A novel spoke‐type PM motor with asymmetric rotor for low torque pulsation under MTPA control condition
Abstract This article presents a novel asymmetric spoke‐type rotor structure. It is used to reduce rotor magnetic flux leakage, torque ripple and no‐load back‐EMF distortion rate while increasing the motor output torque. The traditional method of optimizing torque pulsation is the inverse cosine fun...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-05-01
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| Series: | IET Electric Power Applications |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/elp2.12178 |
| _version_ | 1823972798012325888 |
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| author | Zeyu Liu Yan Hu Bingyi Zhang Guihong Feng Jiacheng Wu |
| author_facet | Zeyu Liu Yan Hu Bingyi Zhang Guihong Feng Jiacheng Wu |
| author_sort | Zeyu Liu |
| collection | DOAJ |
| description | Abstract This article presents a novel asymmetric spoke‐type rotor structure. It is used to reduce rotor magnetic flux leakage, torque ripple and no‐load back‐EMF distortion rate while increasing the motor output torque. The traditional method of optimizing torque pulsation is the inverse cosine function, which gives a sinusoidal distribution of the air‐gap magnetic field under no‐load conditions of the motor. The fundamental wave magnetic field of the air‐gap synthetic magnetic field under the load is offset from the no‐load air‐gap magnetic field. This paper presents the design theory and method of the new type of the asymmetric rotor. Asymmetric spatial harmonics are introduced to the rotor so that the motor has a sinusoidal distribution of the rated load air‐gap field under MTPA control. In order to verify the superiority of the new rotor, the performance of four different spoke‐type rotor structure motors under the same pole‐slot combination was compared. Finally, an experimental prototype is built to verify the theoretical reliability against the design of this paper. |
| first_indexed | 2024-12-18T03:46:45Z |
| format | Article |
| id | doaj.art-00e461985dd24bdf8e848c91803890ed |
| institution | Directory Open Access Journal |
| issn | 1751-8660 1751-8679 |
| language | English |
| last_indexed | 2024-12-18T03:46:45Z |
| publishDate | 2022-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Electric Power Applications |
| spelling | doaj.art-00e461985dd24bdf8e848c91803890ed2022-12-21T21:22:00ZengWileyIET Electric Power Applications1751-86601751-86792022-05-0116558560410.1049/elp2.12178A novel spoke‐type PM motor with asymmetric rotor for low torque pulsation under MTPA control conditionZeyu Liu0Yan Hu1Bingyi Zhang2Guihong Feng3Jiacheng Wu4School of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaSchool of Electrical Engineering Shenyang University of Technology Shenyang ChinaAbstract This article presents a novel asymmetric spoke‐type rotor structure. It is used to reduce rotor magnetic flux leakage, torque ripple and no‐load back‐EMF distortion rate while increasing the motor output torque. The traditional method of optimizing torque pulsation is the inverse cosine function, which gives a sinusoidal distribution of the air‐gap magnetic field under no‐load conditions of the motor. The fundamental wave magnetic field of the air‐gap synthetic magnetic field under the load is offset from the no‐load air‐gap magnetic field. This paper presents the design theory and method of the new type of the asymmetric rotor. Asymmetric spatial harmonics are introduced to the rotor so that the motor has a sinusoidal distribution of the rated load air‐gap field under MTPA control. In order to verify the superiority of the new rotor, the performance of four different spoke‐type rotor structure motors under the same pole‐slot combination was compared. Finally, an experimental prototype is built to verify the theoretical reliability against the design of this paper.https://doi.org/10.1049/elp2.12178AC motorsharmonicsharmonics suppressionpermanent magnet motorssynchronous machinessynchronous motors |
| spellingShingle | Zeyu Liu Yan Hu Bingyi Zhang Guihong Feng Jiacheng Wu A novel spoke‐type PM motor with asymmetric rotor for low torque pulsation under MTPA control condition IET Electric Power Applications AC motors harmonics harmonics suppression permanent magnet motors synchronous machines synchronous motors |
| title | A novel spoke‐type PM motor with asymmetric rotor for low torque pulsation under MTPA control condition |
| title_full | A novel spoke‐type PM motor with asymmetric rotor for low torque pulsation under MTPA control condition |
| title_fullStr | A novel spoke‐type PM motor with asymmetric rotor for low torque pulsation under MTPA control condition |
| title_full_unstemmed | A novel spoke‐type PM motor with asymmetric rotor for low torque pulsation under MTPA control condition |
| title_short | A novel spoke‐type PM motor with asymmetric rotor for low torque pulsation under MTPA control condition |
| title_sort | novel spoke type pm motor with asymmetric rotor for low torque pulsation under mtpa control condition |
| topic | AC motors harmonics harmonics suppression permanent magnet motors synchronous machines synchronous motors |
| url | https://doi.org/10.1049/elp2.12178 |
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