基于RLC电路非谐振频率工作点的磁感应耦合无线电能传输系统  

An Inductive Power Transfer Systems Based on RLC Non-resonant Operating Frequency State of RLC Circuit

作　　者：王世伟 王首刚 赵立棣 裴智 李客频 吕霞付[1] WANG Shi-Wei;WANG Shou-gang;ZHAO Li-di;PEI Zhi;LI Ke-pin;LYU Xia-fu(College of Automation,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Huachen Xinyuan Chongqing Automobile Co.,Ltd.,Chongqing 401329,China)

机构地区：[1]重庆邮电大学自动化学院,重庆400065 [2]华晨鑫源重庆汽车有限公司,重庆401329

出　　处：《电力学报》2020年第6期498-506,共9页Journal of Electric Power

基　　金：重庆市技术创新与应用发展专项(cstc2019jscx-zdztzxX0051)。

摘　　要：为了在感应式无线电能传输系统中能实现大功率远距离电能传输,常在接收端和发送端之间采用谐振强耦合方式进行能量传递。应用RLC电路的非谐振频率工作点可以比谐振频率工作点产生更高电压的原理,提出了一种基于非谐振频率工作点的感应耦合无线电能传输系统。设计了非谐振频率传能系统电路拓扑,通过分析该电路模型提出了非谐振频率工作点,给出了非谐振频率传能系统的无功补偿方案。通过电路仿真和搭建的非谐振频率工作点无线电能传输实验系统,验证了该方法的有效性。测试结果显示在相同传输条件下,传能系统在非谐振频率工作时比谐振态工作时的发送功率高2%。In inductive power transfer systems(IPTS),in order to achieve high-efficiency and long-distance power transmission,a resonance strong coupling method is often used for energy transfer between the primary side and secondary side.Inspired by the fact that inductor or capacitor in RLC circuit generates the highest voltages at non-resonant state,this paper proposes an inductive power transfer system based on non-resonant operating frequency.In order to verify the effectiveness of the IPTS,a circuit topology of the non-resonant frequency power transfer system is designed.By analyzing the circuit model and its non-resonant operating frequency point,a reactive power compensation scheme for the non-resonant state power transfer system is given.Finally,a LTspice simulation and a non-resonant operating frequency transfer power experimental system is built to verified the effectiveness of this method,and test results shows that the deliver power at non-resonant state is higher 2%maximum than that at resonance.

关 键 词：无线电能传输 RLC电路 非谐振频率 工作点 

分 类 号：TM724[电气工程—电力系统及自动化]