Highly efficient harvesting of electric-field energy from Maxwell’s displacement current by managing charge transfer

Hu, Dongyang; Wang, Qianwang; Zheng, Dongping; Huang, Xiaolong; Wu, Zufen; Wang, Feng; Xu, Sixing; Chen, She

doi:10.1016/j.nanoen.2024.110197

Nano Energy

2024

DOI: 10.1016/j.nanoen.2024.110197

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Highly efficient harvesting of electric-field energy from Maxwell’s displacement current by managing charge transfer

Dongyang Hu,

Qianwang Wang,

Dongping Zheng

et al.

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Cited by 2 publications

References 33 publications

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Hybrid Nanogenerator Harvesting Electric‐Field and Wind Energy for Self‐Powered Sensors on High‐Voltage Transmission Lines

Huang,

Hu,

Wang

et al. 2024

Adv Funct Materials

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Triboelectric nanogenerators (TENGs) show potential for powering distributed sensors in the smart grids. However, most studies on TENG's applications for energy harvesting from transmission lines primarily focus on vibration and wind energy, neglecting the abundant electric‐field energy from transmission systems. This study proposes a triboelectric‐electrostatic hybrid energy harvester (TEHEH) that integrates a triboelectric nanogenerator with an electric‐field energy harvester (EFEH) to simultaneously capture wind energy and electric‐field energy from the surroundings of transmission lines. The TENG and EFEH can generate open‐circuit voltages of 1280 and 2800 V, respectively, with output powers of 14.3 and 28.9 mW. Hybrid energy harvesting achieves an average power of 6.1 times that of TENG and 2.4 times that of EFEH, demonstrating its superiority. The dual‐channel energy management circuit, utilizing a gas discharge tube and the LTC‐3588, enables the hybrid nanogenerator to effectively power a wireless sensor node, demonstrating its practicality in the complex environments of power transmission lines. This work offers robust technical support for the development of self‐powered monitoring devices on high‐voltage transmission systems.

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Hybrid Nanogenerator Harvesting Electric‐Field and Wind Energy for Self‐Powered Sensors on High‐Voltage Transmission Lines

Huang,

Hu,

Wang

et al. 2024

Adv Funct Materials

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Hybrid Triboelectric‐Electromagnetic‐Electric Field Energy Harvester for Simultaneous Wind and Electric Field Energy Capture in High‐Voltage Transmission System

Wang,

Hu,

Huang

et al. 2024

Advanced Energy Materials

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With the development of smart grids, efficient condition monitoring of high voltage transmission system has become crucial, necessitating reliable power supplies for distributed sensors. Traditional energy harvesters often focus on either internal or external sources, limiting overall efficiency. This study introduces a triboelectric‐electromagnetic‐electric field hybrid energy harvester (TEE‐HEH) that synergistically integrates triboelectric nanogenerators (TENGs), electromagnetic generators (EMGs), and electric field energy harvesters (EEHs) to simultaneously capture electric field and wind energy. Electric field energy is harvested via displacement currents between transmission lines and the ground, while TENGs and EMGs efficiently capture low‐ and high‐speed wind energy, respectively, enabling broadband harvesting (2.3–10 m s−1). The synergistic combination of TENG, EMG, and EEH within the TEE‐HEH leads to significantly enhanced energy capture efficiency from multiple sources. At a wind speed of 5 m s−1, a transmission line voltage of 25 kV, and a distance of 1.5 m, the TEE‐HEH achieved peak power outputs of 18.5 mW (TENG), 262 mW (EMG), and 1.85 mW (EEH), demonstrating enhanced energy collection efficiency. An environmental monitoring system has been powered, demonstrating the TEE‐HEH's practicality for dual‐source energy harvesting in smart grid applications.

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Highly efficient harvesting of electric-field energy from Maxwell’s displacement current by managing charge transfer

Cited by 2 publications

References 33 publications

Hybrid Nanogenerator Harvesting Electric‐Field and Wind Energy for Self‐Powered Sensors on High‐Voltage Transmission Lines

Hybrid Nanogenerator Harvesting Electric‐Field and Wind Energy for Self‐Powered Sensors on High‐Voltage Transmission Lines

Hybrid Triboelectric‐Electromagnetic‐Electric Field Energy Harvester for Simultaneous Wind and Electric Field Energy Capture in High‐Voltage Transmission System

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