Design of an asymmetric rotor pole for wound field synchronous machines
This study proposes a novel asymmetric rotor pole design for wound field synchronous machines (WFSMs), which can achieve high saliency ratio and also low torque ripple. The key point is the optimal design of the asymmetric rotor pole with the inverse-cosine-shaped (ICS) plus reverse 3 rd harmonic sh...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
China Electrotechnical Society
2021-12-01
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| Series: | CES Transactions on Electrical Machines and Systems |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9666802 |
| _version_ | 1797755803236564992 |
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| author | Wenping Chai Byung-il Kwon |
| author_facet | Wenping Chai Byung-il Kwon |
| author_sort | Wenping Chai |
| collection | DOAJ |
| description | This study proposes a novel asymmetric rotor pole design for wound field synchronous machines (WFSMs), which can achieve high saliency ratio and also low torque ripple. The key point is the optimal design of the asymmetric rotor pole with the inverse-cosine-shaped (ICS) plus reverse 3 rd harmonic shaping. The asymmetric rotor pole can help to improve the average output torque by enhancing the saliency ratio. The reverse 3 rd harmonic shaping on the rotor pole surface is mainly used to reduce the torque ripple. To certify the effectivity of the proposed design, three-phase 54-slot / 6-pole 4.7kW WFSMs with uniform air gap and with non-uniform air gap shaped by the ICS plus optimum reverse 3 rd harmonic are utilized as the basic model and referenced model for comparison. For the referenced model, the optimum amplitude of reverse 3 rd harmonic is preferred as 1/6. Finally, all electromagnetic characteristics of the investigated machines are predicted by the finite-element method (FEM). The highest saliency ratio and comparatively low torque ripple have been verified. |
| first_indexed | 2024-03-12T17:52:26Z |
| format | Article |
| id | doaj.art-474cd43db073475bbf409913ded2d15b |
| institution | Directory Open Access Journal |
| issn | 2096-3564 2837-0325 |
| language | English |
| last_indexed | 2024-03-12T17:52:26Z |
| publishDate | 2021-12-01 |
| publisher | China Electrotechnical Society |
| record_format | Article |
| series | CES Transactions on Electrical Machines and Systems |
| spelling | doaj.art-474cd43db073475bbf409913ded2d15b2023-08-03T02:45:02ZengChina Electrotechnical SocietyCES Transactions on Electrical Machines and Systems2096-35642837-03252021-12-015432132710.30941/CESTEMS.2021.00037Design of an asymmetric rotor pole for wound field synchronous machinesWenping Chai0Byung-il Kwon1School of New Energy, Harbin Institute of Technology at Weihai, Weihai, ChinaDepartment of Electronic Engineering, Hanyang University, Seoul, South KoreaThis study proposes a novel asymmetric rotor pole design for wound field synchronous machines (WFSMs), which can achieve high saliency ratio and also low torque ripple. The key point is the optimal design of the asymmetric rotor pole with the inverse-cosine-shaped (ICS) plus reverse 3 rd harmonic shaping. The asymmetric rotor pole can help to improve the average output torque by enhancing the saliency ratio. The reverse 3 rd harmonic shaping on the rotor pole surface is mainly used to reduce the torque ripple. To certify the effectivity of the proposed design, three-phase 54-slot / 6-pole 4.7kW WFSMs with uniform air gap and with non-uniform air gap shaped by the ICS plus optimum reverse 3 rd harmonic are utilized as the basic model and referenced model for comparison. For the referenced model, the optimum amplitude of reverse 3 rd harmonic is preferred as 1/6. Finally, all electromagnetic characteristics of the investigated machines are predicted by the finite-element method (FEM). The highest saliency ratio and comparatively low torque ripple have been verified.https://ieeexplore.ieee.org/document/9666802asymmetric rotor polehigh saliency ratiolow torque ripplewound field synchronous machine |
| spellingShingle | Wenping Chai Byung-il Kwon Design of an asymmetric rotor pole for wound field synchronous machines CES Transactions on Electrical Machines and Systems asymmetric rotor pole high saliency ratio low torque ripple wound field synchronous machine |
| title | Design of an asymmetric rotor pole for wound field synchronous machines |
| title_full | Design of an asymmetric rotor pole for wound field synchronous machines |
| title_fullStr | Design of an asymmetric rotor pole for wound field synchronous machines |
| title_full_unstemmed | Design of an asymmetric rotor pole for wound field synchronous machines |
| title_short | Design of an asymmetric rotor pole for wound field synchronous machines |
| title_sort | design of an asymmetric rotor pole for wound field synchronous machines |
| topic | asymmetric rotor pole high saliency ratio low torque ripple wound field synchronous machine |
| url | https://ieeexplore.ieee.org/document/9666802 |
| work_keys_str_mv | AT wenpingchai designofanasymmetricrotorpoleforwoundfieldsynchronousmachines AT byungilkwon designofanasymmetricrotorpoleforwoundfieldsynchronousmachines |