Comparative Study of Foreign Object and Misalignment in Inductive Power Transfer Systems

Wenli Shi; Jianning Dong; Soumya Bandyopadhyay; Francesca Grazian; Thiago Batista Soeiro; Pavol Bauer

doi:10.1109/IECON.2019.8926782

Comparative Study of Foreign Object and Misalignment in Inductive Power Transfer Systems

Wenli Shi, Jianning Dong, Soumya Bandyopadhyay, Francesca Grazian, Thiago Batista Soeiro, Pavol Bauer

DC systems, Energy conversion & Storage

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

8 Citations (Scopus)

60 Downloads (Pure)

Abstract

This paper aims to identify the difference between foreign object (FO) and misalignment in terms of their influence on inductive power transfer (IPT) systems. This is performed through magnetic and equivalent circuit analysis of the mutual inductance, primary input impedance, charging pad terminal impedance and current harmonics. Experiment measurements on an IPT prototype are carried out to verify the analysis. It is found that: the charging pad terminal impedance under FO condition has a more pronounced decrement than that of misalignment; the mutual inductance under FO condition shows negative correlation with frequency, while positive for misalignment; the absolute value of the input impedance is decreased by FO and increased by misalignment; the influence of FO and misalignment on the THD of the input current is minimal. Finally, it is possible to detect FO and distinguish it from misalignment, through the variation of the primary pad terminal inductance, as well as the frequency dependence of the primary input impedance and the mutual inductance.

Original language	English
Title of host publication	IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
Publisher	IEEE
Pages	2634-2639
Number of pages	6
ISBN (Electronic)	978-1-7281-4878-6
ISBN (Print)	978-1-7281-4879-3
DOIs	https://doi.org/10.1109/IECON.2019.8926782
Publication status	Published - 2019
Event	IECON 2019: IEEE 45th Annual Conference of the Industrial Electronics Society - Lisbon, Portugal Duration: 14 Oct 2019 → 17 Oct 2019 Conference number: 45th

Conference

Conference	IECON 2019
Country/Territory	Portugal
City	Lisbon
Period	14/10/19 → 17/10/19

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

current harmonics
foreign objects
inductive power transfer
misalignment
wireless power transfer

Access to Document

10.1109/IECON.2019.8926782

Comparative_Study_of_Foreign_Object_and_Misalignment_in_Inductive_Power_Transfer_SystemsFinal published version, 877 KB

Cite this

@inproceedings{bdde9a37f2494ec68d61b7f17f41b3cc,

title = "Comparative Study of Foreign Object and Misalignment in Inductive Power Transfer Systems",

abstract = "This paper aims to identify the difference between foreign object (FO) and misalignment in terms of their influence on inductive power transfer (IPT) systems. This is performed through magnetic and equivalent circuit analysis of the mutual inductance, primary input impedance, charging pad terminal impedance and current harmonics. Experiment measurements on an IPT prototype are carried out to verify the analysis. It is found that: the charging pad terminal impedance under FO condition has a more pronounced decrement than that of misalignment; the mutual inductance under FO condition shows negative correlation with frequency, while positive for misalignment; the absolute value of the input impedance is decreased by FO and increased by misalignment; the influence of FO and misalignment on the THD of the input current is minimal. Finally, it is possible to detect FO and distinguish it from misalignment, through the variation of the primary pad terminal inductance, as well as the frequency dependence of the primary input impedance and the mutual inductance.",

keywords = "current harmonics, foreign objects, inductive power transfer, misalignment, wireless power transfer",

author = "Wenli Shi and Jianning Dong and Soumya Bandyopadhyay and Francesca Grazian and Soeiro, {Thiago Batista} and Pavol Bauer",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; IECON 2019 : IEEE 45th Annual Conference of the Industrial Electronics Society ; Conference date: 14-10-2019 Through 17-10-2019",

year = "2019",

doi = "10.1109/IECON.2019.8926782",

language = "English",

isbn = "978-1-7281-4879-3",

pages = "2634--2639",

booktitle = "IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society",

publisher = "IEEE",

address = "United States",

}

Comparative Study of Foreign Object and Misalignment in Inductive Power Transfer Systems. / Shi, Wenli ; Dong, Jianning; Bandyopadhyay, Soumya et al.
IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society. IEEE, 2019. p. 2634-2639 8926782.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Comparative Study of Foreign Object and Misalignment in Inductive Power Transfer Systems

AU - Shi, Wenli

AU - Dong, Jianning

AU - Bandyopadhyay, Soumya

AU - Grazian, Francesca

AU - Soeiro, Thiago Batista

AU - Bauer, Pavol

N1 - Conference code: 45th

PY - 2019

Y1 - 2019

N2 - This paper aims to identify the difference between foreign object (FO) and misalignment in terms of their influence on inductive power transfer (IPT) systems. This is performed through magnetic and equivalent circuit analysis of the mutual inductance, primary input impedance, charging pad terminal impedance and current harmonics. Experiment measurements on an IPT prototype are carried out to verify the analysis. It is found that: the charging pad terminal impedance under FO condition has a more pronounced decrement than that of misalignment; the mutual inductance under FO condition shows negative correlation with frequency, while positive for misalignment; the absolute value of the input impedance is decreased by FO and increased by misalignment; the influence of FO and misalignment on the THD of the input current is minimal. Finally, it is possible to detect FO and distinguish it from misalignment, through the variation of the primary pad terminal inductance, as well as the frequency dependence of the primary input impedance and the mutual inductance.

AB - This paper aims to identify the difference between foreign object (FO) and misalignment in terms of their influence on inductive power transfer (IPT) systems. This is performed through magnetic and equivalent circuit analysis of the mutual inductance, primary input impedance, charging pad terminal impedance and current harmonics. Experiment measurements on an IPT prototype are carried out to verify the analysis. It is found that: the charging pad terminal impedance under FO condition has a more pronounced decrement than that of misalignment; the mutual inductance under FO condition shows negative correlation with frequency, while positive for misalignment; the absolute value of the input impedance is decreased by FO and increased by misalignment; the influence of FO and misalignment on the THD of the input current is minimal. Finally, it is possible to detect FO and distinguish it from misalignment, through the variation of the primary pad terminal inductance, as well as the frequency dependence of the primary input impedance and the mutual inductance.

KW - current harmonics

KW - foreign objects

KW - inductive power transfer

KW - misalignment

KW - wireless power transfer

UR - http://www.scopus.com/inward/record.url?scp=85083970369&partnerID=8YFLogxK

U2 - 10.1109/IECON.2019.8926782

DO - 10.1109/IECON.2019.8926782

M3 - Conference contribution

AN - SCOPUS:85083970369

SN - 978-1-7281-4879-3

SP - 2634

EP - 2639

BT - IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society

PB - IEEE

T2 - IECON 2019

Y2 - 14 October 2019 through 17 October 2019

ER -

Comparative Study of Foreign Object and Misalignment in Inductive Power Transfer Systems

Abstract

Conference

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this