Analytical modeling‐based optimal design of multilayered and multisegmented D‐type interior permanent magnet synchronous motor,International Transactions on Electrical Energy Systems

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Analytical modeling‐based optimal design of multilayered and multisegmented D‐type interior permanent magnet synchronous motor
International Transactions on Electrical Energy Systems ( IF 1.9 ) Pub Date : 2021-03-29 , DOI: 10.1002/2050-7038.12876
Malik Muhammad Zaid _{1,

2} , Muhammad Umair Aslam ₃ , Muhammad Sibtain ₄ , Saqib Hasnain ₅ , Jong‐Suk Ro ₁

Affiliation

In this paper, an interior permanent magnet synchronous motor with a D‐type rotor configuration is presented. The performance of the proposed motor is compared with that of the widely used V‐type interior permanent magnet synchronous motor. For a fair comparison, all the motor parameters are identical. With the advent of different rotor topologies, multilayered and multisegmented permanent magnets are extensively used; however, an analytical modeling of D‐type interior permanent magnet synchronous motor has not yet been conducted. Furthermore, its analysis using the finite element method is considerably time‐consuming. To resolve this problem, an analytical method based on a magnetic equivalent circuit is proposed for the slotless D‐type interior permanent magnet synchronous motor. It is then compared with the finite element method at different pole arc–pole pitch ratios to demonstrate the effectiveness of the proposed method. Additionally, Schwarz‐Christoffel mapping is employed to maintain the slot shape and include the effect of adjacent slots by considering the slotting effect in the slotless air‐gap flux density. Finally, the presented motors are optimized based on the pole arc–pole pitch ratio to maximize the fundamental air‐gap flux density and minimize the total harmonic distortion.

中文翻译：

基于分析模型的多层和多段D型内部永磁同步电动机的优化设计

本文介绍了一种具有D型转子配置的内部永磁同步电动机。所建议的电动机的性能与广泛使用的V型内部永磁同步电动机的性能进行了比较。为了公平比较，所有电机参数都是相同的。随着不同转子拓扑的出现，多层和多段式永磁体被广泛使用。但是，尚未进行D型内部永磁同步电动机的解析模型。此外，使用有限元方法进行分析非常耗时。为了解决这个问题，提出了一种基于磁等效电路的无槽D型内部永磁同步电动机的分析方法。然后将其与在不同极弧-极间距比下的有限元方法进行比较，以证明所提方法的有效性。此外，通过考虑无缝隙气隙通量密度中的缝隙效应，采用Schwarz-Christoffel映射来保持缝隙形状并包括相邻缝隙的影响。最后，基于极弧-极距比对所展示的电机进行了优化，以使基本气隙磁通密度最大化，并使总谐波失真最小化。

更新日期：2021-05-03

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