摘要
针对磁谐振无线电能传输系统的四线圈结构,将其分解为三部分,不仅可简化系统传输效率和输出功率的分析,而且更能体现电源线圈和负载线圈的阻抗匹配作用。通过分析发现,电源线圈可以调节系统输入阻抗,负载线圈可以调节接收线圈等效负载电阻。因此相比于两线圈结构,四线圈结构对于不同的高频激励源和负载具有更好的适应性,容易使系统工作在较高效率的状态,并且可较灵活地调节系统输出功率。设计制作了一台试验样机,验证了前述分析的正确性。
The four-coil structure of wireless power transmission system via magnetic resonance can be broken down into three parts, not only simplifying the analysis of the transmission efficiency and the output power, but also better reflecting the impedance matching effect of the power coil and the load coil. The analysis shows that the power coil can adjust the input impedance of the system and the load coil can adjust the equivalent load resistance of the receiving coil. Therefore, compared to the two-coil structure, the four-coil structure has better adaptability for different high-frequency power supply and load, making it easy to operate at higher efficiency and more flexible to adjust the output power. A prototype was designed and created, and the correctness of the aforementioned analyses was verified.
出处
《电器与能效管理技术》
2015年第6期1-5,共5页
Electrical & Energy Management Technology
基金
国家自然科学基金资助项目(#51207025)
福建省高校杰青资助项目(#JA13028)
关键词
无线电能传输
磁谐振
四线圈结构
阻抗匹配
wireless power transfer
magnetic resonance
four-coil structure
impedance matching
作者简介
卢文成（1991-），男，硕士研究生，研究方向为无线电能传输技术。
丘小辉（1989-），男，硕士研究生，研究方向为无线电能传输技术。
毛行奎（1978-），男，副教授，博士，研究方向为电力电子高频磁技术、新能源发电技术、无线电能传输技术。
