A Low Power AC/DC Interface for Wind-Powered Sensor Nodes

Mohammad Haidar, Hussein Chible, Corrado Boragno and Daniele D. Caviglia
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Mohammad Haidar: Cosmic Lab, DITEN, University of Genoa, 16145 Genoa, Italy
Hussein Chible: MECRL Lab, EDST, Lebanese University, BadaroBeirut P.O. Box 6573/14, Lebanon
Corrado Boragno: Department of Physics (DIFI), University of Genoa, 16146 Genoa, Italy
Daniele D. Caviglia: Cosmic Lab, DITEN, University of Genoa, 16145 Genoa, Italy

Energies, 2021, vol. 14, issue 7, 1-14

Abstract: Sensor nodes have been assigned a lot of tasks in a connected environment that is growing rapidly. The power supply remains a challenge that is not answered convincingly. Energy harvesting is an emerging solution that is being studied to integrate in low power applications such as internet of things (IoT) and wireless sensor networks (WSN). In this work an interface circuit for a novel fluttering wind energy harvester is presented. The system consists of a switching converter controlled by a low power microcontroller. Optimization techniques on the hardware and software level have been implemented, and a prototype is developed for testing. Experiments have been done with generated input signals resulting in up to 67% efficiency for a constant voltage input. Other experiments were conducted in a wind tunnel that showed a transient output that is compatible with the target applications.

Keywords: energy harvesting; switching converter; optimization; wind energy; maximum power point tracking (MPPT) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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