Abstract
Throughout the world, wind energy is widely distributed as one of the most universal energy sources in nature, containing a gigantic reserve of renewable and green energy. At present, the main way to capture wind energy is to use an electromagnetic generator (EMG), but this technology has many limitations; notably, energy conversion efficiency is relatively low in irregular environments or when there is only a gentle breeze. A triboelectric nanogenerator (TENG), which is based on the coupling effect of triboelectrification and electrostatic induction, has obvious advantages for mechanical energy conversion in some specific situations. This review focuses on wind energy harvesting by TENG. First, the basic principles of TENG and existing devices’ working modes are introduced. Second, the latest research into wind energy-related TENG is summarized from the perspectives of structure design, self-power sensors and systems. Then, the potential for large-scale application and hybridization with other energy harvesting technologies is discussed. Finally, future trends and remaining challenges are anticipated and proposed.
Highlights
Advances and Future Perspectives.On account of the exponential growth of fossil fuel consumption, energy supplies will continue to face severe challenges for as long as emissions of greenhouse gases contribute to global warming [1,2]
The method of converting wind energy into electric energy was based on the principle of electromagnetic induction and turbine structure
Wang proposed a new energy harvesting method known as a triboelectric nanogenerator (TENG) [7]
Summary
Most of the structures based on this method should be constructed with bulky and heavy magnet components and erected in places where powerful winds are common. To date, these types of wind generators have not been fully utilized in distributed miniature power supply and wind energy resources with low speed. In 2012, Professor Z.L. Wang proposed a new energy harvesting method known as a triboelectric nanogenerator (TENG) [7]. Wang proposed a new energy harvesting method known as a triboelectric nanogenerator (TENG) [7] It is based on the coupling effect of contact electrification and electrostatic induction [8]. Some remaining challenges and opportunities for the future development of TENG for wind energy harvesting are discussed
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