Modal Analysis and Structure Optimization of Permanent Magnet Synchronous Motor

Zhao, Jian; Wang, Zhibin; Liu, Haiqiang; Ning, Fan; Hong, Xuewu; Du, Jingjuan; Yu, Manzhu

doi:10.1109/access.2020.3017679

Cited by 21 publications

(4 citation statements)

References 8 publications

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“…Natural frequency analysis [33], [34], [35] of a rotor involves determining the inherent frequencies at which the rotor tends to vibrate freely. This analysis is important for understanding the dynamic behavior and potential vibration modes of the rotor.…”

Section: Vibration Analysismentioning

confidence: 99%

Mechanical and Vibration Analysis of a High-Speed Outer Rotor Electric Motor

Barua,

Lin,

Rallabandi

et al. 2024

IEEE Access

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has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). VOLUME XX, 2017 1Date of publication xxxx 00, 0000, date of current version xxxx 00, 0000.

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Section: Vibration Analysismentioning

confidence: 99%

Mechanical and Vibration Analysis of a High-Speed Outer Rotor Electric Motor

Barua,

Lin,

Rallabandi

et al. 2024

IEEE Access

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“…This feature holds enormous potential for reducing greenhouse gas emissions and the release of toxic wastes [4]. Permanent Magnet Synchronous Motors (PMSMs), with advantages such as small size, high efficiency, and high power density, have become a key component of EVs [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Electromagnetic Performance in Interior Permanent Magnet Motors with Different Central and Bilateral Bridges

Shao,

Cai,

Yang

2024

Machines

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Studies on the central and bilateral bridges of interior permanent magnet (IPM) motors often focus on individual mechanical strength or electromagnetic performance, lacking comparative studies on the electromagnetic performance of motors with different central and bilateral bridges under the same mechanical strength. This paper designs three rotors with different central and bilateral bridges and compares the electromagnetic performance of the three motors. First, to ensure the safe operation of the three rotors at high speeds, the mechanical stress of each rotor has been analyzed using the finite-element method (FEM). Subsequently, the major electromagnetic performances of the three motors are analyzed and compared, including the air-gap flux density, back electromotive force (back-EMF), inductance, salience, torque, power, loss, efficiency, and demagnetization. The results indicate that the rotor without central bridges has the largest leakage flux and the lowest torque but exhibits minimal torque ripple. The rotor with narrower bilateral bridges has the highest torque and maximum torque ripple. The torque performance of the rotor with wider bilateral bridges lies between the two aforementioned motors, and it possesses the highest efficiency. In the end, by adjusting the dimensions of the permanent magnets, the torque of all three models increases, but the motor with narrower bilateral bridges still has the largest torque. These findings provide valuable references for rotor design.

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“…Therefore, the use of high-efficiency motors is an important direction for the development of electric vehicles [5]. Permanent magnet synchronous motors are widely used in various engineering fields because of their high-power density and high efficiency [6][7][8][9]. However, due to the inherent structure of permanent magnet synchronous motors, the cogging torque is inevitably generated, leading to the rise of torque ripple, and the study of its suppression method is of great significance for the permanent magnet synchronous motors [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Multi‐Objective Optimization and Analysis of Asymmetric Hybrid‐Magnet Offset Motor for Electric Vehicles

Shi,

Lv,

2023

IEEJ Transactions Elec Engng

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Aiming at the high cost of permanent magnet synchronous motor and the reduction of motor output performance caused by high cogging torque and torque ripple, an asymmetric hybrid‐magnet offset motor is proposed. Based on the winding function theory and the equivalent magnetic circuit method, the expressions of stator and rotor magnetic potential are derived respectively, and the analytical model of torque ripple is established by combining with the Lorentz force law. By using the magnetic pole offset method, the phase offset model of the cogging torque is established, and the analytical expressions of the cogging torque and the magnetic pole offset angle are derived. The results of the simulation and experiments show that the asymmetric hybrid‐magnet offset motor has lower no‐load back‐EMF harmonic content and rare‐earth material ratio than the traditional permanent magnet motor, and its performance in terms of the cogging torque and the torque ripple is better than that of the traditional permanent magnet motor. © 2023 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

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Modal Analysis and Structure Optimization of Permanent Magnet Synchronous Motor

Cited by 21 publications

References 8 publications

Mechanical and Vibration Analysis of a High-Speed Outer Rotor Electric Motor

Mechanical and Vibration Analysis of a High-Speed Outer Rotor Electric Motor

Comparison of Electromagnetic Performance in Interior Permanent Magnet Motors with Different Central and Bilateral Bridges

Multi‐Objective Optimization and Analysis of Asymmetric Hybrid‐Magnet Offset Motor for Electric Vehicles

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