Analysis of Effect of the Magnetization Distribution of Multi-Pole PM on SPMSM Performance Using Equivalent Magnetic Circuit Considering Dead Zone
In multi-pole permanent magnets (PMs) such a ring-type PMs, as multi-poles are magnetized in one segment, the ends of each pole are weakly magnetized, which is known as the dead zone. Thus, when analyzing characteristics of the motor with multi-pole PMs, accurate results can be obtained by consideri...
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| Format: | Article |
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MDPI AG
2021-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/11/3279 |
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| author | Jae-Hyun Kim Kyoung-Soo Cha Sung-Woo Hwang Soo-Gyung Lee Min-Ro Park Young-Doo Yoon Myung-Seop Lim |
| author_facet | Jae-Hyun Kim Kyoung-Soo Cha Sung-Woo Hwang Soo-Gyung Lee Min-Ro Park Young-Doo Yoon Myung-Seop Lim |
| author_sort | Jae-Hyun Kim |
| collection | DOAJ |
| description | In multi-pole permanent magnets (PMs) such a ring-type PMs, as multi-poles are magnetized in one segment, the ends of each pole are weakly magnetized, which is known as the dead zone. Thus, when analyzing characteristics of the motor with multi-pole PMs, accurate results can be obtained by considering the magnetization distribution. For this reason, this paper proposed an equivalent magnetic circuit (EMC) for external-rotor surface-mounted permanent magnet synchronous motors (SPMSMs) considering the dead zone to analyze the effects of the dead zone on the characteristics of the motor. As the magnetization in the dead zone gradually decreases toward the end of the pole, the magnetization distribution is assumed to have a trapezoidal shape. To describe the magnetization distribution, each pole was divided into several elements, and the equivalent residual magnetic flux density was applied to the elements of the dead zone. Finally, the validity of the proposed EMC was verified by comparing the back electro-motive force and air-gap magnetic flux density obtained by the EMC, finite-element analysis, and test. |
| first_indexed | 2024-03-10T10:44:20Z |
| format | Article |
| id | doaj.art-daf39e8bde4547a2b30626ed97957b96 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T10:44:20Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-daf39e8bde4547a2b30626ed97957b962023-11-21T22:44:09ZengMDPI AGEnergies1996-10732021-06-011411327910.3390/en14113279Analysis of Effect of the Magnetization Distribution of Multi-Pole PM on SPMSM Performance Using Equivalent Magnetic Circuit Considering Dead ZoneJae-Hyun Kim0Kyoung-Soo Cha1Sung-Woo Hwang2Soo-Gyung Lee3Min-Ro Park4Young-Doo Yoon5Myung-Seop Lim6Department of Automotive Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Automotive Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Automotive Engineering, Hanyang University, Seoul 04763, KoreaSteel Solution R&D Center, Posco, Incheon 21985, KoreaInteractive Robotics R&D Division, Korea Institute of Robotics & Technology Convergence, Pohang 37553, KoreaDepartment of Automotive Engineering, Hanyang University, Seoul 04763, KoreaDepartment of Automotive Engineering, Hanyang University, Seoul 04763, KoreaIn multi-pole permanent magnets (PMs) such a ring-type PMs, as multi-poles are magnetized in one segment, the ends of each pole are weakly magnetized, which is known as the dead zone. Thus, when analyzing characteristics of the motor with multi-pole PMs, accurate results can be obtained by considering the magnetization distribution. For this reason, this paper proposed an equivalent magnetic circuit (EMC) for external-rotor surface-mounted permanent magnet synchronous motors (SPMSMs) considering the dead zone to analyze the effects of the dead zone on the characteristics of the motor. As the magnetization in the dead zone gradually decreases toward the end of the pole, the magnetization distribution is assumed to have a trapezoidal shape. To describe the magnetization distribution, each pole was divided into several elements, and the equivalent residual magnetic flux density was applied to the elements of the dead zone. Finally, the validity of the proposed EMC was verified by comparing the back electro-motive force and air-gap magnetic flux density obtained by the EMC, finite-element analysis, and test.https://www.mdpi.com/1996-1073/14/11/3279dead zoneequivalent magnetic circuit (EMC)magnetization distributionmulti-pole permanent magnet |
| spellingShingle | Jae-Hyun Kim Kyoung-Soo Cha Sung-Woo Hwang Soo-Gyung Lee Min-Ro Park Young-Doo Yoon Myung-Seop Lim Analysis of Effect of the Magnetization Distribution of Multi-Pole PM on SPMSM Performance Using Equivalent Magnetic Circuit Considering Dead Zone Energies dead zone equivalent magnetic circuit (EMC) magnetization distribution multi-pole permanent magnet |
| title | Analysis of Effect of the Magnetization Distribution of Multi-Pole PM on SPMSM Performance Using Equivalent Magnetic Circuit Considering Dead Zone |
| title_full | Analysis of Effect of the Magnetization Distribution of Multi-Pole PM on SPMSM Performance Using Equivalent Magnetic Circuit Considering Dead Zone |
| title_fullStr | Analysis of Effect of the Magnetization Distribution of Multi-Pole PM on SPMSM Performance Using Equivalent Magnetic Circuit Considering Dead Zone |
| title_full_unstemmed | Analysis of Effect of the Magnetization Distribution of Multi-Pole PM on SPMSM Performance Using Equivalent Magnetic Circuit Considering Dead Zone |
| title_short | Analysis of Effect of the Magnetization Distribution of Multi-Pole PM on SPMSM Performance Using Equivalent Magnetic Circuit Considering Dead Zone |
| title_sort | analysis of effect of the magnetization distribution of multi pole pm on spmsm performance using equivalent magnetic circuit considering dead zone |
| topic | dead zone equivalent magnetic circuit (EMC) magnetization distribution multi-pole permanent magnet |
| url | https://www.mdpi.com/1996-1073/14/11/3279 |
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