电工技术学报  2018, Vol. 33 Issue (14): 3177-3184    DOI: 10.19595/j.cnki.1000-6753.tces.171530
电工理论与新技术 |
过耦合无线电能传输功率降低机理与提高方法
李阳, 董维豪, 杨庆新, 张诚, 刘柳
天津工业大学天津市电工电能新技术重点实验室 天津 300387
Mechanism of Power Decreasing and Improvement Method for Wireless Power Transfer System in Over Coupled Regime
Li Yang, Dong Weihao, Yang Qingxin, Zhang Cheng, Liu Liu
Tianjin Key Laboratory of Advanced Electrical Engineering and Energy Technology Tianjin Polytechnic University Tianjin 300387 China
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摘要 针对磁耦合谐振式无线电能传输系统在过耦合区负载接收功率降低的问题,对无线电能传输模型进行理论分析,得到负载接收功率与输入阻抗定量关系,并根据功率降低机理提出解决功率降低问题的根本措施。为验证功率降低机理理论分析的正确性和功率提高方法的有效性,最后进行建模仿真和实验验证。理论分析、建模仿真和实验验证具有较好的一致性,因而建模仿真和实验实现了对理论分析和结论的验证。
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关键词 无线电能传输磁耦合谐振功率降低阻抗失配    
Abstract:In order to solve the problem that the received power of load decreases with distance decreasing in wireless power transfer system via coupled magnetic resonances in the over coupled regime, this paper presents a new model that yields critical insight into the design of practical systems. The quantitative relationship between the received power of load and input impedance is introduced to improve the transfer power ultimately. Finally, simulations and experiments were implemented to verify the correctness of the mechanism and the effectiveness of the method. The results of simulations and experiments were well consistent with the theoretical analysis.
Key wordsWireless power transfer    coupled magnetic resonances    power decreasing    impedance mismatch   
收稿日期: 2017-11-16      出版日期: 2018-07-27
PACS: TM72  
基金资助:国家自然科学基金(51577133、51477117、51607121),天津市应用基础及前沿技术研究计划(自然科学基金)联合资助一般项目(15JCYBJC46700)、国家重点研发计划子课题(2017YFB1201003-022),天津市高等学校创新团队培养计划(TD13-5040)和天津市科技计划(16PTSYJC00080)资助项目
通讯作者: 杨庆新 男,1961年生,博士,教授,研究方向为工程电磁场与磁技术。E-mail: qxyang@tjpu.edu.cn   
作者简介: 李 阳 男,1979年生,博士,副教授,研究方向为无线电能传输理论及其应用。E-mail: liyang@tjpu.edu.cn
引用本文:   
李阳, 董维豪, 杨庆新, 张诚, 刘柳. 过耦合无线电能传输功率降低机理与提高方法[J]. 电工技术学报, 2018, 33(14): 3177-3184. Li Yang, Dong Weihao, Yang Qingxin, Zhang Cheng, Liu Liu. Mechanism of Power Decreasing and Improvement Method for Wireless Power Transfer System in Over Coupled Regime. Transactions of China Electrotechnical Society, 2018, 33(14): 3177-3184.
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