Multisource and Battery-Free Energy Harvesting Architecture for Aeronautics Applications

We suggest an innovative architecture for an efficient energy generator devoted to the powering of a wireless sensor network deployed for aircraft health monitoring. This battery-free generator captures energy from its environment (transient thermal gradients as a main source, and vibrations as a se...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2015-06, Vol.30 (6), p.3215-3227
Main Authors: Vanhecke, Claude, Assouere, Laurent, Anqing Wang, Durand-Estebe, Paul, Caignet, Fabrice, Dilhac, Jean-Marie, Bafleur, Marise
Format: Article
Language:English
Subjects:
Aircraft
Architecture
CMOS
Diodes
Electrical equipment
Energy efficiency
Energy harvesting
Engineering Sciences
Generators
Micro and nanotechnologies
Microelectronics
Power consumption
Remote sensors
Scavenging
Sensors
Supercapacitors
Vibration
Vibrations
Wireless communication
Wireless sensor networks
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Summary:We suggest an innovative architecture for an efficient energy generator devoted to the powering of a wireless sensor network deployed for aircraft health monitoring. This battery-free generator captures energy from its environment (transient thermal gradients as a main source, and vibrations as a secondary source allowing early biasing of the generator) and stores this energy in ultracapacitors. In this way, this multisource architecture benefits from the synergy between energy scavenging and harvesting: vibrations bring low but early and permanent energy. They also contribute to energy harvesting during cruise while thermal gradients have vanished. The use of active diodes and of a very low bias current of 10 nA/branch allow achieving ultralow power consumption, experimentally demonstrated on two different CMOS technologies. It is also proven that enough energy could be delivered to power the functions of a wireless sensor node.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2014.2331365