Vibration analysis of a permanent magnet synchronous motor by a pole/slot combination

A sixteen-pole eighteen-slot (16p/18s) permanent magnet synchronous motor (PMSM) developed in Korea Electrotechnology Research Institute (KERI) for a vertical articulated robot is chosen as a reference model, and other two pole/slot combinations (20p/18s, 20p/24s) are together compared in terms of e...

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Main Authors: Gyeonghwan Yun, Yongha Choo, Changhwan Kim, Sangjin Lee, Do-Kwan Hong, Cheewoo Lee
Format: Article
Language:English
Published: AIP Publishing LLC 2023-02-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/9.0000568
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author Gyeonghwan Yun
Yongha Choo
Changhwan Kim
Sangjin Lee
Do-Kwan Hong
Cheewoo Lee
author_facet Gyeonghwan Yun
Yongha Choo
Changhwan Kim
Sangjin Lee
Do-Kwan Hong
Cheewoo Lee
author_sort Gyeonghwan Yun
collection DOAJ
description A sixteen-pole eighteen-slot (16p/18s) permanent magnet synchronous motor (PMSM) developed in Korea Electrotechnology Research Institute (KERI) for a vertical articulated robot is chosen as a reference model, and other two pole/slot combinations (20p/18s, 20p/24s) are together compared in terms of electrical and mechanical performance. Radial force density varying in time and space is decomposed through Fast Fourier Transform (FFT), and vibration is calculated from the harmonics of radial force. The vibration of 20p/24s is best due to its mode of 4 among the three pole/slot combinations. Additionally, the variation of radial force density with respect to torque is compared between 16p/18s and 20p/18s. Despite the same number of slots in both motors, the slope of 20p/18s is greater than that of 16p/18s in radial force density due to the different number of poles. As a result, the vibration of 20p/18s is worse than that of 16p/18s.
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spelling doaj.art-51384b7700d04c2bb3628626b834050b2023-03-10T17:26:19ZengAIP Publishing LLCAIP Advances2158-32262023-02-01132025017025017-510.1063/9.0000568Vibration analysis of a permanent magnet synchronous motor by a pole/slot combinationGyeonghwan Yun0Yongha Choo1Changhwan Kim2Sangjin Lee3Do-Kwan Hong4Cheewoo Lee5Electrical Engineering Department, Pusan National University, Busan 46241, Republic of KoreaElectrical Engineering Department, Pusan National University, Busan 46241, Republic of KoreaElectrical Engineering Department, Pusan National University, Busan 46241, Republic of KoreaElectrical Engineering Department, Pusan National University, Busan 46241, Republic of KoreaElectric Energy Conversion Engineering, University of Science and Technology, Changwon 51543, Republic of KoreaElectrical Engineering Department, Pusan National University, Busan 46241, Republic of KoreaA sixteen-pole eighteen-slot (16p/18s) permanent magnet synchronous motor (PMSM) developed in Korea Electrotechnology Research Institute (KERI) for a vertical articulated robot is chosen as a reference model, and other two pole/slot combinations (20p/18s, 20p/24s) are together compared in terms of electrical and mechanical performance. Radial force density varying in time and space is decomposed through Fast Fourier Transform (FFT), and vibration is calculated from the harmonics of radial force. The vibration of 20p/24s is best due to its mode of 4 among the three pole/slot combinations. Additionally, the variation of radial force density with respect to torque is compared between 16p/18s and 20p/18s. Despite the same number of slots in both motors, the slope of 20p/18s is greater than that of 16p/18s in radial force density due to the different number of poles. As a result, the vibration of 20p/18s is worse than that of 16p/18s.http://dx.doi.org/10.1063/9.0000568
spellingShingle Gyeonghwan Yun
Yongha Choo
Changhwan Kim
Sangjin Lee
Do-Kwan Hong
Cheewoo Lee
Vibration analysis of a permanent magnet synchronous motor by a pole/slot combination
AIP Advances
title Vibration analysis of a permanent magnet synchronous motor by a pole/slot combination
title_full Vibration analysis of a permanent magnet synchronous motor by a pole/slot combination
title_fullStr Vibration analysis of a permanent magnet synchronous motor by a pole/slot combination
title_full_unstemmed Vibration analysis of a permanent magnet synchronous motor by a pole/slot combination
title_short Vibration analysis of a permanent magnet synchronous motor by a pole/slot combination
title_sort vibration analysis of a permanent magnet synchronous motor by a pole slot combination
url http://dx.doi.org/10.1063/9.0000568
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