Calculating the external magnetic field from permanent magnets in permanent-magnet motors-an alternative method
We present an alternative method for calculating the magnetic field from a set of permanent magnets in a permanent-magnet motor. The method uses a cylindrical coordinate system to model the geometry of the structure enclosing the magnets. A Fourier series expansion yields an alternative to the more...
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| Veröffentlicht in: | IEEE transactions on magnetics 2004-09, Vol.40 (5), p.3278-3285 |
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| container_end_page | 3285 |
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| container_title | IEEE transactions on magnetics |
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| creator | Selvaggi, J.P. Salon, S. O-Mun Kwon Chari, M.V.K. |
| description | We present an alternative method for calculating the magnetic field from a set of permanent magnets in a permanent-magnet motor. The method uses a cylindrical coordinate system to model the geometry of the structure enclosing the magnets. A Fourier series expansion yields an alternative to the more familiar multipole expansion given in spherical coordinates. The expansion is developed by using Green's function in cylindrical coordinates. A technique called charge simulation allows computation of an equivalent point charge distribution. Finally, Coulomb's law is applied to express the magnetic scalar potential in a mathematically tractable form. |
| doi_str_mv | 10.1109/TMAG.2004.831653 |
| format | Article |
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The method uses a cylindrical coordinate system to model the geometry of the structure enclosing the magnets. A Fourier series expansion yields an alternative to the more familiar multipole expansion given in spherical coordinates. The expansion is developed by using Green's function in cylindrical coordinates. A technique called charge simulation allows computation of an equivalent point charge distribution. Finally, Coulomb's law is applied to express the magnetic scalar potential in a mathematically tractable form.</description><subject>Charge simulation</subject><subject>Computational modeling</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Cylindrical coordinates</subject><subject>Distributed computing</subject><subject>Equivalence</subject><subject>Exact sciences and technology</subject><subject>Fourier series</subject><subject>Geometry</subject><subject>History</subject><subject>Magnetic fields</subject><subject>Magnetic properties and materials</subject><subject>Magnetism</subject><subject>Mathematical models</subject><subject>Motors</subject><subject>Permanent magnet motors</subject><subject>Permanent magnets</subject><subject>Physics</subject><subject>Scalars</subject><subject>Solid modeling</subject><subject>Toroidal magnetic fields</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kc1r3DAQxUVJoJtN74VeRKGhF2_0YcvSMSxJGkjJJT0bWR4lCrK1lbQl-e8rxwsLPfQkNPObx8x7CH2mZEMpUZePP69uN4yQeiM5FQ3_gFZU1bQiRKgTtCKEykrVov6IzlJ6Kd-6oWSFwlZ7s_c6u-kJ52fA8JohTtrjUT9NkJ3B1oEfsI1hxDuIo55gyoduwm46FquliMeQQ0yVnrD272LZ_QE8Qn4Owzk6tdon-HR41-jXzfXj9kd1_3B7t726rwyXLFc1t1wMvai1UiC0bQcqGDNKyb7pBaE9AOi-7_WgrKRGsqZVDVWgGmZNK1u-RheL7i6G33tIuRtdMuB92TTsU8cko0LyGfz-X5ASTnmxi9UF_foP-hL2s1epk1LJYnTxfY3IApkYUopgu110o45vRambk-rmpLo5qW5Jqox8O-jqZLS3UU_GpeOcoFSydl71y8K5cv2xzXnZsOV_AfwPnXo</recordid><startdate>20040901</startdate><enddate>20040901</enddate><creator>Selvaggi, J.P.</creator><creator>Salon, S.</creator><creator>O-Mun Kwon</creator><creator>Chari, M.V.K.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on magnetics, 2004-09, Vol.40 (5), p.3278-3285 |
| issn | 0018-9464 1941-0069 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Charge simulation Computational modeling Condensed matter: electronic structure, electrical, magnetic, and optical properties Cylindrical coordinates Distributed computing Equivalence Exact sciences and technology Fourier series Geometry History Magnetic fields Magnetic properties and materials Magnetism Mathematical models Motors Permanent magnet motors Permanent magnets Physics Scalars Solid modeling Toroidal magnetic fields |
| title | Calculating the external magnetic field from permanent magnets in permanent-magnet motors-an alternative method |
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