Influence of asymmetric-paths winding on electromagnetic force of variable speed pump storage generator-motor
Stator asymmetric-paths winding of variable speed pump storage (VSPS) generator-motor can solve the problem of mismatch of unit speed, capacity and outlet voltage. However, different winding connection schemes will lead to the change of magnetomotive force (MMF) asymmetry of each branch, and then af...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123024000665 |
| _version_ | 1797247756881887232 |
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| author | Weifu Lu Zhonghua Gui Jinbing Ni Shuyang Xu |
| author_facet | Weifu Lu Zhonghua Gui Jinbing Ni Shuyang Xu |
| author_sort | Weifu Lu |
| collection | DOAJ |
| description | Stator asymmetric-paths winding of variable speed pump storage (VSPS) generator-motor can solve the problem of mismatch of unit speed, capacity and outlet voltage. However, different winding connection schemes will lead to the change of magnetomotive force (MMF) asymmetry of each branch, and then affect the electromagnetic force of generator-motor. In order to explore the effect of this winding type on the electromagnetic force, stator asymmetric-paths winding's MMF and electromagnetic force of 336 MW VSPS generator-motor is derived. Waveforms and harmonic contents of the stator asymmetric-paths winding MMF of the equal-pitch and unequal-pitch schemes are analyzed. Under the consideration constraints of factors such as minimizing MMF asymmetry and electromagnetic vibration, a reasonable asymmetric-paths winding scheme with unequal pitch is determined It is concluded that asymmetric-paths winding scheme with pitch of 14-15-16 can effectively weaken the low-order MMF harmonics and reduce the electromagnetic force under the limitation of asymmetric-paths winding form. The finite element model of VSPS generator-motor is further developed, and the electromagnetic force amplitude and spatial and temporal distribution characteristics under 6 winding schemes are calculated to verify the accuracy of the calculation model. The results of the study can provide technical support for the development of localized VSPS generator-motor. |
| first_indexed | 2024-03-08T06:54:13Z |
| format | Article |
| id | doaj.art-a797ada46d854b728147e44f3d55cfaf |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-04-24T20:03:45Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-a797ada46d854b728147e44f3d55cfaf2024-03-24T07:00:46ZengElsevierResults in Engineering2590-12302024-03-0121101813Influence of asymmetric-paths winding on electromagnetic force of variable speed pump storage generator-motorWeifu Lu0Zhonghua Gui1Jinbing Ni2Shuyang Xu3Pumped-storage Technological & Economic Research Institute, State Grid Xinyuan Co. Ltd, Beijing, 100761, ChinaPumped-storage Technological & Economic Research Institute, State Grid Xinyuan Co. Ltd, Beijing, 100761, ChinaPumped-storage Technological & Economic Research Institute, State Grid Xinyuan Co. Ltd, Beijing, 100761, ChinaSchool of Electrical and Electronic Engineering North China Electric Power University, Changping District, Beijing, 102206, China; Corresponding author.Stator asymmetric-paths winding of variable speed pump storage (VSPS) generator-motor can solve the problem of mismatch of unit speed, capacity and outlet voltage. However, different winding connection schemes will lead to the change of magnetomotive force (MMF) asymmetry of each branch, and then affect the electromagnetic force of generator-motor. In order to explore the effect of this winding type on the electromagnetic force, stator asymmetric-paths winding's MMF and electromagnetic force of 336 MW VSPS generator-motor is derived. Waveforms and harmonic contents of the stator asymmetric-paths winding MMF of the equal-pitch and unequal-pitch schemes are analyzed. Under the consideration constraints of factors such as minimizing MMF asymmetry and electromagnetic vibration, a reasonable asymmetric-paths winding scheme with unequal pitch is determined It is concluded that asymmetric-paths winding scheme with pitch of 14-15-16 can effectively weaken the low-order MMF harmonics and reduce the electromagnetic force under the limitation of asymmetric-paths winding form. The finite element model of VSPS generator-motor is further developed, and the electromagnetic force amplitude and spatial and temporal distribution characteristics under 6 winding schemes are calculated to verify the accuracy of the calculation model. The results of the study can provide technical support for the development of localized VSPS generator-motor.http://www.sciencedirect.com/science/article/pii/S2590123024000665Variable speed pump storage (VSPS) generator-motorAsymmetric-paths windingMagneto motive force (MMF)Electromagnetic forceAnalytical solutionFinite element method (FEM) |
| spellingShingle | Weifu Lu Zhonghua Gui Jinbing Ni Shuyang Xu Influence of asymmetric-paths winding on electromagnetic force of variable speed pump storage generator-motor Results in Engineering Variable speed pump storage (VSPS) generator-motor Asymmetric-paths winding Magneto motive force (MMF) Electromagnetic force Analytical solution Finite element method (FEM) |
| title | Influence of asymmetric-paths winding on electromagnetic force of variable speed pump storage generator-motor |
| title_full | Influence of asymmetric-paths winding on electromagnetic force of variable speed pump storage generator-motor |
| title_fullStr | Influence of asymmetric-paths winding on electromagnetic force of variable speed pump storage generator-motor |
| title_full_unstemmed | Influence of asymmetric-paths winding on electromagnetic force of variable speed pump storage generator-motor |
| title_short | Influence of asymmetric-paths winding on electromagnetic force of variable speed pump storage generator-motor |
| title_sort | influence of asymmetric paths winding on electromagnetic force of variable speed pump storage generator motor |
| topic | Variable speed pump storage (VSPS) generator-motor Asymmetric-paths winding Magneto motive force (MMF) Electromagnetic force Analytical solution Finite element method (FEM) |
| url | http://www.sciencedirect.com/science/article/pii/S2590123024000665 |
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