Maximum Efficiency Tracking of WPT System Based on Frequency Tracking Control

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEJ Transactions on Electrical and Electronic Engineering Pub Date : 2024-05-26 DOI:10.1002/tee.24128

Zhongjiu Zheng, Yunhe Wang, Jingwei Zhu

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引用次数: 0

Abstract

The parameter variations of magnetically coupled resonant wireless power transmission (MCR-WPT) system cause frequency splitting and resonant frequency shift, which lead to the system detuning and reduce the transmission efficiency. To solve the problems, a frequency tracking control method based on the phase difference between the primary-side voltage and the secondary-side current (Frequency Tracking Control-the primary-side voltage and the secondary-side current, FTC-PS) in this paper. According to the characteristics that the phase difference between the voltage of transmitting side and the current of receiving side is not affected by frequency splitting, the phase difference is controlled at 90°, so that the system can achieve the maximum transmission efficiency under the condition of frequency splitting and resonant frequency shift. The experimental results show that the method can make the system always work at the natural resonant frequency when the parameters change, and the transmission efficiency is not affected by the frequency splitting phenomenon. © 2024 Institute of Electrical Engineers of Japan and Wiley Periodicals LLC.

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基于频率跟踪控制的 WPT 系统最高效率跟踪

磁耦合谐振式无线输电（MCR-WPT）系统的参数变化会引起分频和谐振频率偏移，从而导致系统失谐并降低输电效率。为了解决这些问题，本文提出了一种基于一次侧电压和二次侧电流相位差的频率跟踪控制方法（频率跟踪控制--一次侧电压和二次侧电流，FTC-PS）。根据发射端电压和接收端电流的相位差不受分频影响的特点，将相位差控制在 90°，从而使系统在分频和谐振频移的条件下实现最大的传输效率。实验结果表明，该方法能使系统在参数变化时始终工作在自然谐振频率上，传输效率不受分频现象的影响。© 2024 日本电气工程师学会和 Wiley Periodicals LLC。

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

IEEJ Transactions on Electrical and Electronic Engineering 工程技术-工程：电子与电气

CiteScore

2.70

自引率

10.00%

发文量

199

审稿时长

4.3 months

期刊介绍： IEEJ Transactions on Electrical and Electronic Engineering (hereinafter called TEEE ) publishes 6 times per year as an official journal of the Institute of Electrical Engineers of Japan (hereinafter "IEEJ"). This peer-reviewed journal contains original research papers and review articles on the most important and latest technological advances in core areas of Electrical and Electronic Engineering and in related disciplines. The journal also publishes short communications reporting on the results of the latest research activities TEEE ) aims to provide a new forum for IEEJ members in Japan as well as fellow researchers in Electrical and Electronic Engineering from around the world to exchange ideas and research findings.