optimal values of the feeding voltage and frequency at the beginning of the design process. To fulfill this goal, different machines with various speeds, powers, and feeding voltages are designed based on a proposed design algorithm. Then a formula for calculating machine efficiency is presented based on the frequency, number of pole pairs, output power, and feeding voltage of the machine. In order to confirm the validity of the proposed formula, several fabricated machines with different powers and speeds are selected as case studies. The efficiency of these machines is calculated using the proposed formula and is measured in the laboratory. Comparing the results confirms the excellent accuracy of the proposed formula.

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High performance axial flux permanent magnet synchronous motor for high speed applications

Cited by 11 publications

References 8 publications

Design and Analysis of the High-Speed Permanent Magnet Motors: A Review on the State of the Art

Design and Analysis of the High-Speed Permanent Magnet Motors: A Review on the State of the Art

A Review of Axial-Flux Permanent-Magnet Motors: Topological Structures, Design, Optimization and Control Techniques

An analytical formula for selecting the feeding voltage and frequency in aTORUS-type nonslotted axial flux permanent magnet machine design

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