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Self-Regulating Wind Speed Adaptive Mode Switching for Efficient Wind Energy Harvesting Towards Self-Powered Wireless
Ruifeng Li1, Chenming Wang1, Yiao Pan1
1School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, No. 1 Jinji Road, Guilin 541004, China.
Micromachines
|March 28, 2026
Summary
A novel self-regulating triboelectric nanogenerator (SR-TENG) harvests wind energy efficiently across various speeds. This innovation enables sustainable power for Internet of Things (IoT) devices and advanced sensing applications.
Area of Science:
- Energy Harvesting
- Nanotechnology
- Internet of Things (IoT)
Background:
- Triboelectric nanogenerators (TENGs) offer potential for powering distributed IoT nodes using wind energy.
- Practical TENG efficiency and stability are challenged by fluctuating wind speeds.
Purpose of the Study:
- To develop a self-regulating TENG (SR-TENG) that overcomes limitations of wind variability for IoT applications.
- To achieve efficient and stable wind energy harvesting across a wide range of wind speeds.
Main Methods:
- Designed an SR-TENG utilizing synergistic centrifugal, elastic, and frictional forces for automatic mode switching.
- Optimized the SR-TENG structure for enhanced performance and durability.
- Integrated the SR-TENG with a power management circuit for practical application testing.
Main Results:
- Achieved an ultra-low start-up wind speed of 0.86 m/s.
- Demonstrated excellent durability over 23,000 s of continuous operation.
- Reached peak open-circuit voltage of 140 V, short-circuit current of 12.5 μA, and transferred charge of 300 nC.
- Showcased a 30.39-fold increase in effective output power and a 4-fold faster charging rate.
- Successfully powered a wireless temperature-humidity sensor for real-time data transmission.
Conclusions:
- The SR-TENG provides a robust solution for sustainable wind energy harvesting, addressing the unpredictability of wind.
- This technology holds significant potential for advanced self-powered sensing and distributed IoT systems.
Keywords:
power management circuitself-regulating mechanismtriboelectric nanogeneratorwind energy harvestingwireless temperature-humidity sensingMore Related Videos
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