基于D.D.D.型松耦合变压器的无线电能传输系统研究  

Research on Wireless Power Transmission System Based on D.D.D. Loosely-coupled Transformer

作　　者：王鹏程 潘立刚 王懿杰[3] WANG Pengcheng;PAN Ligang;WANG Yijie(State Grid Hangzhou Xiaoshan Power Supply Company,Hangzhou 311215,Zhejiang,China;Hangzhou Xinmei Power Equipment Manufacturing Co.,Ltd.,Hangzhou 311215,Zhejiang,China;School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150000,Heilongjiang,China)

机构地区：[1]国网浙江省杭州市萧山区供电有限公司,浙江杭州311215 [2]杭州欣美成套电气设备制造有限公司,浙江杭州311215 [3]哈尔滨工业大学电气工程及自动化学院,黑龙江哈尔滨150000

出　　处：《电气传动》2023年第10期29-35,共7页Electric Drive

摘　　要：无线电能传输(WPT)技术克服了传统有线输电过程对输电场地条件、维护便利性以及安全性的严苛要求,具有广泛的应用场景。在WPT技术中,原副边线圈间的抗偏移特性直接影响着系统电能传输的质量、效率及可靠性。通过对松耦合变压器进行优化,设计相对应的补偿网络以增强系统的抗偏移特性及输出稳定性。所设计的D.D.D.型松耦合变压器具有较强的抗偏移能力,并且具有良好的磁屏蔽特性。在传统变压器等效模型基础上,考虑漏磁通的影响,提出了对称型并串联/串并联补偿拓扑结构。通过调频控制,维持系统输入阻抗角为零,实现系统高效稳定的输出。最后,为了验证理论分析,搭建了基于D.D.D.型松耦合变压器的250 W实验平台,系统效率达到了88%。The emergence of wireless power transmission(WPT)technology overcomes the strict requirements of traditional wire transmission process on transmission site conditions,maintenance convenience and security,which has a wide range of application scenarios.In the WPT technology,the misalignment tolerance characteristics between the primary and secondary coils directly affect the quality,efficiency and reliability of the power transmission.The loosely-coupled transformer was optimized and the corresponding compensation network was designed to enhance the misalignment tolerance characteristics and output stability.The D.D.D.loosely-coupled transformer designed has strong misalignment tolerance ability and good magnetic shielding characteristics.Considering the influence of magnetic flux leakage,a symmetric PS/SP topology was proposed based on the traditional transformer equivalent model.Through frequency modulation control,the input impedance angle of the system was maintained to zero,and the high-efficiency and stable output of the system was realized.Finally,in order to verify the theoretical analysis,a 250 W experimental platform based on the D.D.D.loosely-coupled transformer was built,and the system efficiency reached 88%.

关 键 词：无线电能传输 松耦合变压器 抗偏移 PS/SP补偿拓扑 

分 类 号：TM[电气工程]