中国电机工程学报2024，Vol.44Issue(22)：9027-9038,中插28,13.DOI:10.13334/j.0258-8013.pcsee.231222
基于平衡阻抗的MC-WPT系统传导干扰抑制方法
Conduction Interference Suppression Method for MC-WPT System Based on Balanced Impedance
摘要
Abstract
Suppressing electromagnetic interference(EMI)to improve electromagnetic compatibility is an urgent problem that must be solved in the application of magnetic-coupled wireless power transfer systems.This paper takes the traditional LCC-S type magnetic coupled wireless power transfer(MC-WPT)system as the research object.A fusion topology of EMI filters and harmonic compensation networks was proposed aiming at conducted interference caused by impedance imbalance and parasitic parameters.This paper analyzes the generation mechanism and transmission channel characteristics of conduction interference in traditional MC-WPT systems,provides a parameter design method for fusion topology,and verifies the effectiveness of the proposed topology in EMI suppression through experiments.On the constructed 85 kHz/500 W experimental system,the common mode interference current of the topology designed in this paper is reduced by 35.6 dB compared to the traditional LCC-S topology,and the differential mode interference current at specific frequency points is reduced by 23.6 dB.The common mode and differential mode conducted interference on the input side have been reduced by approximately 30 dB and 10 dB,respectively.The fusion topology and its design method proposed in this paper can also be applied to other MC-WPT systems with different resonant networks.关键词
磁耦合无线电能传输系统/抑制/传导干扰/电磁干扰/阻抗平衡Key words
magnetic coupled wireless power transfer(MC-WPT)system/suppression/conducted interference/electromagnetic interference(EMI)/impedance balance分类
信息技术与安全科学引用本文复制引用
邓棚亓,唐春森,苏玉刚,戴欣,刘哲..基于平衡阻抗的MC-WPT系统传导干扰抑制方法[J].中国电机工程学报,2024,44(22):9027-9038,中插28,13.基金项目
国家自然科学基金(面上项目)(52277002). Project Supported by National Natural Science Foundation of China(General Program)(52277002). （面上项目）
