Identification and modeling method of wireless power transfer system in conductive medium using Z-parameters전도성 매질에서 임피던스를 이용한 무선전력전송 시스템의 분석 및 모델링 방법

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Recently, as the environment of applications applying wireless power transfer technology is diversified, many researches are being conducted in medium other than air, such as water and the human body. However, the inductive wireless power trasnfer using a magnetic field causes eddy current loss in a medium with electrical conductivity. The eddy current loss causes a change in impedance of the wireless power transfer system and a decrease in power transfer efficiency. Therefore, there is a need for a system analysis method taking this into account. This research proposes an accurate modeling method of wireless power transfer system reflecting the effect of eddy current loss occurring in a conductive medium using Z-parameters. And using the proposed model, we efficiently analyze the wireless power transfer system in a conductive medium through a simple circuit theory. The proposed method was verified and validated through mathematical calculations, electromagnetic simulations, and measurements. This research is expected to be utilized for analysis and design of wireless power transfer system in conductive medium.
Advisors
Ahn, Seungyoungresearcher안승영researcher
Description
한국과학기술원 :조천식녹색교통대학원,
Publisher
한국과학기술원
Issue Date
2021
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 조천식녹색교통대학원, 2021.8,[vii, 80 p. :]

Keywords

Wireless power transfer▼aInductive method▼aConductive medium▼aEddy current▼aEddy current loss▼aZ-parameters; 무선전력전송▼a자기유도 방식▼a전도성 매질▼a맴돌이 전류▼a맴돌이 전류 손실▼a임피던스

URI
http://hdl.handle.net/10203/295756
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=962411&flag=dissertation
Appears in Collection
GT-Theses_Ph.D.(박사논문)
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