Effect of Pole Number on Generator End Winding Electromagnetic Force and Mechanical Response before and after RISC
This paper comparatively studies on the end winding electromagnetic force and mechanical response for generators with different numbers of poles. The analytical expression of the end winding electromagnetic force is derived under the rotor winding interturn short circuit (RISC) considering the pole...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2021/4375415 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850232030763155456 |
|---|---|
| author | Hong-Chun Jiang Yu-Ling He Gui-Ji Tang |
| author_facet | Hong-Chun Jiang Yu-Ling He Gui-Ji Tang |
| author_sort | Hong-Chun Jiang |
| collection | DOAJ |
| description | This paper comparatively studies on the end winding electromagnetic force and mechanical response for generators with different numbers of poles. The analytical expression of the end winding electromagnetic force is derived under the rotor winding interturn short circuit (RISC) considering the pole number. Meanwhile, the three-dimensional transient finite element simulation is carried on two generators with one-pair poles and three-pair poles. Then, the frequency composition and amplitude variation characteristics of the radial, axial, and tangential electromagnetic forces are analyzed. Further, the maximum stress and deformation on the end winding are calculated and the similarity and difference of the coil failure law are obtained for two kinds of generators. It is found that RISC will bring odd harmonics to electromagnetic force for one-pair pole generators but it will bring odd and fraction harmonics for multipair pole generators. Moreover, the max mechanical response under RISC will decrease for one-pair pole generators but it will increase for multipair pole generators. |
| format | Article |
| id | doaj-art-03e84ed4732f46fa9414b09fac8bfd21 |
| institution | OA Journals |
| issn | 1542-3034 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-03e84ed4732f46fa9414b09fac8bfd212025-08-20T02:03:19ZengWileyInternational Journal of Rotating Machinery1542-30342021-01-01202110.1155/2021/4375415Effect of Pole Number on Generator End Winding Electromagnetic Force and Mechanical Response before and after RISCHong-Chun Jiang0Yu-Ling He1Gui-Ji Tang2Department of Mechanical Engineering and Hebei Key Laboratory of Electric Machinery and Failure PreventionDepartment of Mechanical Engineering and Hebei Key Laboratory of Electric Machinery and Failure PreventionDepartment of Mechanical Engineering and Hebei Key Laboratory of Electric Machinery and Failure PreventionThis paper comparatively studies on the end winding electromagnetic force and mechanical response for generators with different numbers of poles. The analytical expression of the end winding electromagnetic force is derived under the rotor winding interturn short circuit (RISC) considering the pole number. Meanwhile, the three-dimensional transient finite element simulation is carried on two generators with one-pair poles and three-pair poles. Then, the frequency composition and amplitude variation characteristics of the radial, axial, and tangential electromagnetic forces are analyzed. Further, the maximum stress and deformation on the end winding are calculated and the similarity and difference of the coil failure law are obtained for two kinds of generators. It is found that RISC will bring odd harmonics to electromagnetic force for one-pair pole generators but it will bring odd and fraction harmonics for multipair pole generators. Moreover, the max mechanical response under RISC will decrease for one-pair pole generators but it will increase for multipair pole generators.http://dx.doi.org/10.1155/2021/4375415 |
| spellingShingle | Hong-Chun Jiang Yu-Ling He Gui-Ji Tang Effect of Pole Number on Generator End Winding Electromagnetic Force and Mechanical Response before and after RISC International Journal of Rotating Machinery |
| title | Effect of Pole Number on Generator End Winding Electromagnetic Force and Mechanical Response before and after RISC |
| title_full | Effect of Pole Number on Generator End Winding Electromagnetic Force and Mechanical Response before and after RISC |
| title_fullStr | Effect of Pole Number on Generator End Winding Electromagnetic Force and Mechanical Response before and after RISC |
| title_full_unstemmed | Effect of Pole Number on Generator End Winding Electromagnetic Force and Mechanical Response before and after RISC |
| title_short | Effect of Pole Number on Generator End Winding Electromagnetic Force and Mechanical Response before and after RISC |
| title_sort | effect of pole number on generator end winding electromagnetic force and mechanical response before and after risc |
| url | http://dx.doi.org/10.1155/2021/4375415 |
| work_keys_str_mv | AT hongchunjiang effectofpolenumberongeneratorendwindingelectromagneticforceandmechanicalresponsebeforeandafterrisc AT yulinghe effectofpolenumberongeneratorendwindingelectromagneticforceandmechanicalresponsebeforeandafterrisc AT guijitang effectofpolenumberongeneratorendwindingelectromagneticforceandmechanicalresponsebeforeandafterrisc |