中文版 | English
Title

LitzImp: A Fast Impedance Extraction Algorithm for Litz Wire Coil

Author
Publication Years
2022
DOI
Source Title
ISSN
0278-0046
EISSN
1557-9948
VolumePPIssue:99Pages:1-10
Abstract
Litz wire coil (LWC) is an electronic component commonly used in wireless power transfer (WPT) and heating applications. However, due to its complex twisting structure with turns, existing calculation methods such as analytical methods and finite element method (FEM) cannot extract the impedance of LWC efficiently. This paper proposes an efficient numerical calculation algorithm named LitzImp for fast impedance extraction of LWC. LitzImp provides different simplification schemes for different coil structures, reducing the resource consumption in the repeated calculation for the same structures and improving efficiency while maintaining high accuracy. Experiments with nine manufactured coils, including circular coils (CC) and rectangular coils (RC), from simple to complex, are adopted to verify the performance of LitzImp. The comparative verification compared with FEM and the analytical method shows the advantages of LitzImp in terms of efficiency and accuracy. Through the analysis of the time consumption, the proposed method is 45 times faster than the similar numerical method for a given coil structure. For highly complex coils (500 strands), the impedance is obtained in less than 5.5 hours with good agreement with the measurement. LitzImp will be a powerful tool for the optimal design of LWC due to its high efficiency.
Keywords
URL[Source Record]
Language
English
SUSTech Authorship
First
ESI Research Field
ENGINEERING
Scopus EID
2-s2.0-85141526001
Data Source
Scopus
PDF urlhttps://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9928534
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/411912
DepartmentDepartment of Electrical and Electronic Engineering
Affiliation
1.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China
2.School of Automation, Southeast University, Nanjing, China
3.Department of Building Environment and Energy Engineering, Hong Kong Polytechnic University, Hong Kong
First Author AffilicationDepartment of Electrical and Electronic Engineering
First Author's First AffilicationDepartment of Electrical and Electronic Engineering
Recommended Citation
GB/T 7714
Lyu,Jiahua,Chen,Hong Cai,Du,Yaping,et al. LitzImp: A Fast Impedance Extraction Algorithm for Litz Wire Coil[J]. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS,2022,PP(99):1-10.
APA
Lyu,Jiahua,Chen,Hong Cai,Du,Yaping,&Cheng,Qingsha S..(2022).LitzImp: A Fast Impedance Extraction Algorithm for Litz Wire Coil.IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS,PP(99),1-10.
MLA
Lyu,Jiahua,et al."LitzImp: A Fast Impedance Extraction Algorithm for Litz Wire Coil".IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS PP.99(2022):1-10.
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