单相矩阵式WPT系统网侧电流谐波抑制策略  

Harmonic Suppression Strategy for Grid-side Current in Single-phase Matrix Converter Based Wireless Power Transfer System

作　　者：黄珺 杨快荣 何许国 霍鹏冲 HUANG Jun;YANG Kuairong;HE Xuguo;HUO Pengchong(Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province(School of Electrical Engineering,Hebei University of Technology),Tianjin 300130,China;State Key Lab of Reliability and Intelligence of Electrical Equipment(School of Electrical Engineering,Hebei University of Technology),Tianjin 300130,China)

机构地区：[1]河北省电磁场与电器可靠性重点实验室(河北工业大学电气工程学院),天津300130 [2]省部共建电工装备可靠性与智能化国家重点实验室(河北工业大学电气工程学院),天津300130

出　　处：《电源学报》2025年第2期171-178,共8页Journal of Power Supply

基　　金：河北省自然科学基金资助项目(E2020202177)。

摘　　要：针对单相矩阵式无线电能传输MC-WPT(matrix converter based wireless power transfer)系统网侧电流谐波含量大的问题,提出1种谐波抑制调制策略,可有效降低网侧电流低次谐波含量及总谐波失真度THD(total harmonic distortion)。分析谐振槽电压电流特性,基于参数归一化方法得到2个基波分量的等效电路,进而推导出MC-WPT的数学模型。在此基础上,以消除低次谐波含量为目标,应用计算法得到接收侧H桥的优化调制波,使网侧电流低频成分仅有工频分量,从而降低网侧电流THD。最后搭建实验平台,验证所提谐波抑制调制策略的可行性与有效性。Aimed at the problem of large harmonic content of grid-side current in a single-phase matrix converter based wireless power transfer(MC-WPT)system,a harmonic suppression modulation strategy is proposed to effectively reduce the low-order harmonic content and total harmonic distortion(THD)of grid-side current.The voltage and current characteristics of resonant tank are analyzed,the equivalent circuits at two fundamental frequencies are obtained based on the parameter normalization method,and the mathematical model of MC-WPT system is derived accordingly.On this basis,with an objective of eliminating the low-order harmonic content,the optimal modulation wave of the H-bridge on the receiving side is obtained by using the calculation method,so that the low-frequency component of grid-side current only contains the line frequency component,thereby reducing the THD of grid-side current.Finally,an experimental platform was built to verify the feasibility and effectiveness of the proposed harmonic suppression modulation strategy.

关 键 词：无线电能传输 矩阵变换器 总谐波失真 谐波抑制调制策略 网侧电流 

分 类 号：TM724[电气工程—电力系统及自动化]