A 1MHz Oak Ridge AC / DC Converter for UAV Contactless Charger Implementation

Asa, Erdem; Xue, Lincoln; Mohammad, Mostak; Galigekere, Veda Prakash; Onar, Omer; Ozpineci, Burak

doi:10.1109/APEC43599.2022.9773397

A 1MHz Oak Ridge AC / DC Converter for UAV Contactless Charger Implementation

Conference · Tue Mar 01 04:00:00 EST 2022

DOI:https://doi.org/10.1109/APEC43599.2022.9773397· OSTI ID:1871105

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ORNL

In this paper, a 1 MHz single-phase Oak Ridge Converter (ORC) AC/DC wireless power transfer (WPT) system is introduced for unmanned air vehicle (UAV) charging applications. The proposed advanced solution eliminates the design, weight, volume, and the cost of the power factor correcting (PFC) front-end rectifier compared to the conventional practices. Additionally, grid power quality requirements can be achieved with the presented innovative idea. With this method, single stage WPT primary side uses the hybrid grid frequency and high frequency (60 Hz and 1 MHZ) from ac source through the coupler coils and to UAV battery with GaN FETs. Experimental results of the single-phase system is presented to confirm the mathematical analyses with the source voltage of 110 VAC, RMS and output voltage of 40 VDC at 1 kW power with 6 inches air gap between couplers. The primary coupler consists of a ferrite-backed single-turn coil with a radius of 1.5 ft, and the secondary coupler is made with an air-core single-turn coil with radius of 1.2 ft. The system overall ac to dc efficiency is measured 77 % acquiring 0.99 power factor (PF) and 3.3 % current total harmonic distortion (THD) at 1 kW power.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC)

DOE Contract Number:: AC05-00OR22725

OSTI ID:: 1871105

Country of Publication:: United States

Language:: English

References (13)

A Novel Bi-directional AC/DC - DC/AC Wireless Power Transfer System for Grid Support Applications Asa, Erdem; Onar, Omer C.; Galigekere, Veda P. 2021 IEEE Applied Power Electronics Conference and Exposition (APEC) https://doi.org/10.1109/APEC42165.2021.9487178	conference	June 2021
A Tradeoff Analysis of Series / Parallel Three-Phase Converter Topologies for Wireless Extreme Chargers Asa, Erdem; Onar, Omer C.; Pries, Jason 2020 IEEE Transportation Electrification Conference & Expo (ITEC) https://doi.org/10.1109/ITEC48692.2020.9161592	conference	June 2020
A High-Efficiency Wireless Power Transfer System for Unmanned Aerial Vehicle Considering Carbon Fiber Body Song, Kai; Zhang, Peng; Chen, Zhengxin 2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe) https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215936	conference	September 2020
Study on Series Printed-Circuit-Board Coil Matrix for Misalignment-Insensitive Wireless Charging Li, Jianchao; Wang, Liming; Yin, Fanghui 2019 IEEE Wireless Power Transfer Conference (WPTC) https://doi.org/10.1109/WPTC45513.2019.9055701	conference	June 2019
Design and Study of Data and Power Wireless Transfer System for UAV Li, Xiaokun; Lu, Junwei; Water, Wayne 2019 14th IEEE Conference on Industrial Electronics and Applications (ICIEA) https://doi.org/10.1109/ICIEA.2019.8833983	conference	June 2019
Magnetic Resonant Coupling Wireless Power Transfer for Lightweight Batteryless UAVs Torrisi, Alessandro; Brunelli, Davide 2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM) https://doi.org/10.1109/SPEEDAM48782.2020.9161953	conference	June 2020
A 500-W Wireless Charging System With Lightweight Pick-Up for Unmanned Aerial Vehicles Cai, Chunwei; Wu, Shuai; Jiang, Longyun IEEE Transactions on Power Electronics, Vol. 35, Issue 8 https://doi.org/10.1109/TPEL.2020.2964023	journal	August 2020
Analysis and Control of Multiphase Inductively Coupled Resonant Converter for Wireless Electric Vehicle Charger Applications Bojarski, Mariusz; Asa, Erdem; Colak, Kerim IEEE Transactions on Transportation Electrification, Vol. 3, Issue 2 https://doi.org/10.1109/TTE.2016.2566921	journal	June 2017
A Novel Phase-Shift Control of Semibridgeless Active Rectifier for Wireless Power Transfer Colak, Kerim; Asa, Erdem; Bojarski, Mariusz IEEE Transactions on Power Electronics, Vol. 30, Issue 11 https://doi.org/10.1109/TPEL.2015.2430832	journal	November 2015
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Analysis of Double-Output CLL Resonant Converter for All-Electric UAV Applications Asa, Erdem; Colak, Kerim; Onar, Omer C. 2020 IEEE Energy Conversion Congress and Exposition (ECCE) https://doi.org/10.1109/ECCE44975.2020.9236044	conference	October 2020
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