Characteristics Analysis of Resonant Topology in Three-Phase Wireless Power Transfer Systems Considering Star-Delta and Neutral Point Connections

IF 7.2 1区工程技术 Q1 AUTOMATION & CONTROL SYSTEMS IEEE Transactions on Industrial Electronics Pub Date : 2024-08-26 DOI:10.1109/TIE.2024.3440507

Shumei Cui;Mingtao Zhang;Beibei Song;Tian Sun

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Abstract

Three-phase wireless power transfer (WPT) systems have the advantages of higher power density and low power fluctuations. However, increasing the number of phases complicates the resonant topology structure of the system. Existing research lacks analysis of the unique electrical characteristics of three-phase resonant topologies, particularly regarding the star-delta and different connections of inductor and capacitor neutral points. This article derives the expressions for the resonant capacitance of first-order and second-order topologies under star-delta connections. After contrasting the voltage stresses on resonant components and system transmission characteristics under different star-delta connections, the suitable application scenarios for each connection method are provided. Utilizing the symmetrical component method, expressions for the voltage of inductor and capacitor neutral points under star connection are derived, and then the optimal neutral point connection topology for both balanced current control and independent current control scenarios is proposed. Finally, an experimental prototype is constructed to validate the theoretical analysis presented in this article.

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考虑星三角和中性点连接的三相无线电力传输系统谐振拓扑特性分析

三相无线电力传输系统具有功率密度高、功率波动小的优点。然而，增加相数会使系统的谐振拓扑结构复杂化。现有的研究缺乏对三相谐振拓扑结构独特的电特性的分析，特别是对星形三角形和电感与电容中性点的不同连接方式的分析。导出了星三角连接下一阶和二阶拓扑谐振电容的表达式。对比了不同星三角连接方式下谐振元件的电压应力和系统传输特性，给出了每种连接方式的适用场景。利用对称分量法推导了星形连接下电感和电容中性点电压的表达式，给出了平衡电流控制和独立电流控制两种情况下中性点连接的最优拓扑。最后，搭建了一个实验样机来验证本文的理论分析。

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来源期刊

IEEE Transactions on Industrial Electronics 工程技术-工程：电子与电气

CiteScore

16.80

自引率

9.10%

发文量

1396

审稿时长

6.3 months

期刊介绍： Journal Name: IEEE Transactions on Industrial Electronics Publication Frequency: Monthly Scope: The scope of IEEE Transactions on Industrial Electronics encompasses the following areas: Applications of electronics, controls, and communications in industrial and manufacturing systems and processes. Power electronics and drive control techniques. System control and signal processing. Fault detection and diagnosis. Power systems. Instrumentation, measurement, and testing. Modeling and simulation. Motion control. Robotics. Sensors and actuators. Implementation of neural networks, fuzzy logic, and artificial intelligence in industrial systems. Factory automation. Communication and computer networks.