基于S/SP补偿拓扑的强抗偏移感应式无线电能传输系统  

An IPT System Based on S/SP Compensation Topology With High Misalignment Tolerance

作　　者：麦建伟 曾宪瑞 刘治钢[2] 宋鼎 谷鹏 王懿杰[1] 徐殿国[1] MAI Jianwei;ZENG Xianrui;LIU Zhigang;SONG Ding;GU Peng;WANG Yijie;XU Dianguo(School of Electrical Engineer and Automation,Harbin Institute of Technology,Harbin 150001,Heilongjiang Province,China;Beijing Spacecraft General Design Department,Haidian District,Beijing 100094,China)

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,黑龙江省哈尔滨市150001 [2]北京空间飞行器总体设计部,北京市海淀区100094

出　　处：《中国电机工程学报》2023年第4期1525-1536,共12页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51922033);台达电力电子科教发展计划(DREK2020003)。

摘　　要：针对感应式电能传输(inductive power transfer,IPT)系统偏移造成输出电压不稳定和效率低下的问题,提出一种强抗偏移的S/SP补偿IPT系统,该系统在变耦合变自感和变耦合不变自感两种情况下均能保证较小的输出电压波动和较高的传输效率。首先,基于Maxwell有限元仿真,分析罐型磁心松耦合变压器的磁通分布和磁场分布特性,总结不同方向偏移的参数变化规律。然后,提出一种提高系统抗偏移能力的S/SP补偿参数设计方法,得到相应的磁耦合机构设计准则,并结合磁仿真数据,通过数值计算方式求得系统输出波动和输入阻抗角的变化规律。最后,通过实验验证文中采用罐型磁心和新型S/SP补偿拓扑实现多方向偏移下高效率、低波动无线电能传输的可行性。在额定负载下,系统沿纵向和水平方向偏移的输出电压波动分别为2.7%和3.1%,传输效率维持在90.8%~94.3%。Aiming at the problem of unstable output voltage and low efficiency caused by the offset of inductive power transfer(IPT) systems, a novel S/SP compensation IPT system is proposed. The system remains small output voltage fluctuation and high transmission efficiency under the conditions of variable coupling variable self-inductance and variable coupling constant self-inductance. First, based on Maxwell finite element simulation, the magnetic flux distribution and magnetic field distribution of the tank core loosely coupled transformer are analyzed, and the parameter variation of offset in different directions is summarized. Then,a design method of S/SP compensation parameters is proposed to improve the misalignment tolerance capability of the system,and the corresponding transformer design criteria are obtained.Combined with the magnetic simulation data, the variations of system output fluctuation and input impedance angle are obtained by numerical calculation. Finally, experiments have verified the feasibility of the system to realize high-efficiency and low fluctuation contactless energy transmission under multi-directional offset. The output voltage fluctuations of the system offset along the longitudinal and horizontal directions are 2.7% and 3.1%, respectively, and the transmission efficiency is maintained at 90.8%~94.3%.

关 键 词：感应式无线电能传输 S/SP补偿拓扑 二端口网络 罐型磁心 抗偏移 

分 类 号：TM46[电气工程—电器]