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不对称磁体形状对表面永磁同步电动机性能的结构影响。

Structural effects of asymmetric magnet shape on performance of surface permanent magnet synchronous motors.

作者信息

Choe Jungwoo, Kwon Hyuksung, Kim Hyunwoo, Koo Doheon, So Hongyun

机构信息

Department of Mechanical Engineering, Hanyang University, Seoul, 04763, South Korea.

Department of Electrical and Computer Engineering, Seoul National University, Seoul, 08826, South Korea.

出版信息

Sci Rep. 2024 Feb 17;14(1):3976. doi: 10.1038/s41598-023-50366-z.

DOI:10.1038/s41598-023-50366-z
PMID:38368472
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10874409/
Abstract

This study proposes a novel surface permanent magnet synchronous motor (N-SPMSM) structure, which features asymmetric magnets attached to the rotor surface. The N-SPMSM structure exhibits reduced structural complexity and minimal electromagnetic performance degradation. The properties of N-SPMSM are analyzed by comparing its structural complexity (in terms of the shape) and manufacturing complexity and electromagnetic performance [in terms of the cogging-mutual torque ratio and back-electromotive force (EMF) values], with the corresponding values of a ring-type SPMSM (R-SPMSM) and step-skew-type SPMSM (T-SPMSM). The analysis results demonstrate that N-SPMSM has lower shape complexity than T-SPMSM and lower manufacturing complexity than both R-SPMSM and T-SPMSM. The cogging torque reduction and back-EMF performances of N-SPMSM are similar to that of R-SPMSM and T-SPMSM.

摘要

本研究提出了一种新型表面永磁同步电动机（N-SPMSM）结构，其特点是在转子表面附着不对称磁体。N-SPMSM结构具有降低的结构复杂性和最小的电磁性能退化。通过比较N-SPMSM的结构复杂性（形状方面）、制造复杂性和电磁性能[齿槽互转矩比和反电动势（EMF）值方面]与环形SPMSM（R-SPMSM）和阶梯斜槽型SPMSM（T-SPMSM）的相应值，分析了N-SPMSM的特性。分析结果表明，N-SPMSM的形状复杂性低于T-SPMSM，制造复杂性低于R-SPMSM和T-SPMSM。N-SPMSM的齿槽转矩降低和反电动势性能与R-SPMSM和T-SPMSM相似。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9661/10874409/c148e500d515/41598_2023_50366_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9661/10874409/c6dbf51e43a0/41598_2023_50366_Fig10_HTML.jpg
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