Research on Uniform Magnetic Field Compensation Structure of Array Circular Coils for Wireless Power Transfer
In a wireless charging system, non-alignment has been a big problem that affects the transmission efficiency. The uniform magnetic field can ensure the charging power stability and extension of battery life in a multi-load wireless charging system, which also expands the free charging area of the lo...
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| Veröffentlicht in: | IEEE transactions on magnetics 2021-06, Vol.57 (6), p.1-5 |
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| container_title | IEEE transactions on magnetics |
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| creator | Zhang, Cun Wang, Wei Xu, Chenjin Yang, Jingyu |
| description | In a wireless charging system, non-alignment has been a big problem that affects the transmission efficiency. The uniform magnetic field can ensure the charging power stability and extension of battery life in a multi-load wireless charging system, which also expands the free charging area of the loads. In this article, the array circular coils of wireless power transfer (WPT) with a compensation structure have been proposed, which can be obtained by analyzing the magnetic field trajectory of the elementary unit of the array coils. Larger scale of the uniform magnetic field could be expended by the joint of several elementary units. The correctness and validity of the structure are verified by theoretical derivation and finite element simulation. Besides, the compensation method could be used for any forms of array coils. |
| doi_str_mv | 10.1109/TMAG.2021.3065413 |
| format | Article |
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The uniform magnetic field can ensure the charging power stability and extension of battery life in a multi-load wireless charging system, which also expands the free charging area of the loads. In this article, the array circular coils of wireless power transfer (WPT) with a compensation structure have been proposed, which can be obtained by analyzing the magnetic field trajectory of the elementary unit of the array coils. Larger scale of the uniform magnetic field could be expended by the joint of several elementary units. The correctness and validity of the structure are verified by theoretical derivation and finite element simulation. Besides, the compensation method could be used for any forms of array coils.</description><subject>Array coils</subject><subject>Arrays</subject><subject>Coils</subject><subject>Compensation</subject><subject>compensation structure</subject><subject>Electrons</subject><subject>Energy consumption</subject><subject>Finite element analysis</subject><subject>Finite element method</subject><subject>Inductive charging</subject><subject>Magnetic fields</subject><subject>Magnetism</subject><subject>Shape</subject><subject>Transmission efficiency</subject><subject>uniform magnetic field</subject><subject>Wireless communication</subject><subject>wireless power transfer (WPT)</subject><subject>Wireless power transmission</subject><subject>Wires</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kEtLw0AUhQdRsFZ_gLgZcJ06ryQzy1JsFVoUjbgMk-SOTsmj3kmQ_ntTWlxdDnznXPgIueVsxjkzD9lmvpoJJvhMsiRWXJ6RCTeKR4wl5pxMGOM6MipRl-QqhO0YVczZhDRvEMBi-U27ln603nXY0I39aqH3JV16qCu66JodtMH2fmTeexzKfkCgnaNzRLunC4_lUFscQV8HOk7QT49QQwj0tfsFpBnaNjjAa3LhbB3g5nSnJFs-ZounaP2yel7M11EpY9NHUrmqTONSQsFTp7QtEqGZM1zpKhagnWaFc8wKzRMNLBEu5apSMtayqGwip-T-OLvD7meA0OfbbsB2_JiLWGijJEsPFD9SJXYhILh8h76xuM85yw9S84PU_CA1P0kdO3fHjgeAf97IVJlEyD8tk3OT</recordid><startdate>20210601</startdate><enddate>20210601</enddate><creator>Zhang, Cun</creator><creator>Wang, Wei</creator><creator>Xu, Chenjin</creator><creator>Yang, Jingyu</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The uniform magnetic field can ensure the charging power stability and extension of battery life in a multi-load wireless charging system, which also expands the free charging area of the loads. In this article, the array circular coils of wireless power transfer (WPT) with a compensation structure have been proposed, which can be obtained by analyzing the magnetic field trajectory of the elementary unit of the array coils. Larger scale of the uniform magnetic field could be expended by the joint of several elementary units. The correctness and validity of the structure are verified by theoretical derivation and finite element simulation. 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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Array coils Arrays Coils Compensation compensation structure Electrons Energy consumption Finite element analysis Finite element method Inductive charging Magnetic fields Magnetism Shape Transmission efficiency uniform magnetic field Wireless communication wireless power transfer (WPT) Wireless power transmission Wires |
| title | Research on Uniform Magnetic Field Compensation Structure of Array Circular Coils for Wireless Power Transfer |
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