An Autonomous Coil Alignment System for the Dynamic Wireless Charging ofElectric Vehicles to Minimize Lateral Misalignment

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/474532.do
DOI
10.3390/en10030315
Title
An Autonomous Coil Alignment System for the Dynamic Wireless Charging ofElectric Vehicles to Minimize Lateral Misalignment
Description
This research was supported MSIP (Ministry of Science, ICT and FuturePlanning), Korea, under the ITRC (Information Technology ResearchCenter) support program (IITP-2016-R2718-16-0012) supervised by the IITP(National IT Industry Promotion Agency) and the IT R&D program ofMSIP/IITP. (B0138-16-1002, Study on the EMF exposure control in smartsociety).
abstract
This paper proposes an autonomous coil alignment system (ACAS) for electric vehicles (EVs) with dynamic wireless charging (DWC) to mitigate the reduction in received power caused by lateral misalignment between the source and load coils. The key component of the ACAS is a novel sensor coil design, which can detect the load coil's left or right position relative to the source coil by observing the change in voltage phase. This allows the lateral misalignment to be estimated through the wireless power transfer (WPT) system alone, which is a novel tracking method for vehicular applications. Once misalignment is detected, the vehicle's lateral position is self-adjusted by an autonomous steering function. The feasibility of the overall operation of the ACAS was verified through simulation and experiments. In addition, an analysis based on experimental results was conducted, demonstrating that 26% more energy can be transferred during DWC with the ACAS, just by keeping the vehicle's load coil aligned with the source coil.
provenance
Made available in Cube on 2018-09-28T10:48:33Z (GMT). No. of bitstreams: 0
language
English
author
Hwang, Karam
Cho, Jaeyong
Kim, Dongwook
Park, Jaehyoung
Kwon, Jong Hwa
Kwak, Sang Il
Park, Hyun Ho
Ahn, Seungyoung
orcid
Cho, Jaeyong/0000-0003-4006-1820
accessioned
2018-09-28T10:48:33Z
available
2018-09-28T10:48:33Z
issued
2017
citation
ENERGIES(10): 3
issn
1996-1073
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/474532.do
Funder
교육부
Funding Program
BK21플러스사업(0.5)
Project ID
1345274286
Jurisdiction
Rep.of Korea
Project Name
Future Transportation System Research Team
rights
openAccess
subject
electric vehicle (EV)
dynamic wireless charging (DWC)
wireless powertransfer (WPT)
power degradation
coil misalignment
magnetic sensing
type
article


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