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Development and Application of an Energy Harvesting Power Factor and Apparent Power Sensor

Authors:
Takaya Yoshitake
Shunkichi Takamatsu
Shinichiro Mito

Keywords: electrical power; electric field; noncontact measurement; energy harvesting; SDG

Abstract:
A contactless, wireless and battery-free alternating current (AC) apparent power and power factor sensor was developed. A current sensing transformer was not only used as a noncontact current sensor but also acted as a power supply for the sensor. The AC voltage waveform was measured without metal contacts using a piezoelectric film. A low-power circuit was designed to measure the power factor from the current and voltage waveforms. The data obtained from the developed sensor showed good agreement with the results from a commercially available power meter. The sensor developed in this work is expected to enable energy savings and carbon dioxide reduction in industrial applications.

Pages: 8 to 10

Copyright: Copyright (c) IARIA, 2021

Publication date: November 14, 2021

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-917-1

Location: Athens, Greece

Dates: from November 14, 2021 to November 18, 2021