| 引用本文: | 周念成,梁清泉,王强钢,卢伟国.基于SS型磁耦合谐振无线电能传输频带序列划分[J].电力系统保护与控制,2020,48(12):1-12.[点击复制] |
| ZHOU Niancheng,LIANG Qingquan,WANG Qianggang,LU Weiguo.Frequency band sequence allocation of magnetically coupled resonant wireless power transmission systems based on SS type[J].Power System Protection and Control,2020,48(12):1-12[点击复制] |
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| 摘要: |
| 磁耦合谐振无线电能传输(MCR-WPT)具有传递功率较大、距离适中、传递效率高等优点。针对MCR-WPT中频率资源划分尚未统一的问题，基于两线圈串联-串联(SS)模型的WPT系统，用电路模型分析WPT系统的运行特性，提出了WPT谐振频率范围划分的距离原则。使不同传递距离范围对应不同谐振频率序列，并结合改进几何均值原则对划分结果进行修正，得到修正后的谐振频率序列推荐值。同时，为增强WPT对负载变化的适应性，将谐振频率点拓展为工作频段，提出基于负载特性的工作频段确定方法。再将谐振频率序列和工作频段结合，实现了基于SS型MCR-WPT系统的频带序列划分。最后搭建实验平台验证频带序列划分结果的合理性。 |
| 关键词: 无线电能传输 磁耦合谐振 谐振频率 频带序列划分 |
| DOI：10.19783/j.cnki.pspc.190915 |
| 投稿时间：2019-07-29修订日期：2019-09-27 |
| 基金项目:国家自然科学基金项目资助(51877017) |
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| Frequency band sequence allocation of magnetically coupled resonant wireless power transmission systems based on SS type |
| ZHOU Niancheng,LIANG Qingquan,WANG Qianggang,LU Weiguo |
| (State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China) |
| Abstract: |
| Magnetically Coupled Resonant Wireless Power Transmission (MCR-WPT) has advantages of large transmission power, moderate distance, and high transmission efficiency, etc. Given that the frequency resource division in MCR-WPT has not been unified, this paper is based on the WPT system of a two-coil Series-Series (SS) model. It analyzes the operating characteristics of a WPT system using a circuit model, and proposes the distance principle of WPT resonance frequency range division, so that different transmission distance ranges correspond to different resonance frequency sequences. It combines with an improved geometric mean principle to correct segmentation results, and the recommended values of the modified resonant frequency sequence are obtained. In order to enhance the adaptability of WPT to load changes, the resonant frequency point is expanded into the working frequency band, and a working frequency band determination method based on load characteristics is proposed. Then the resonant frequency sequence is combined with the working frequency band to complete the frequency band division of the MCR-WPT system based on the SS type. Finally, an experimental platform is built to verify the rationality of the frequency band segmentation results. This work is supported by National Natural Science Foundation of China (No. 51877017). |
| Key words: wireless power transmission magnetic coupling resonance resonant frequency frequency band sequence division |
