IEICE TRANSACTIONS on Communications
Receive Power Control in Multiuser Inductive Power Transfer System Using Single-Frequency Coil Array
Summary :
This paper investigates receive power control for multiuser inductive power transfer (IPT) systems with a single-frequency coil array. The primary task is to optimize the transmit coil currents to minimize the total input power, subject to the minimum receive powers required by individual users. Due to the complicated coupling mechanism among all transmit coils and user pickups, the optimization problem is a non-convex quadratically constrained quadratic program (QCQP), which is analytically intractable. This paper solves the problem by applying the semidefinite relaxation (SDR) technique and evaluates the performance by full-wave electromagnetic simulations. Our results show that a single-frequency coil array is capable of power control for various multiuser scenarios, assuming that the number of transmit coils is greater than or equal to the number of users and the transmission conditions for individual users are uncorrelated.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E101-B No.10 pp.2222-2229
- Publication Date
- 2018/10/01
- Publicized
- 2018/04/05
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2017EBP3387
- Type of Manuscript
- PAPER
- Category
- Antennas and Propagation
Authors
Quang-Thang DUONG
Nara Institute of Science and Technology
Minoru OKADA
Nara Institute of Science and Technology
Keyword
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Quang-Thang DUONG, Minoru OKADA, "Receive Power Control in Multiuser Inductive Power Transfer System Using Single-Frequency Coil Array" in IEICE TRANSACTIONS on Communications,
vol. E101-B, no. 10, pp. 2222-2229, October 2018, doi: 10.1587/transcom.2017EBP3387.
Abstract: This paper investigates receive power control for multiuser inductive power transfer (IPT) systems with a single-frequency coil array. The primary task is to optimize the transmit coil currents to minimize the total input power, subject to the minimum receive powers required by individual users. Due to the complicated coupling mechanism among all transmit coils and user pickups, the optimization problem is a non-convex quadratically constrained quadratic program (QCQP), which is analytically intractable. This paper solves the problem by applying the semidefinite relaxation (SDR) technique and evaluates the performance by full-wave electromagnetic simulations. Our results show that a single-frequency coil array is capable of power control for various multiuser scenarios, assuming that the number of transmit coils is greater than or equal to the number of users and the transmission conditions for individual users are uncorrelated.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2017EBP3387/_p
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@ARTICLE{e101-b_10_2222,
author={Quang-Thang DUONG, Minoru OKADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Receive Power Control in Multiuser Inductive Power Transfer System Using Single-Frequency Coil Array},
year={2018},
volume={E101-B},
number={10},
pages={2222-2229},
abstract={This paper investigates receive power control for multiuser inductive power transfer (IPT) systems with a single-frequency coil array. The primary task is to optimize the transmit coil currents to minimize the total input power, subject to the minimum receive powers required by individual users. Due to the complicated coupling mechanism among all transmit coils and user pickups, the optimization problem is a non-convex quadratically constrained quadratic program (QCQP), which is analytically intractable. This paper solves the problem by applying the semidefinite relaxation (SDR) technique and evaluates the performance by full-wave electromagnetic simulations. Our results show that a single-frequency coil array is capable of power control for various multiuser scenarios, assuming that the number of transmit coils is greater than or equal to the number of users and the transmission conditions for individual users are uncorrelated.},
keywords={},
doi={10.1587/transcom.2017EBP3387},
ISSN={1745-1345},
month={October},}
Copy
TY - JOUR
TI - Receive Power Control in Multiuser Inductive Power Transfer System Using Single-Frequency Coil Array
T2 - IEICE TRANSACTIONS on Communications
SP - 2222
EP - 2229
AU - Quang-Thang DUONG
AU - Minoru OKADA
PY - 2018
DO - 10.1587/transcom.2017EBP3387
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E101-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2018
AB - This paper investigates receive power control for multiuser inductive power transfer (IPT) systems with a single-frequency coil array. The primary task is to optimize the transmit coil currents to minimize the total input power, subject to the minimum receive powers required by individual users. Due to the complicated coupling mechanism among all transmit coils and user pickups, the optimization problem is a non-convex quadratically constrained quadratic program (QCQP), which is analytically intractable. This paper solves the problem by applying the semidefinite relaxation (SDR) technique and evaluates the performance by full-wave electromagnetic simulations. Our results show that a single-frequency coil array is capable of power control for various multiuser scenarios, assuming that the number of transmit coils is greater than or equal to the number of users and the transmission conditions for individual users are uncorrelated.
ER -
English
