摘要
与传统高压感应电能传输(inductive power transfer,IPT)系统不同,高压输入-低压输出大功率IPT系统面临高降压比实现与二次侧导通损耗过大的核心挑战。为此,提出一种基于串联电容全桥逆变与同步反向耦合倍流整流的双通道IPT拓扑。该拓扑在实现1/8电压转换比的同时,可将二次侧各线圈电流降至传统全桥整流方案的1/4,显著降低松耦合变压器的设计难度及二次侧线圈导通损耗。在阐述所提拓扑工作原理的基础上,详细开展IPT系统的参数设计与实现方案研究。为验证理论分析的正确性与方案有效性,搭建原理样机并进行实验测试。结果表明,样机实现28 V恒压输出与零相位角(zero phase angle,ZPA)运行,峰值效率达95.3%、满载效率达95%,充分证明了所提拓扑及设计方案的可行性、正确性与先进性。
Unlike conventional high-voltage inductive power transfer(IPT)systems,the high-power IPT system with high-input-voltage and low-output-voltage faces core challenges in achieving a high step-down ratio and excessive secondary-side conduction losses.To address this,a dual-channel IPT topology based on series-capacitor full-bridge inverter and synchronous reverse-coupled current-doubler rectifier is proposed.The topology achieves a voltage conversion ratio of 1/8 while reducing the secondary-side coil currents to 1/4 of those in the traditional full-bridge rectification scheme,significantly alleviating the design difficulty of the loosely coupled transformer and minimizing secondary-side conduction losses.Following an elaboration of the working principle of the proposed topology,detailed research on parameter design and implementation scheme of the IPT system is conducted.To verify the correctness of theoretical analysis and effectiveness of the proposed approach,a prototype was built and experimentally tested.Results demonstrate that the prototype achieves a constant output voltage of 28 V and zero-phase-angle(ZPA)operation,with peak efficiency reaching 95.3%and full-load efficiency at 95%,fully validating the feasibility,correctness,and advancement of the proposed topology and design scheme.
作者
李小彬
马红波
韩雪
田淞铂
王宇
LI Xiaobin;MA Hongbo;HAN Xue;TIAN Songbo;WANG Yu(Electric Power Research Institute of Guizhou Power Grid Co.,Ltd.,Guiyang 550002,Guizhou,China;School of Integrated Circuits Science and Engineering,Southwest Jiaotong University,Chengdu 611756,Sichuan,China)
出处
《电力大数据》
2025年第12期1-11,共11页
Power Systems and Big Data
基金
国家自然科学基金(52377198)。
关键词
感应电能传输
串联电容全桥逆变
同步反向耦合倍流整流
高降压比
低导通损耗
低压大功率应用
inductive power transfer
series-capacitor full-bridge inverter
synchronous reverse-coupled current-doubler rectifier
high step-down ratio
low conduction loss
low-voltage high-power applications
