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Article: Three-dimensional mathematical modelling and dynamic analysis of freestanding triboelectric nanogenerators

TitleThree-dimensional mathematical modelling and dynamic analysis of freestanding triboelectric nanogenerators
Authors
Keywordsdisplacement current
dynamic simulation model
energy harvesting system
freestanding triboelectric nanogenerators
three-dimensional mathematical model
Issue Date2022
Citation
Journal of Physics D: Applied Physics, 2022, v. 55, n. 34, article no. 345501 How to Cite?
AbstractEnergy harvesting system based on triboelectric nanogenerators (TENGs) has aroused wide interest from many researchers since it integrates multiple disciplines together including electromagnetics, electric circuit theory, materials science and mechanical engineering. Accurate modeling of a TENG is an indispensable part for revealing the relationships and interactions among physical quantities from different areas. Here, a three-dimensional mathematical model of a contact-mode freestanding TENGs (CF-TENGs) is built with a combination of physical abstraction and geometry configuration, which makes it possible to dynamically analyze the variations of the field and circuit quantities. An accurate Norton’s equivalent circuit model that consists of a current source in parallel with a pure capacitive reactance is proposed. Based on this model the reason for identifying the displacement current as the driving force of TENGs is elucidated, and quantitatively determine the current flowing through the external load resistor and the internal equivalent capacitor. More importantly, a universal dynamic simulation model consisting of a quasi-electrostatic model and a circuit model for the TENG-based energy harvesting system is presented. The presented composite model exhibits an obvious advantage in terms of revealing the dynamic output of TENGs with arbitrary geometry and charge distribution. Finally, based on the characteristics of linearity and time-invariance of the CF-TENG, general optimization strategies are pinpointed, which allow us to accurately predict the maximum output efficiency (close to 82.5%).
Persistent Identifierhttp://hdl.handle.net/10722/317103
ISSN
2023 Impact Factor: 3.1
2023 SCImago Journal Rankings: 0.681
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGuo, Xin-
dc.contributor.authorShao, Jiajia-
dc.contributor.authorWillatzen, Morten-
dc.contributor.authorYang, Yi-
dc.contributor.authorWang, Zhong Lin-
dc.date.accessioned2022-09-19T06:18:48Z-
dc.date.available2022-09-19T06:18:48Z-
dc.date.issued2022-
dc.identifier.citationJournal of Physics D: Applied Physics, 2022, v. 55, n. 34, article no. 345501-
dc.identifier.issn0022-3727-
dc.identifier.urihttp://hdl.handle.net/10722/317103-
dc.description.abstractEnergy harvesting system based on triboelectric nanogenerators (TENGs) has aroused wide interest from many researchers since it integrates multiple disciplines together including electromagnetics, electric circuit theory, materials science and mechanical engineering. Accurate modeling of a TENG is an indispensable part for revealing the relationships and interactions among physical quantities from different areas. Here, a three-dimensional mathematical model of a contact-mode freestanding TENGs (CF-TENGs) is built with a combination of physical abstraction and geometry configuration, which makes it possible to dynamically analyze the variations of the field and circuit quantities. An accurate Norton’s equivalent circuit model that consists of a current source in parallel with a pure capacitive reactance is proposed. Based on this model the reason for identifying the displacement current as the driving force of TENGs is elucidated, and quantitatively determine the current flowing through the external load resistor and the internal equivalent capacitor. More importantly, a universal dynamic simulation model consisting of a quasi-electrostatic model and a circuit model for the TENG-based energy harvesting system is presented. The presented composite model exhibits an obvious advantage in terms of revealing the dynamic output of TENGs with arbitrary geometry and charge distribution. Finally, based on the characteristics of linearity and time-invariance of the CF-TENG, general optimization strategies are pinpointed, which allow us to accurately predict the maximum output efficiency (close to 82.5%).-
dc.languageeng-
dc.relation.ispartofJournal of Physics D: Applied Physics-
dc.subjectdisplacement current-
dc.subjectdynamic simulation model-
dc.subjectenergy harvesting system-
dc.subjectfreestanding triboelectric nanogenerators-
dc.subjectthree-dimensional mathematical model-
dc.titleThree-dimensional mathematical modelling and dynamic analysis of freestanding triboelectric nanogenerators-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/1361-6463/ac7365-
dc.identifier.scopuseid_2-s2.0-85131682294-
dc.identifier.volume55-
dc.identifier.issue34-
dc.identifier.spagearticle no. 345501-
dc.identifier.epagearticle no. 345501-
dc.identifier.eissn1361-6463-
dc.identifier.isiWOS:000806522100001-

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