Wireless Power Transfer System with Constant Voltage/Constant Current Output Performance

IF 0.8 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Advanced Electromagnetics Pub Date : 2024-07-09 DOI:10.7716/aem.v13i1.2300

X. Yang, J. Tong

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引用次数: 0

Abstract

Aiming at the problem of unstable output voltage and output current caused by load fluctuation, this paper starts from the perspective of system topology and control strategy for analysis. First, the output characteristics of LCL-S (inductor-capacitor-inductor and series), LCL-P (inductor-capacitor-inductor and parallel), LCL-LCL (inductor-capacitor-inductor and inductor-capacitor-inductor), and LCL-LCC (inductor-capacitor-inductor and inductor-capacitor-capacitor) compensation topologies are analyzed. Combining the advantages of LCL-S and LCL-LCL compensation topology output characteristics, an LCL-LCL/S compensation topology is constructed, and its topology is optimized. Then the influence of parasitic resistance on the output characteristics of LCL-LCL/S compensation topology is derived. A control strategy of primary side regulation is proposed to address the issue of unstable output voltage and current caused by parasitic resistance in the system under variable loads. This method can effectively improve the stability of the output voltage and output current of the wireless power transfer system in the LCL-LCL/S compensation topology under load fluctuations. Finally, a set of experimental prototypes is built to verify the correctness of the theoretical analysis.

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具有恒压/恒流输出性能的无线电力传输系统

针对负载波动引起的输出电压和输出电流不稳定问题，本文从系统拓扑和控制策略的角度入手进行分析。首先，分析了 LCL-S（电感-电容-电感串联）、LCL-P（电感-电容-电感并联）、LCL-LCL（电感-电容-电感并联）和 LCL-LCC（电感-电容-电感并联）补偿拓扑的输出特性。结合 LCL-S 和 LCL-LCL 补偿拓扑输出特性的优点，构建了 LCL-LCL/S 补偿拓扑，并对其拓扑结构进行了优化。然后得出了寄生电阻对 LCL-LCL/S 补偿拓扑输出特性的影响。针对变负载条件下系统中寄生电阻引起的输出电压和电流不稳定问题，提出了一次侧调节控制策略。该方法能有效改善 LCL-LCL/S 补偿拓扑结构中无线功率传输系统在负载波动下输出电压和输出电流的稳定性。最后，建立了一套实验原型来验证理论分析的正确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Electromagnetics ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.40

自引率

12.50%

发文量

审稿时长

10 weeks

期刊介绍： Advanced Electromagnetics, is electronic peer-reviewed open access journal that publishes original research articles as well as review articles in all areas of electromagnetic science and engineering. The aim of the journal is to become a premier open access source of high quality research that spans the entire broad field of electromagnetics from classic to quantum electrodynamics.