Investigation of brushless doubly-fed dual-stator machines for traction applications
Two brushless doubly-fed dual-stator machines with different inner-stator field windings, namely AC and DC field windings, are proposed and investigated. It is shown the proposed machine with AC field windings exhibits advantages of higher torque density and wider flux-regulation range compared with...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/168902 |
| _version_ | 1811687487919095808 |
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| author | Zeng, Zhiqiang Shen, Yiming Zhao, Wenxiang Yuan, Xin Cai, Shun Lee, Christopher Ho Tin |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zeng, Zhiqiang Shen, Yiming Zhao, Wenxiang Yuan, Xin Cai, Shun Lee, Christopher Ho Tin |
| author_sort | Zeng, Zhiqiang |
| collection | NTU |
| description | Two brushless doubly-fed dual-stator machines with different inner-stator field windings, namely AC and DC field windings, are proposed and investigated. It is shown the proposed machine with AC field windings exhibits advantages of higher torque density and wider flux-regulation range compared with its DC field winding counterpart. Unlike conventional doubly-fed hybrid-excited machines, the proposed machine consists of AC field windings and hence resulting in more flexible field current control. Its armature and field windings are separately placed in two stators, which can alleviate the space competition between the field and armature slots, as well as significantly enhance the space utilization. Consequently, both flux-regulation capability and torque density can be effectively improved. The topology, operating principle, and mathematical model of the proposed machines are introduced. Then, a sectored flux-weakening control method is proposed and elaborated. Based on finite element method (FEM), the main electromagnetic performances of the proposed machines are comprehensively evaluated. The FEM results manifest the proposed machine with AC field windings shows greatly improved flux-regulation range, higher torque and output power under the proposed sectored flux-weakening method over the whole speed range. Finally, prototype machine of the proposed machine is fabricated, and experimental verifications are performed to validate the feasibility of the proposed machines. |
| first_indexed | 2024-10-01T05:17:06Z |
| format | Journal Article |
| id | ntu-10356/168902 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:17:06Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1689022023-06-23T15:40:51Z Investigation of brushless doubly-fed dual-stator machines for traction applications Zeng, Zhiqiang Shen, Yiming Zhao, Wenxiang Yuan, Xin Cai, Shun Lee, Christopher Ho Tin School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering AC Field Windings Doubly-Fed Two brushless doubly-fed dual-stator machines with different inner-stator field windings, namely AC and DC field windings, are proposed and investigated. It is shown the proposed machine with AC field windings exhibits advantages of higher torque density and wider flux-regulation range compared with its DC field winding counterpart. Unlike conventional doubly-fed hybrid-excited machines, the proposed machine consists of AC field windings and hence resulting in more flexible field current control. Its armature and field windings are separately placed in two stators, which can alleviate the space competition between the field and armature slots, as well as significantly enhance the space utilization. Consequently, both flux-regulation capability and torque density can be effectively improved. The topology, operating principle, and mathematical model of the proposed machines are introduced. Then, a sectored flux-weakening control method is proposed and elaborated. Based on finite element method (FEM), the main electromagnetic performances of the proposed machines are comprehensively evaluated. The FEM results manifest the proposed machine with AC field windings shows greatly improved flux-regulation range, higher torque and output power under the proposed sectored flux-weakening method over the whole speed range. Finally, prototype machine of the proposed machine is fabricated, and experimental verifications are performed to validate the feasibility of the proposed machines. National Research Foundation (NRF) Submitted/Accepted version This work was supported in part by the National Research Foundation Singapore under Grant NRF-NRFF12-2020-0003. 2023-06-22T02:37:34Z 2023-06-22T02:37:34Z 2022 Journal Article Zeng, Z., Shen, Y., Zhao, W., Yuan, X., Cai, S. & Lee, C. H. T. (2022). Investigation of brushless doubly-fed dual-stator machines for traction applications. IEEE Transactions On Transportation Electrification, 9(2), 3464-3474. https://dx.doi.org/10.1109/TTE.2022.3223474 2332-7782 https://hdl.handle.net/10356/168902 10.1109/TTE.2022.3223474 2-s2.0-85142777701 2 9 3464 3474 en NRF-NRFF12-2020-0003 IEEE Transactions on Transportation Electrification © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/TTE.2022.3223474. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering AC Field Windings Doubly-Fed Zeng, Zhiqiang Shen, Yiming Zhao, Wenxiang Yuan, Xin Cai, Shun Lee, Christopher Ho Tin Investigation of brushless doubly-fed dual-stator machines for traction applications |
| title | Investigation of brushless doubly-fed dual-stator machines for traction applications |
| title_full | Investigation of brushless doubly-fed dual-stator machines for traction applications |
| title_fullStr | Investigation of brushless doubly-fed dual-stator machines for traction applications |
| title_full_unstemmed | Investigation of brushless doubly-fed dual-stator machines for traction applications |
| title_short | Investigation of brushless doubly-fed dual-stator machines for traction applications |
| title_sort | investigation of brushless doubly fed dual stator machines for traction applications |
| topic | Engineering::Electrical and electronic engineering AC Field Windings Doubly-Fed |
| url | https://hdl.handle.net/10356/168902 |
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