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Electromagnetic Energy Harvester on Overhead Power Distribution Lines for Atmospheric Sensors

Author(s):

Snehal Gangadhar Waghmare , VAPM ALMALA; Mitkari Shubhangi Parappa, VAPM ALMALA; Zurule Omprakash S, VAPM ALMALA; Gawade Anjali M, VAPM ALMALA

Keywords:

Atmospheric Sensors, Hypothetical Energy Harvester

Abstract

In this paper we present a small, credit-card sized, and low-cost electromagnetic energy harvester that couples energy from one conductor of an overhead power distribution line. We use a rectangular coil, placed near the power line without encircling it, to extract electrical power from the time-varying magnetic field. The addition of a U- shaped electrical steel sheet (a high-permeability material typically used in transformers) near the coil significantly increases the magnetic flux through the coil and consequently raises the output power. Experiments have shown that the harvester with an optimal load resistance obtains 230 mW (AC) when the power-line conductor current is 50 Arms. The energy harvester is able to power a wireless gas sensor board having a carbon monoxide and an ozone sensors at 10 Arms. In this paper, we describe the design, modeling, and experimental study of the electromagnetic energy harvester with an output power range between several milliwatts to hundreds of milliwatts from an ac current up to 50 Arms. We anticipate that the energy harvesters could be installed inexpensively on the overhead power distribution lines by a utility operator using a hot stick.

Other Details

Paper ID: IJSRDV7I10502
Published in: Volume : 7, Issue : 1
Publication Date: 01/04/2019
Page(s): 567-569

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