电工技术学报2018，Vol.33Issue(12)：2742-2750,9.DOI:10.19595/j.cnki.1000-6753.tces.171358
非对称耦合线圈内阻与品质因数对传输功率与效率及其频率分裂的影响
Influence of Internal Resistance and Quality Factor on Transfer Power and Efficiency and Frequency Splitting
摘要
Abstract
Design of asymmetric coupling coils via coupled magnetic resonances is complicated in wireless power transfer (WPT), especially considering the uncertain effects of frequency split caused by the changes of asymmetric structure parameters. This issue constrains the development of the WPT technology. In this paper, the equivalent circuit model of asymmetric WPT system is established. Then the power and efficiency expressions of asymmetric coupling system are presented. Meanwhile, the influence of internal resistance and quality factor on frequency splitting is summarized. Finally, the experimental system is built to verify the theoretical analysis. The results not only prove the correctness of the proposed method, but also provide a beneficial reference for optimal control of WPT system with asymmetric coupled coil.关键词
无线电能传输/非对称耦合线圈/频率分裂/线圈内阻/品质因数Key words
Wireless power transfer (WPT)/asymmetric coupled coil/frequency splitting/coil resistance/quality factor分类
信息技术与安全科学引用本文复制引用
李阳,尹建斌,杨庆新,薛明,刘哲,张献..非对称耦合线圈内阻与品质因数对传输功率与效率及其频率分裂的影响[J].电工技术学报,2018,33(12):2742-2750,9.基金项目
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)和天津市高等学校创新团队培养计划(TD13-5040)资助项目. （51577133、51477117、51607121）
