Comparative Study of Novel Doubly-Fed Linear Switched Flux Permanent Magnet Machines With Different Primary Structures
To enhance the thrust force density and move a part of copper loss from the primary to the secondary of linear switched flux permanent magnet machines (LSFPMMs), this paper proposes a novel kind of doubly-fed LSFPMMs (DFLSFPMMs) by adding another set of armature winding on the secondary of LSFPMMs....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9058682/ |
| _version_ | 1818616697163087872 |
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| author | Lijian Wu Liu Zhang Jiabei Zhu Qinfen Lu Youtong Fang |
| author_facet | Lijian Wu Liu Zhang Jiabei Zhu Qinfen Lu Youtong Fang |
| author_sort | Lijian Wu |
| collection | DOAJ |
| description | To enhance the thrust force density and move a part of copper loss from the primary to the secondary of linear switched flux permanent magnet machines (LSFPMMs), this paper proposes a novel kind of doubly-fed LSFPMMs (DFLSFPMMs) by adding another set of armature winding on the secondary of LSFPMMs. The design and working principles of the new winding are analyzed first. It is found that the optimal coil pitch depends on the primary structure. Then, the parameters of DFLSFPMMs with U-core, C-core, E-core, and multi-tooth primary structures are globally optimized, and their electromagnetic performances are investigated by 2D finite element method. The result shows that the average thrust force of U-core DFLSFPMM is 30% higher than that of conventional LSFPMM counterpart, and it is also 23%-29% higher than those of DFLSFPMMs with other three primary structures. Besides, the U-core machine with tubular structure is analyzed for the potential application of electromagnetic shock absorbers, which shows the U-core DFLSFPMM has 10% higher peak-to-peak damping force than linear spoken-type PM machine. Finally, a prototype of U-core DFLSFPMM is manufactured and tested to validate the analysis. |
| first_indexed | 2024-12-16T16:53:55Z |
| format | Article |
| id | doaj.art-c998123e48604f17a7c5499f9d39ea36 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-16T16:53:55Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-c998123e48604f17a7c5499f9d39ea362022-12-21T22:23:56ZengIEEEIEEE Access2169-35362020-01-018694016941210.1109/ACCESS.2020.29863849058682Comparative Study of Novel Doubly-Fed Linear Switched Flux Permanent Magnet Machines With Different Primary StructuresLijian Wu0https://orcid.org/0000-0002-5248-9122Liu Zhang1https://orcid.org/0000-0003-0166-9729Jiabei Zhu2https://orcid.org/0000-0003-3270-1154Qinfen Lu3https://orcid.org/0000-0002-3452-5564Youtong Fang4https://orcid.org/0000-0002-8521-4184College of Electrical Engineering, Zhejiang University, Hangzhou, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou, ChinaTo enhance the thrust force density and move a part of copper loss from the primary to the secondary of linear switched flux permanent magnet machines (LSFPMMs), this paper proposes a novel kind of doubly-fed LSFPMMs (DFLSFPMMs) by adding another set of armature winding on the secondary of LSFPMMs. The design and working principles of the new winding are analyzed first. It is found that the optimal coil pitch depends on the primary structure. Then, the parameters of DFLSFPMMs with U-core, C-core, E-core, and multi-tooth primary structures are globally optimized, and their electromagnetic performances are investigated by 2D finite element method. The result shows that the average thrust force of U-core DFLSFPMM is 30% higher than that of conventional LSFPMM counterpart, and it is also 23%-29% higher than those of DFLSFPMMs with other three primary structures. Besides, the U-core machine with tubular structure is analyzed for the potential application of electromagnetic shock absorbers, which shows the U-core DFLSFPMM has 10% higher peak-to-peak damping force than linear spoken-type PM machine. Finally, a prototype of U-core DFLSFPMM is manufactured and tested to validate the analysis.https://ieeexplore.ieee.org/document/9058682/Doubly-fedlinear machinepermanent magnetprimary structureswitched flux |
| spellingShingle | Lijian Wu Liu Zhang Jiabei Zhu Qinfen Lu Youtong Fang Comparative Study of Novel Doubly-Fed Linear Switched Flux Permanent Magnet Machines With Different Primary Structures IEEE Access Doubly-fed linear machine permanent magnet primary structure switched flux |
| title | Comparative Study of Novel Doubly-Fed Linear Switched Flux Permanent Magnet Machines With Different Primary Structures |
| title_full | Comparative Study of Novel Doubly-Fed Linear Switched Flux Permanent Magnet Machines With Different Primary Structures |
| title_fullStr | Comparative Study of Novel Doubly-Fed Linear Switched Flux Permanent Magnet Machines With Different Primary Structures |
| title_full_unstemmed | Comparative Study of Novel Doubly-Fed Linear Switched Flux Permanent Magnet Machines With Different Primary Structures |
| title_short | Comparative Study of Novel Doubly-Fed Linear Switched Flux Permanent Magnet Machines With Different Primary Structures |
| title_sort | comparative study of novel doubly fed linear switched flux permanent magnet machines with different primary structures |
| topic | Doubly-fed linear machine permanent magnet primary structure switched flux |
| url | https://ieeexplore.ieee.org/document/9058682/ |
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