Highly Efficient Power-Line Energy Harvesting With Adaptive Matching Capacitance for Residential Self-Powered Sensing

IF 5.6 2区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Instrumentation and Measurement Pub Date : 2025-02-24 DOI:10.1109/TIM.2025.3545213

Qiuyu Chen;Jiawen Xu;Weiqun Liu;Ruqiang Yan

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引用次数: 0

Abstract

Sensor nodes for smart homes require sufficient energy to perform sensing, signal processing, and communication tasks. Magnetic field energy harvesting (MEH) from power lines emerges as a promising approach. In this study, we propose a novel method for harvesting magnetic power-line energy taking advantages of LC resonance. The system consists of magnetic coils and adjustable matching capacitance to create resonant units. With consideration of the nonlinearity of the MEH system, we illustrate how the system dynamics would shift under different currents in the power line. In response to these variations, a dynamic control strategy for adjusting the matching capacitance is proposed. Experimental studies reveal that the proposed MEH system achieves a maximum average output power of 0.31 mW at an optimal resistive load of 9 k

$\Omega $

under 0.04 Arms current at 50 Hz (3.88 mW/cm3/Arms). In addition, a fully functional wireless sensor node can be powered. The proposed strategy enhances both output power and adaptive capability of the MEH system, ensuring reliable performance in self-powered wireless monitoring of power cable conditions for residential and industrial buildings.

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来源期刊

IEEE Transactions on Instrumentation and Measurement 工程技术-工程：电子与电气

CiteScore

9.00

自引率

23.20%

发文量

1294

审稿时长

3.9 months

期刊介绍： Papers are sought that address innovative solutions to the development and use of electrical and electronic instruments and equipment to measure, monitor and/or record physical phenomena for the purpose of advancing measurement science, methods, functionality and applications. The scope of these papers may encompass: (1) theory, methodology, and practice of measurement; (2) design, development and evaluation of instrumentation and measurement systems and components used in generating, acquiring, conditioning and processing signals; (3) analysis, representation, display, and preservation of the information obtained from a set of measurements; and (4) scientific and technical support to establishment and maintenance of technical standards in the field of Instrumentation and Measurement.