An Effective Experimental Optimization Method for Wireless Power Transfer System Design Using Frequency Domain Measurement

Jeong, Sangyeong; Kim, Mina; Jung, Jee‐Hoon; Kim, Jingook

doi:10.26866/jees.2017.17.4.208

Cited by 4 publications

(2 citation statements)

References 23 publications

(37 reference statements)

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“…Scattering parameters have been extensively measured and exploited to characterize microwave networks or material parameters [15,16], to validate the performance of microwave devices [17][18][19], and to design a matching circuit between two ports [20].…”

Section: Introductionmentioning

confidence: 99%

Time-Domain Pulse Waveform Correction for Pulsed Electric Field Measurement in Microwave Cable with Frequency-Dependent Loss

Jeong

Kim

Ryu

2021

J Electromagn Eng Sci

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This paper presents a method that corrects pulse waveforms distorted by the frequency-dependent loss of microwave cables in measuring pulsed electric fields (PEFs). Because the distortion resulting from the microwave cable disrupts accurate PEF measurements, the distorted pulse should be corrected for precise PEF effect testing. The proposed correction method is achieved by a transfer function that is determined by ABCD parameters calculated from the scattering parameters of the cable. A 10-m microwave cable is tested to validate the proposed method, where the input pulse is a 2-ns sine pulse of a single cycle. Here, the output pulse, scattering parameters, and cable resistance are measured. These measurement results are used to represent the transfer function in MATLAB for the proposed correction method. The test results show that the corrected pulse obtained from the transfer function has an error of 4.5% in the peak-to-peak voltage and an error of 0.8% in the bipolar pulse width compared to the reference input pulse. The errors of PEF measurement decrease dramatically by using the proposed correction method. Moreover, the correction method is validated for various pulse durations, pulse shapes, and cable types.

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Section: Introductionmentioning

confidence: 99%

Time-Domain Pulse Waveform Correction for Pulsed Electric Field Measurement in Microwave Cable with Frequency-Dependent Loss

Jeong

Kim

Ryu

2021

J Electromagn Eng Sci

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“…Although WPT technology can overcome the shortcomings of a wired power system, there is concern that the transmission distance poses a potential inconvenience to users [6]. Various coil systems and methods have been employed to increase the transmission distance [7,8]. However, these enhancing methods generally require increased space, weight, and cost, which are critical problems in UAVs.…”

Section: Introductionmentioning

confidence: 99%

Toroidal-Shaped Coils for a Wireless Power Transfer System for an Unmanned Aerial Vehicle

Park

Kim²,

Shin

et al. 2019

J Electromagn Eng Sci

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Unmanned aerial vehicles (UAVs) using communications, sensors, and navigation equipment will play a key role in future warfare. Currently, UAVs are monitored to prevent misfire and accidents, and the conventional method adopted uses wires for data transmission and power supply. The repeated connection and disconnection of cables increases maintenance time and harms the connector. For convenience and stability, a wireless power transfer system to power UAVs is needed. Unlike other wireless power transfer (WPT) applications, the size of the receiving coils must be small, so that the WPT systems can be embedded inside space-limited UAVs. The small size reduces the coupling coefficient and transfer efficiency between the transmitting and the receiving coils. In this study, we propose a toroidal-shaped coil for a WPT system for UAVs with high coupling coefficient with minimum space requirements. For validation, conventional coils and the proposed toroidal-shaped coil were used and their coupling coefficient and power transfer efficiency were compared using simulated and measured results. The simulated and measured results were strongly correlated, confirming that the proposed WPT system significantly improved efficiency with negligible change in the space requirement. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

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A novel investigation on finding optimal mode and performance improvement of a control system

Wang¹,

Takhti²,

Salman³

et al. 2023

Alexandria Engineering Journal

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An Effective Experimental Optimization Method for Wireless Power Transfer System Design Using Frequency Domain Measurement

Cited by 4 publications

References 23 publications

Time-Domain Pulse Waveform Correction for Pulsed Electric Field Measurement in Microwave Cable with Frequency-Dependent Loss

Time-Domain Pulse Waveform Correction for Pulsed Electric Field Measurement in Microwave Cable with Frequency-Dependent Loss

Toroidal-Shaped Coils for a Wireless Power Transfer System for an Unmanned Aerial Vehicle

A novel investigation on finding optimal mode and performance improvement of a control system

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