Multiplexed supply of a MISO wireless power transfer system for battery-free wireless sensors
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In: Energies, Vol. 13, No. 5, 1244, 07.03.2020.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Multiplexed supply of a MISO wireless power transfer system for battery-free wireless sensors
AU - Bouattour, Ghada
AU - Elhawy, Mohamed
AU - Naifar, Slim
AU - Viehweger, Christian
AU - Derbel, Houda Ben Jmaa
AU - Kanoun, Olfa
N1 - Publisher Copyright: © 2020 by the authors.
PY - 2020/3/7
Y1 - 2020/3/7
N2 - Multi-input single output wireless power transmission (MISO-WPT) systems have decisive advantages concerning flexible receiver position in comparison to single coil systems. However, the supply of the primary side brings a large uncertainty in case of variable positions of the secondary side. In this paper, a compact multiplexed primary side electronic circuit is proposed, which includes only one signal generator, a passive peak detector, a communication module, and a compensation capacitor. The novel approach has been studied and evaluated for a MISO-WPT system having a 16 coils on primary side and one coil on secondary side having the double diameter. Results show that a standard microcontroller, in this case an STM32, is sufficient for the control of the whole system, so that the costs and the energy consumption are significantly reduced. An activation strategy has been proposed, which allows to determine the optimal transmitting coil for each position of the receiving coil and to switch it on. The time-to-start-charging at different positions of the receiving coil and different number of neighbors has been determined. It remains in all cases under 2.5 s.
AB - Multi-input single output wireless power transmission (MISO-WPT) systems have decisive advantages concerning flexible receiver position in comparison to single coil systems. However, the supply of the primary side brings a large uncertainty in case of variable positions of the secondary side. In this paper, a compact multiplexed primary side electronic circuit is proposed, which includes only one signal generator, a passive peak detector, a communication module, and a compensation capacitor. The novel approach has been studied and evaluated for a MISO-WPT system having a 16 coils on primary side and one coil on secondary side having the double diameter. Results show that a standard microcontroller, in this case an STM32, is sufficient for the control of the whole system, so that the costs and the energy consumption are significantly reduced. An activation strategy has been proposed, which allows to determine the optimal transmitting coil for each position of the receiving coil and to switch it on. The time-to-start-charging at different positions of the receiving coil and different number of neighbors has been determined. It remains in all cases under 2.5 s.
KW - Contactless charging
KW - Contactless power transmission
KW - Inductive power transmission
KW - MISO system
KW - Multi-coil system; energy harvesting; wireless sensor node; passive peak detector; multiplexer
KW - Resonant power transmission
KW - Wireless power transmission
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=85081744275&partnerID=8YFLogxK
U2 - 10.3390/en13051244
DO - 10.3390/en13051244
M3 - Journal articles
AN - SCOPUS:85081744275
VL - 13
JO - Energies
JF - Energies
SN - 1996-1073
IS - 5
M1 - 1244
ER -