Performance Analysis of PMSM Based on Improved Trapezoidal Halbach Magnet Arrays

Yu, Zihao; Yan, Liang; Zhou, Yuchen; Liu, Jiatong; He, Xinghua; Aboelhassan, Ahmed

doi:10.1109/iciea54703.2022.10006031

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…Moreover, because the arrangement of permanent magnets is irrational, the magnetic force of permanent magnets is not well utilized. However, the Halbach array has been widely used as a permanent magnet arrangement that achieves high magnetic field strength in specific directions [19,20]. In recent years, the application of Halbach arrays in permanent magnet motors has become a research hotspot, such as in permanent disk motors [21], permanent magnet linear motors [22], permanent magnet vernier motors [23], and so on.…”

Section: Introductionmentioning

confidence: 99%

Design and Multi-Objective Optimization for Improving Torque Performance of a Permanent Magnet-Assisted Synchronous Reluctance Motor

Zhang,

Xing,

Kang

et al. 2024

Applied Sciences

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Permanent magnet-assisted synchronous reluctance motors (PMA-SynRMs) are widely used in various industries as a relatively inexpensive and high-performance energy conversion device. The model proposed in this article relies on a magnetic pole-biased permanent magnet synchronous reluctance motor with a magnetic focusing effect. Two types of models with Halbach array and magnetic focusing effect have been proposed, which increase excitation and make the internal magnetic circuit of the rotor more saturated, thereby achieving higher electromagnetic torque. Through finite element simulation analysis and verification, the motor characteristics of the basic and proposed permanent magnet-assisted synchronous reluctance motor were calculated, including the air gap flux density and back electromotive force (EMF) in no-load analysis, as well as the average torque, torque ripple, and efficiency in load analysis. In addition, multi-objective optimization was also conducted on the rotor topology structure of proposed model two, using the uniform Latin hypercube sampling method to uniformly sample the data samples and the Pearson correlation coefficients to perform a sensitivity analysis on the data. The pilOPT multi-objective autonomous optimization algorithm was used to perform multi-objective autonomous optimization on parameters with high correlation, and the best-found solution based on the Pareto front was selected. Compared with proposed model two, the average torque of the optimized model increased by 18.14%, the efficiency increased by 1.05% and the torque ripple decreased by 5.22%. Finally, the anti-demagnetization performance of the optimized model’s permanent magnet was analyzed.

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Section: Introductionmentioning

confidence: 99%

Design and Multi-Objective Optimization for Improving Torque Performance of a Permanent Magnet-Assisted Synchronous Reluctance Motor

Zhang,

Xing,

Kang

et al. 2024

Applied Sciences

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Investigation of surface-inset Halbach machines with trapezoidal mixed grade magnets

Qiu

Xiao

2023

International Journal of Applied Electromagnetics and Mechanics

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In order to increase the torque performance of the conventional surface-inset Halbach machines, a surface-inset Halbach machine with trapezoidal mixed grade magnets is proposed and investigated. Based on a layered and linear superposition method, the air-gap magnetic fields are analytically obtained from solution of matrix equations. In addition, the dimensions of mid-magnet and the remanences of Halbach magnets are analytically optimized. In order to show its advantages, the optimized performances of the proposed machine model are compared with those of the conventional Halbach and trapezoidal equal grade Halbach machines. The prediction shows that the proposed optimized machine model has the largest electromagnetic torque and the lowest torque ripple. The demagnetization performance is also investigated. Finally, the finite element analysis (FEA) results verify the analytical predictions.

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Performance Analysis of PMSM Based on Improved Trapezoidal Halbach Magnet Arrays

Cited by 2 publications

References 20 publications

Design and Multi-Objective Optimization for Improving Torque Performance of a Permanent Magnet-Assisted Synchronous Reluctance Motor

Design and Multi-Objective Optimization for Improving Torque Performance of a Permanent Magnet-Assisted Synchronous Reluctance Motor

Investigation of surface-inset Halbach machines with trapezoidal mixed grade magnets

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