Analysis and experimental verification of two types of three‐coil MCR‐WPT system with constant current and constant voltage characteristics

IF 1.8 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Circuit Theory and Applications Pub Date : 2024-08-15 DOI:10.1002/cta.4226

Haichao Chen, Pengfei Zhang, Lijiao Gong, Tong Yang, Xin Xin Ma, Bo Huang

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引用次数: 0

Abstract

In order to achieve an optimized design of a three‐coil wireless power transfer (WPT) system with constant voltage (CV) and constant current (CC) output characteristics, meeting the power supply demands of rechargeable loads for CV/CC, this paper conducts an in‐depth research on the three‐coil magnetically coupled resonance (MCR) WPT system. A novel method for CV/CC output switching under the MCR‐WPT system is proposed. Firstly, a coupled inductance model is established, and the compensation parameter expressions of both single‐transmitter single‐receiver (STSR) three‐coil WPT system with relay coil and double‐transmitter single‐receiver (DTSR) three‐coil WPT system are derived. A compensation network parameter design method to achieve zero phase angle (ZPA) condition is proposed. This proposed three‐coil WPT system can achieve CV/CC output switching by a single alternating current (AC) switch. The transmission characteristics of these two MCR‐WPT systems are analyzed, and the transmission efficiency and lateral offset capability of the systems are compared. Experimental results demonstrate stable energy transfer of the system, validating the correctness and effectiveness of the proposed system's CV/CC output characteristics and parameter design methods. The results indicate that the proposed system can achieve stable CV/CC output.

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具有恒流和恒压特性的两种三线圈 MCR-WPT 系统的分析和实验验证

为了实现具有恒压（CV）和恒流（CC）输出特性的三线圈无线电力传输（WPT）系统的优化设计，满足可充电负载对 CV/CC 的供电需求，本文对三线圈磁耦合谐振（MCR）WPT 系统进行了深入研究。本文提出了一种在 MCR-WPT 系统下实现 CV/CC 输出切换的新方法。首先，建立了耦合电感模型，并推导出带中继线圈的单发射机单接收机（STSR）三线圈 WPT 系统和双发射机单接收机（DTSR）三线圈 WPT 系统的补偿参数表达式。提出了实现零相位角 (ZPA) 条件的补偿网络参数设计方法。这种拟议的三线圈 WPT 系统可通过单个交流电 (AC) 开关实现 CV/CC 输出切换。分析了这两种 MCR-WPT 系统的传输特性，并比较了系统的传输效率和横向偏移能力。实验结果表明系统能量传输稳定，验证了拟议系统的 CV/CC 输出特性和参数设计方法的正确性和有效性。结果表明，建议的系统可以实现稳定的 CV/CC 输出。

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

International Journal of Circuit Theory and Applications 工程技术-工程：电子与电气

CiteScore

3.60

自引率

34.80%

发文量

277

审稿时长

4.5 months

期刊介绍： The scope of the Journal comprises all aspects of the theory and design of analog and digital circuits together with the application of the ideas and techniques of circuit theory in other fields of science and engineering. Examples of the areas covered include: Fundamental Circuit Theory together with its mathematical and computational aspects; Circuit modeling of devices; Synthesis and design of filters and active circuits; Neural networks; Nonlinear and chaotic circuits; Signal processing and VLSI; Distributed, switched and digital circuits; Power electronics; Solid state devices. Contributions to CAD and simulation are welcome.