期刊
NANO ENERGY
卷 89, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2021.106335
关键词
Triboelectric nanogenerator; Current source; Universal equivalent circuit model; Experiment verification; Carrying capacity
类别
资金
- National Key R&D Project from the Minister of Science and Technology [2016YFA0202701, 2016YFA0202704]
- Beijing Municipal Science and Technology Commission [Z171100002017017]
The universal equivalent circuit model of triboelectric nanogenerators (TENGs) is a crucial tool in the field of energy harvesting and self-powered sensing, providing theoretical guidance for high-performance supply and grid-connected power generation applications. The model establishes electrical standards for the internal circuit of the TENG and demonstrates distinct output characteristics such as constant current, maximum power, and constant voltage regions. Experiments verify that the TENG can be considered a current source with a resistance of mega-ohms and a capacitance of nano-farads.
In the field of energy harvesting and self-powered sensing, the universal equivalent circuit model of triboelectric nanogenerators (TENGs) is an important development tool for research and applications. Such a universal model of the current source is established to first order for the basic operating modes of a TENG, which provide the related theoretical models and electrical models used in simulation. The universal first-order equivalent circuit model demonstrates that the carrying capacity of a TENG separates into three regions of distinct output characteristics, namely, constant current, maximum power, and constant voltage. Moreover, employing electrometers, an electrometer and multimeters, and TENGs in series and parallel in successive experiments, we verify that the TENG can be considered a current source with a resistance of mega-ohms and a capacitance of nano-farads. Overall, our first-order model sets electrical standards for the internal circuit of the TENG and therefore provides theoretical guidance that lays the foundation for applications in high-performance supply and grid-connected power generation.
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