Coupling Estimation and Maximum Efficiency Tracking in Multi-Transmitters WPT for Fast Moving Receiver

Maximum efficiency tracking (MET) with multiple concurrently-activated transmitters (TXs) has not yet been investigated thoroughly. This paper proposes a fast real-time estimation of coupling coefficients and load resistance for multiple concurrently-activated TXs and a moving RX. This is the first...

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Main Authors: Shahid Ali Khan, Dukju Ahn
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10388286/
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author Shahid Ali Khan
Dukju Ahn
author_facet Shahid Ali Khan
Dukju Ahn
author_sort Shahid Ali Khan
collection DOAJ
description Maximum efficiency tracking (MET) with multiple concurrently-activated transmitters (TXs) has not yet been investigated thoroughly. This paper proposes a fast real-time estimation of coupling coefficients and load resistance for multiple concurrently-activated TXs and a moving RX. This is the first paper that demonstrates iteration-less, fast, communication-less MET with power regulation when the RX is moving across multiple activated TX array. The controller senses only the voltage magnitude of TX coil-capacitor resonator, and the input DC voltage and DC current of inverter. Once the parameters are estimated, the controller sets the converters to maximum efficiency point immediately. The benefits of proposed method are that it does not require a communication channel, extra circuit components for MET, time-consuming iterations and computations, and periodic interruption of power flow due to load disconnection or initialization, all of which were limitations in typical methods. Experimental results show that the proposed method provides a fast response (3.8ms) for an RX moving at 6.84 km/h across multiple TXs.
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spelling doaj.art-e033b95aaed446aba7cbd3f0174e45052024-01-23T00:04:59ZengIEEEIEEE Access2169-35362024-01-01129952996210.1109/ACCESS.2024.335263610388286Coupling Estimation and Maximum Efficiency Tracking in Multi-Transmitters WPT for Fast Moving ReceiverShahid Ali Khan0https://orcid.org/0000-0003-4508-0916Dukju Ahn1https://orcid.org/0000-0001-8331-2808Department of Electrical Engineering, Incheon National University, Incheon, South KoreaDepartment of Electrical Engineering, Incheon National University, Incheon, South KoreaMaximum efficiency tracking (MET) with multiple concurrently-activated transmitters (TXs) has not yet been investigated thoroughly. This paper proposes a fast real-time estimation of coupling coefficients and load resistance for multiple concurrently-activated TXs and a moving RX. This is the first paper that demonstrates iteration-less, fast, communication-less MET with power regulation when the RX is moving across multiple activated TX array. The controller senses only the voltage magnitude of TX coil-capacitor resonator, and the input DC voltage and DC current of inverter. Once the parameters are estimated, the controller sets the converters to maximum efficiency point immediately. The benefits of proposed method are that it does not require a communication channel, extra circuit components for MET, time-consuming iterations and computations, and periodic interruption of power flow due to load disconnection or initialization, all of which were limitations in typical methods. Experimental results show that the proposed method provides a fast response (3.8ms) for an RX moving at 6.84 km/h across multiple TXs.https://ieeexplore.ieee.org/document/10388286/Dynamic wireless power transferresonant convertermaximum efficiency point trackingmultiple transmitters
spellingShingle Shahid Ali Khan
Dukju Ahn
Coupling Estimation and Maximum Efficiency Tracking in Multi-Transmitters WPT for Fast Moving Receiver
IEEE Access
Dynamic wireless power transfer
resonant converter
maximum efficiency point tracking
multiple transmitters
title Coupling Estimation and Maximum Efficiency Tracking in Multi-Transmitters WPT for Fast Moving Receiver
title_full Coupling Estimation and Maximum Efficiency Tracking in Multi-Transmitters WPT for Fast Moving Receiver
title_fullStr Coupling Estimation and Maximum Efficiency Tracking in Multi-Transmitters WPT for Fast Moving Receiver
title_full_unstemmed Coupling Estimation and Maximum Efficiency Tracking in Multi-Transmitters WPT for Fast Moving Receiver
title_short Coupling Estimation and Maximum Efficiency Tracking in Multi-Transmitters WPT for Fast Moving Receiver
title_sort coupling estimation and maximum efficiency tracking in multi transmitters wpt for fast moving receiver
topic Dynamic wireless power transfer
resonant converter
maximum efficiency point tracking
multiple transmitters
url https://ieeexplore.ieee.org/document/10388286/
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AT dukjuahn couplingestimationandmaximumefficiencytrackinginmultitransmitterswptforfastmovingreceiver