基于重构LCC-LCC补偿拓扑的无线电能传输系统抗偏移及稳定双端输出特性研究

doi:10.19595/j.cnki.1000-6753.tces.250859

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摘要为了实现感应式无线电能传输（IPT）系统的多端口抗偏移输出,该文提出一种基于重构LCC-LCC补偿拓扑的IPT系统及参数设计方法。首先,通过建立系统等效电路模型,推导出两种实现纯阻性输入的方案,提出恒压和恒流双端口输出的参数设计方法。其次,根据磁耦合结构参数,引入两类调制因子,建立一种基于磁耦合结构参数与补偿结构参数自适应的调制策略。第一类调制因子利用互感偏移变化相对稳定的特性,构建互感偏移比与补偿结构参数的映射关系,可有效抑制由线圈偏移引起的等效互感波动;第二类调制因子通过调控等效互感参数,实现对输出增益的控制。实验结果表明,在零相位输入、负载变化300%、偏移量50%条件下,系统输出电流和输出电压的最大波动均保持在9%以内。

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关键词 ：感应电能传输, 双端口输出, 强抗偏移, 调制因子

Abstract：Dual-port inductive power transfer systems are widely used in applications such as automated guided vehicles and multi-module synchronous charging. However, misalignment between coils can cause fluctuations in the system's output. Most existing compensation topologies resist output misalignment, but all have limitations in coil design and adaptation. Based on the traditional LCC-LCC compensation topology, this paper proposes a reconfiguration method and a design method for compensation parameters to improve misalignment resistance and increase the degree of freedom in coil design.
First, two schemes for achieving the system's purely resistive input are derived by establishing its equivalent-circuit model. Then, a scheme for designing the compensation capacitor parameters based on the tempering factor is proposed, enabling synchronous two-port constant-voltage and constant-current outputs. Two types of tempering factors are identified by analyzing the parameters of the magnetically coupled structure to determine whether it exhibits the offset-resistant characteristic. The first type exploits the stable change in the mutual inductance offset to establish a mapping between the mutual inductance offset ratio and the compensation structure parameters, thereby suppressing the system's equivalent mutual inductance fluctuations. The second type controls the output gain by modulating the equivalent mutual inductance parameter, fully accounting for the influence of coil mutual inductance on the system's output fluctuations. It can be adapted to various conditioning factors by adjusting the parameters of the magnetic coupling structure, offering great flexibility and configurability. Finally, the experimental results show that the maximum fluctuations in the system output current and output voltage are kept within 9% under a zero-phase-angle input, 300% load variation, and 50% coil misalignment.
The following conclusions can be obtained. (1) By analyzing the LCC-LCC compensation topology, a parameter scheme was developed to achieve purely resistive input without additional compensation components. It enables dual-port output adaptability in multi-load-coupling scenarios, overcoming the limitations of traditional single-port topologies. (2) A single-receiver design with optimized capacitor parameters enables load-independent dual-port output. Both outputs exhibit <7% voltage fluctuation over a 300% load variation, eliminating the need for decoupling multiple coils (a drawback of conventional dual-receiver systems).
(3) Through the theoretical analysis of the dual-output gain, different tuning factor configuration strategies are adopted, which effectively improve the parameter adaptability and flexibility under multi-modal conditions.

Key words： Inductive power transfer (IPT) dual port output strong anti offset characteristics modulation factor

收稿日期: 2025-05-20

PACS:

TM724

基金资助:国家自然科学基金（52477011,52207012）和湖北省输电线路工程技术研究中心（三峡大学）开放基金课题（2024KXL08）资助项目

通讯作者: 陈龙男,1989年生,博士,副教授,硕士生导师,研究方向为磁性材料磁特性模拟、全局优化设计。E-mail: chenlong@ctgu.edu.cn

作者简介: 贲彤女,1991年生,副教授,博士生导师,研究方向为无线电能传输技术。E-mail: bentong@ctgu.edu.cn

引用本文:

贲彤, 单智超, 陈龙, 张献. 基于重构LCC-LCC补偿拓扑的无线电能传输系统抗偏移及稳定双端输出特性研究[J]. 电工技术学报, 2026, 41(8): 2521-2534. Ben Tong, Shan Zhichao, Chen Long, Zhan Xian. Research on Anti-Misalignment Characteristics and Stable Dual-Port Output Performance in Wireless Power Transfer Systems Based on Reconfigured LCC-LCC Compensation Topology. Transactions of China Electrotechnical Society, 2026, 41(8): 2521-2534.

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