Circuit Model and Characteristics of Three Resonant Wireless Power Transmission Systems

SHI Kunhong; CHENG Zhijiang; WANG Weiqing; CHEN Xingzhi; CHAI Wanteng; YANG Handi

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Circuit Model and Characteristics of Three Resonant Wireless Power Transmission Systems

更新时间：2025-12-08

- Circuit Model and Characteristics of Three Resonant Wireless Power Transmission Systems
- Vol. 47, Issue 6, Pages: 2240-2250(2021)
- 作者机构：
  
  1. 新疆大学可再生能源发电与并网技术教育部工程研究中心
  2. 上海空间电源研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 June 2021，
  
  Published：2021
- 稿件说明：
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SHI Kunhong, CHENG Zhijiang, WANG Weiqing, et al. Circuit Model and Characteristics of Three Resonant Wireless Power Transmission Systems[J]. 2021, 47(6): 2240-2250.
DOI：

SHI Kunhong, CHENG Zhijiang, WANG Weiqing, et al. Circuit Model and Characteristics of Three Resonant Wireless Power Transmission Systems[J]. 2021, 47(6): 2240-2250. DOI：

摘要

针对无线电能传输(wireless power transfer

WPT)系统处于不同负载、耦合系数和频率的运行状况进行分析

基于T型等效电路和二端口网络

得到了SS、LCL和LCC3种谐振网络的传递函数模型。将3种谐振网络的传输特性进行分析

实验结果表明3种谐振网络均为恒流输出

其中LCC网络具有随负载和耦合系数变化呈单调增的关系

有效地解决SS和LCL网络中存在传输功率过小等问题

并抑制系统处于偏谐振或低耦合状态下出现功率过载的情况。最后搭建了一台基于移相全桥(phase shift full bridge

PSFB)控制的LCC型WPT实验样机

能适应宽负载变化范围

当逆变器处于不同的移相角下均能保持零相角(zero phase angle

ZPA)的条件

使得系统具有较高的传输效率。

Abstract

In this paper

the operating conditions of the Wireless Power Transfer（WPT） system under different loads

coupling coefficients

and frequencies are analyzed. Based on the T-type equivalent circuit and two-port network

the transfer function models of SS

LCL

and LCC resonant networks are obtained. Meanwhile

the transmission properties of 3 kinds of resonant networks are analyzed. The experimental results show that the 3 kinds of resonant networks all possess the characteristics of constant current output.Among them

the LCC network has a monotonically increasing relationship with the change of load and coupling coefficient

which effectively solves the problem of too small transmission power in SS and LCL networks

and suppresses the power overload situation when the system is in a partial resonance or low coupling state. Finally

an LCC WPT experimental prototype based on phase shift full bridge（PSFB） control is built

which can adapt to the wide load variation range and maintain zero phase angle（ZPA） when the inverter is in different phase shift angles

thus the system has a high transmission efficiency.

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Related Institution

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