Efficient Method for Computing Capacitance Changes between Electrodes due to Foreign Objects in Capacitive WPT Systems

Q3 Computer Science

Periodica polytechnica Electrical engineering and computer science Pub Date : 2022-06-21 DOI:10.3311/ppee.19551

Bence Tóth

引用次数: 0

Abstract

In this paper, a foreign object detection method based on an integral formula is derived for capacitive wireless power transfer systems. The formula expresses the capacitance changes of the system and can predict even very small changes with high accuracy and computational efficiency, as the change is directly evaluated from the electric field in the volume of the foreign object. First, the derivation of the integral formula is presented, then a simple configuration is investigated using the finite element method.

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电容式WPT系统中电极间因异物引起的电容变化的有效计算方法

本文提出了一种基于积分公式的电容式无线电力传输系统异物检测方法。该公式表达了系统的电容变化，并且可以预测非常小的变化，具有很高的精度和计算效率，因为变化是直接从异物体积中的电场来评估的。首先推导了积分公式，然后用有限元法研究了一种简单构型。

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

Periodica polytechnica Electrical engineering and computer science Engineering-Electrical and Electronic Engineering

CiteScore

2.60

自引率

0.00%

发文量

期刊介绍： The main scope of the journal is to publish original research articles in the wide field of electrical engineering and informatics fitting into one of the following five Sections of the Journal: (i) Communication systems, networks and technology, (ii) Computer science and information theory, (iii) Control, signal processing and signal analysis, medical applications, (iv) Components, Microelectronics and Material Sciences, (v) Power engineering and mechatronics, (vi) Mobile Software, Internet of Things and Wearable Devices, (vii) Solid-state lighting and (viii) Vehicular Technology (land, airborne, and maritime mobile services; automotive, radar systems; antennas and radio wave propagation).