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Title:Designing an electromechanical generator for energy harvesting
Authors:ID Pranjić, Franjo (Author)
ID Smolar, Nejc (Author)
ID Virtič, Peter (Author)
Files:.pdf Designing_an_electromechanical_generator_Pranjic_2021.pdf (3,12 MB)
MD5: F32BE60558E60BA874A32D102B2424DB
 
URL https://www.fe.um.si/e-jet/44-2021-1/3319-december-2021.html
 
Language:English
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FE - Faculty of Energy Technology
Abstract:Five different designs of tubular electromechanical generator for low frequency energy harvesting have been investigated in this paper. In order to design a simple and robust generator, models were constructed out of permanent magnets, steel and windings. In all five generator models, round movers were used in spherical and cylindrical form- for four models solely permanent magnets were used, and in one model, there was steel present in the mover. The movers are slid or rolled through a tube, and induce voltage in the stator winding. All windings were constructed with the same cross- -section dimensions and number of turns. To compare different models, 3D analysis with the Finite Element Method was performed, in order to determine the magnetic flux through the windings. The induced voltage was calculated using the results of the analysis. As a result of the different winding geometries, the average turn length varied for the different designs, subsequently altering resistance and inductance, which affected the generator`s power output and losses. To simulate the generator`s dynamics, an equivalent circuit model was constructed using the Simulink software and data obtained previously from a 3D electromagnetic analysis. With the Simulink model, we coupled the mechanical and electrical systems together to acquire the harvester yields.
Keywords:energy harvest, linear generator, permanent magnets, Finite Element Method
Publication status:Published
Publication version:Version of Record
Publication date:01.12.2021
Publisher:Fakulteta za energetiko Univerze v Mariboru
Year of publishing:2021
Number of pages:str. 41-58
Numbering:letn. 14, št. 4
PID:20.500.12556/DKUM-86326 New window
UDC:620.9
ISSN on article:1855-5748
COBISS.SI-ID:99838467 New window
Publication date in DKUM:13.11.2023
Views:302
Downloads:5
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
PRANJIĆ, Franjo, SMOLAR, Nejc and VIRTIČ, Peter, 2021, Designing an electromechanical generator for energy harvesting. Journal of energy technology [online]. 2021. Vol. 14, no. 4, p. 41–58. [Accessed 21 January 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=86326
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Record is a part of a journal

Title:Journal of energy technology
Publisher:Fakulteta za energetiko
ISSN:1855-5748
COBISS.SI-ID:243311360 New window

Secondary language

Language:Slovenian
Title:Načrtovanje elektromehanskega generatorja za izrabo energije gibanja
Abstract:V članku je predstavljenih 5 različnih izvedb cevnega nizkofrekvenčnega elektromehanskega generatorja za izrabo energije gibanja. Z namenom oblikovanja preprostega in robustnega generatorja so modeli sestavljeni iz trajnih magnetov, jekla in navitij. Pri vseh modelih generatorjev sta za okrogli gibljivi del uporabljeni sferična in cilindrična oblika - pri štirih modelih so uporabljeni izključno trajni magneti, pri enem pa je prisotno jeklo. Gibljivi del drsi ali pa se valja skozi cev in pri tem inducira napetost v navitju statorja. Pri vsakem modelu imajo navitja enak presek ter enako število ovojev. Za primerjavo različnih modelov je bila izvedena 3D-analiza z uporabo metode končnih elementov za določitev magnetnega pretoka skozi navitja, na podlagi katerih je izračunana inducirana napetost. Zaradi različnih geometrij navitij se je povprečna dolžina ovoja pri različnih izvedbah spreminjala, kar je posledično spreminjalo upornost in induktivnost ter s tem vplivalo na izhodno moč in izgube generatorja. Za simulacijo dinamike generatorjev je bilo z uporabo programa Simulink in predhodno pridobljenih podatkov iz 3D‐elektromagnetne analize določeno nadomestno vezje modela. Za določanje izplena smo z modelom v programu Simulink združili mehanske in električne sisteme
Keywords:zbiranje energije, linearni generator, trajni magneti, metoda končnih elementov


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  1. Journal of energy technology

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