Research on the integration method of power transfer and data communication based on LCL resonant topology

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Publication Details

Journal
Electric Power Systems Research
Published
2026-09-17
DOI
https://doi.org/10.1016/j.epsr.2026.114219
Primary Topic
Power Line Communications and Noise
Type
article
Field-Weighted Citation Impact
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article

Research on the integration method of power transfer and data communication based on LCL resonant topology

Dianli Hou, Xiaodong Li, Jingru Li, Xiaohan Lin
Electric Power Systems Research
Power Line Communications and Noise
article

Research on the integration method of power transfer and data communication based on LCL resonant topology

Dianli Hou, Xiaodong Li, Jingru Li, Xiaohan Lin
article en

Abstract

To address the limitations of traditional Power Line Carrier (PLC) communication, which can only transmit weak signals and struggles to balance high-power supply in strong interference environments, this paper proposes a power and signal integration method based on an LCL resonant topology. Unlike conventional PLC that superimposes communication signals onto the power-frequency grid, this scheme utilizes the LCL resonant network to construct a physical channel characterized by "isolation at power frequency and conduction at high frequency." This enables efficient transmission of hundred-watt-level high-frequency power while simultaneously performing narrowband data communication. By establishing a fundamental equivalent model of the system, the dual mechanisms of impedance matching and bandpass filtering of the LCL topology near the resonant frequency are revealed. This demonstrates its feasibility in ensuring power transfer efficiency while naturally suppressing power-frequency and broadband noise through frequency selectivity. Simulation and experimental results show that the system can stably deliver hundred-watt-level power at a resonant frequency of 20 kHz. It exhibits excellent robustness in noisy environments, achieving a Bit Error Rate (BER) of 0.0649 even with a Gaussian white noise Signal-to-Noise Ratio (SNR) as low as 5 dB. This research achieves the integrated "power supply and communication" functionality over power lines, offering a highly reliable and high-power-density transmission solution for local energy internet applications in complex electromagnetic environments.

Electric Power Systems ResearchVol. 265
Ludong University (CN), Yantai University (CN)
Affordable and clean energy
Openalex Percentile: Top 21%
Power Line Communications and Noise
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