Design and Efficiency Optimization of Multi-Tap-Transmitting-Coil-Based IPT System

IF 1.4 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Circuit Theory and Applications Pub Date : 2026-09-04 Epub Date: 2026-01-07 DOI:10.1002/cta.70310

Yue Xu, Xiaodan Liu, Ruiheng Zhang, Wentao Huang

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Abstract

To eliminate plug-in and plug-out actions in automatic power systems, a multi-tap-transmitting-coil (MTTC)-based inductive power transfer (IPT) system is proposed for efficiently supplying power to various applications that require dynamic load management. A load-power-model (LPM) is introduced to characterize the system, and the dependence of efficiency on the number of turns of the transmitting and receiving coils is analyzed in detail. The analysis shows that the system efficiency can be maximized by selecting the optimal transmitting coil turn number. The MTTC is designed to maximize efficiency for a limited number of power requirement points. Furthermore, the communication link is not required by the proposed control strategy based on LPM. Finally, a 6.6 kW prototype is experimentally demonstrated to validate the proposed efficiency optimization method. Experimental results show that when the output power is equal to (1.6 kW, 3.0 kW), the overall efficiency is increased to (89.7%, 91.1%), which is (3.8%, 0.8%) higher than that of the non-optimized system.

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基于多分接传输线圈的IPT系统设计与效率优化

为了消除自动电力系统中的插拔行为，提出了一种基于多抽头传输线圈（MTTC）的感应功率传输（IPT）系统，为需要动态负载管理的各种应用提供高效的电源。引入负载-功率模型（LPM）对系统进行表征，并详细分析了效率与发射线圈和接收线圈匝数的关系。分析表明，选择最优的发射线圈匝数可以使系统效率最大化。MTTC旨在为有限数量的电力需求点实现效率最大化。此外，基于LPM的控制策略不需要通信链路。最后，对6.6 kW的样机进行了实验验证，验证了所提出的效率优化方法。实验结果表明，当输出功率为（1.6 kW, 3.0 kW）时，总效率提高到（89.7%,91.1%），比未优化时提高了（3.8%,0.8%）。

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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.