An ultra-compact lightweight electromagnetic generator enhanced with Halbach magnet array and printed triphase windings

Zhou, Xu; Wang, Kangda; Li, Siyu; Wang, Yadong; Sun, Daoyu; Wang, Longlong; He, Zhizhu; Tang, Wei; Liu, Huicong; Jin, Xiaoping; Li, Zhen

doi:10.1016/j.apenergy.2023.122075

Cited by 8 publications

(1 citation statement)

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“…This impressive power density underscores the potential of wind power generation as a viable solution to the power supply conundrum faced by sensors in smart agriculture. Wind power generation technology includes electromagnetic generator (EMG), − triboelectric nanogenerator (TENG), − and piezoelectric generator (PEG) . Among them, the triboelectric-electromagnetic hybrid generator (TEHG) has received extensive research in recent years.…”

Section: Introductionmentioning

confidence: 99%

Steady Output Triboelectric-Electromagnetic Hybrid Generator with Variable Drag Turbine Blades for Natural Wind Energy Harvesting

Wang,

et al. 2024

ACS Appl. Mater. Interfaces

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In recent years, the triboelectric-electromagnetic hybrid generator (TEHG) has been widely studied. However, the problems of unsteady output and high starting wind speed of traditional TEHG in the wind energy environment have not been effectively solved. This work introduces an innovative solution in the form of a steady output triboelectric-electromagnetic hybrid generator (SO-TEHG) with variable drag turbine blades. The SO-TEHG integrates the energy management circuit to output steady electric energy under random wind conditions. In addition, the integration of variable drag turbine blades with the triboelectric nanogenerator (TENG) reduces the wind speed threshold required for SO-TEHG activation. In comparison to the traditional turbine blades, which necessitate a minimum wind speed of 3 m/s, the SO-TEHG's innovative design allows it to commence power generation at a lower 2 m/s wind speed, producing an additional output of 50 V. This enhanced starting capability in mild breezes positions the SO-TEHG as an ideal power source for applications. In practical farmland settings, experimental results conclusively demonstrate the SO-TEHG's ability to successfully activate soil hygrothermographs and hydrogen sensors. As a steady power source driven by gentle winds, the SO-TEHG holds tremendous promise for advancing smart agriculture.

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