Analytical modeling for rotor eccentricity solution in wind power generator with bread loaf PMs
This paper presents a novel analytical solution for the magnetic fields of large permanent magnet (PM) wind generator with bread loaf PMs under normal and eccentricity conditions. To simplify the calculation, the generator is first approximately modeled in the Cartesian coordinate, and then the brea...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484723006935 |
| _version_ | 1797688412019359744 |
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| author | Zhen Zhao Xiaodong Zhang Xiaoji Huai Guangwei Liu |
| author_facet | Zhen Zhao Xiaodong Zhang Xiaoji Huai Guangwei Liu |
| author_sort | Zhen Zhao |
| collection | DOAJ |
| description | This paper presents a novel analytical solution for the magnetic fields of large permanent magnet (PM) wind generator with bread loaf PMs under normal and eccentricity conditions. To simplify the calculation, the generator is first approximately modeled in the Cartesian coordinate, and then the bread loaf PMs are equivalently considered by pairs of coils so that their effects can be expressed by mathematic equations. By applying the Fourier separation method, with the boundary and interface conditions, the magnetic fields in the calculation regions can be obtained by solving system equations. Afterward, the rotor eccentricity is investigated by transforming the corresponding model to a new orthogonal coordinate system by using a conformal mapping technique. Numerical examples validate the proposed method and the calculated results have a satisfactory agreement with the finite element analysis. The established model in this paper has a significant value for modeling large PM wind power generators, and the calculation time is deduced remarkably. |
| first_indexed | 2024-03-12T01:30:34Z |
| format | Article |
| id | doaj.art-b1d9a717787d46fa93e98dad94393b65 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-12T01:30:34Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-b1d9a717787d46fa93e98dad94393b652023-09-12T04:15:59ZengElsevierEnergy Reports2352-48472023-09-019372380Analytical modeling for rotor eccentricity solution in wind power generator with bread loaf PMsZhen Zhao0Xiaodong Zhang1Xiaoji Huai2Guangwei Liu3School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China; Jiangsu CRRC Electric Co., LTD, Yancheng 224100, China; Corresponding author at: School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China.School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaCRRC Zhuzhou Electric Co., LTD, Zhuzhou 412000, ChinaSchool of Electrical Engineering, Shenyang University of Technology, Shenyang 110000, ChinaThis paper presents a novel analytical solution for the magnetic fields of large permanent magnet (PM) wind generator with bread loaf PMs under normal and eccentricity conditions. To simplify the calculation, the generator is first approximately modeled in the Cartesian coordinate, and then the bread loaf PMs are equivalently considered by pairs of coils so that their effects can be expressed by mathematic equations. By applying the Fourier separation method, with the boundary and interface conditions, the magnetic fields in the calculation regions can be obtained by solving system equations. Afterward, the rotor eccentricity is investigated by transforming the corresponding model to a new orthogonal coordinate system by using a conformal mapping technique. Numerical examples validate the proposed method and the calculated results have a satisfactory agreement with the finite element analysis. The established model in this paper has a significant value for modeling large PM wind power generators, and the calculation time is deduced remarkably.http://www.sciencedirect.com/science/article/pii/S2352484723006935Analytical modelMagnetic fieldWind power generatorBread loaf permanent magnets (PMs)Rotor eccentricity |
| spellingShingle | Zhen Zhao Xiaodong Zhang Xiaoji Huai Guangwei Liu Analytical modeling for rotor eccentricity solution in wind power generator with bread loaf PMs Energy Reports Analytical model Magnetic field Wind power generator Bread loaf permanent magnets (PMs) Rotor eccentricity |
| title | Analytical modeling for rotor eccentricity solution in wind power generator with bread loaf PMs |
| title_full | Analytical modeling for rotor eccentricity solution in wind power generator with bread loaf PMs |
| title_fullStr | Analytical modeling for rotor eccentricity solution in wind power generator with bread loaf PMs |
| title_full_unstemmed | Analytical modeling for rotor eccentricity solution in wind power generator with bread loaf PMs |
| title_short | Analytical modeling for rotor eccentricity solution in wind power generator with bread loaf PMs |
| title_sort | analytical modeling for rotor eccentricity solution in wind power generator with bread loaf pms |
| topic | Analytical model Magnetic field Wind power generator Bread loaf permanent magnets (PMs) Rotor eccentricity |
| url | http://www.sciencedirect.com/science/article/pii/S2352484723006935 |
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