基于改进型变步扰动观测的双端谐振电路的解谐分析和功率跟踪，用于无线电力传输系统

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

International Journal of Circuit Theory and Applications Pub Date : 2024-07-31 DOI:10.1002/cta.4204

Jiangui Li, Guangbin Luo, Longyang Wang, Qinghe Si, Yinchong Peng, Zheyuan Guo

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引用次数: 0

摘要

本文提出了一种基于改进的变步扰动观测方法的功率跟踪方法。该方法旨在解决基于 S-S 补偿电路的 MCR-WPT 系统中电容器参数漂移引起的失谐问题。与传统调谐方法相比，本文提出的方法具有响应快、精度高、复杂度低、不易过跟踪等特点。首先，建立了基于失谐因子的系统数学模型。其次，研究了初始谐振频率下不同失谐条件对系统的影响。第三，研究了不同失谐条件下系统对不同频率的响应特性。第四，在上述研究的基础上，提出了一种基于单步功率下降因子的改进型变步扰动观测方法。最后，搭建了实验平台，并进行了相关实验。实验结果验证了不同失谐条件下功率跟踪的有效性，最低传输效率为 81.51%。

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Detuning analysis and power tracking of dual‐ended resonant circuit based on improved variable‐step perturbation observation for wireless power transfer system

A power tracking method based on improved variable‐step perturbation observation approach has been proposed in this paper. This method is aimed at addressing the detuning issues caused by capacitor parameter drift in MCR‐WPT systems based on S‐S compensation circuits. Compared with traditional tuning methods, the proposed method has fast response, high accuracy, low complexity, and less prone to over‐tracking. Firstly, a mathematical model of the system based on the detuning factor has been established. Secondly, the impact of different detuning conditions on the system at the initial resonant frequency has been studied. Thirdly, the response characteristics of the system to different frequencies under different detuning conditions have been studied. Fourthly, based on the above researches, an improved variable‐step perturbation observation method based on the single‐step power drop factor has been proposed. Finally, an experimental platform was constructed, and relevant experiments were conducted. Experimental results validate the effectiveness of power tracking under different detuning conditions, with the lowest transmission efficiency being 81.51%.

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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.