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A Single-Stage Dynamically Compensated IPT Converter with Unity Power Factor and Constant Output Voltage under Varying Coupling Condition
Wong,Chi Shing1; Chan,Yiu Pang2; Cao,Lingling3; Wang,Lei4; Loo,K. H.5; Wong,Man Chung5
2020-10
Source PublicationIEEE TRANSACTIONS ON POWER ELECTRONICS
ISSN0885-8993
Volume35Issue:10Pages:10121-10136
Abstract

Leakage and magnetizing inductances of a loosely coupled transformer are constantly changing due to the relative positions of the primary and secondary transformer windings in inductive power transfer systems. In order to counteract the nonnegligible inductances and extract desirable characteristics from the system, various compensation networks have been proposed to obtain unity input power factor and constant output voltage for minimum reactive power and ease of control for battery charging or other power electronic applications. However, most of the existing control methods with fixed compensation networks, which are usually designed for a specific coupling coefficient, have failed to fulfill both requirements simultaneously due to the mismatch between the resonant frequencies of the networks after the deviation of the designed coupling condition. In this article, a dynamic series/series-parallel compensation network based on a switch-controlled capacitor is proposed to rematch the series- and parallel-resonant frequencies of the network such that the magnetizing inductance can be adaptively compensated for different sizes of air gap/misalignment. By doing so, the requirements of load-independent output voltage and unity input power factor can be simultaneously fulfilled, while zero-voltage switching on the primary bridge is still maintained under different coupling conditions by a single-stage converter. An experimental prototype with the air gap ranging from 10-16 cm is built to verify the idea.

KeywordDynamic Compensation Inductive Power Transfer (Ipt) Load-independent Output Voltage Series/series-parallel (S/sp) Compensation Switch-controlled Capacitor (Scc) Varying Coupling Condition
DOI10.1109/TPEL.2020.2978532
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000545474200020
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC445 HOES LANE, PISCATAWAY, NJ 08855-4141
Scopus ID2-s2.0-85087748496
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Citation statistics
Document TypeJournal article
CollectionFaculty of Science and Technology
THE STATE KEY LABORATORY OF INTERNET OF THINGS FOR SMART CITY (UNIVERSITY OF MACAU)
DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorWong,Chi Shing
Affiliation1.State Key Laboratory of Internet of Things for Smart City, University of Macau, Macao
2.Department of Electronic and Information Engineering, Hong Kong Polytechnic University, Hong Kong, Hong Kong
3.School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen, China
4.College of Electrical and Information Engineering, Hunan University, Changsha, China
5.Department of Electrical and Computer Engineering, Faculty of Science and Technology, State Key Laboratory of Internet of Things for Smart City, University of Macau, Macao
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Wong,Chi Shing,Chan,Yiu Pang,Cao,Lingling,et al. A Single-Stage Dynamically Compensated IPT Converter with Unity Power Factor and Constant Output Voltage under Varying Coupling Condition[J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2020, 35(10), 10121-10136.
APA Wong,Chi Shing., Chan,Yiu Pang., Cao,Lingling., Wang,Lei., Loo,K. H.., & Wong,Man Chung (2020). A Single-Stage Dynamically Compensated IPT Converter with Unity Power Factor and Constant Output Voltage under Varying Coupling Condition. IEEE TRANSACTIONS ON POWER ELECTRONICS, 35(10), 10121-10136.
MLA Wong,Chi Shing,et al."A Single-Stage Dynamically Compensated IPT Converter with Unity Power Factor and Constant Output Voltage under Varying Coupling Condition".IEEE TRANSACTIONS ON POWER ELECTRONICS 35.10(2020):10121-10136.
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