Sviluppi del trasferimento di energia elettrica mediante risonatori piani a spirale

Puccetti, Giovanni (2015) Sviluppi del trasferimento di energia elettrica mediante risonatori piani a spirale, [Dissertation thesis], Alma Mater Studiorum Università di Bologna. Dottorato di ricerca in Ingegneria elettrotecnica, 27 Ciclo. DOI 10.6092/unibo/amsdottorato/7115.
Documenti full-text disponibili:
Documento PDF (English) - Richiede un lettore di PDF come Xpdf o Adobe Acrobat Reader
Download (23MB) | Anteprima


The aim of this thesis is to develop a depth analysis of the inductive power transfer (or wireless power transfer, WPT) along a metamaterial composed of cells arranged in a planar configuration, in order to deliver power to a receiver sliding on them. In this way, the problem of the efficiency strongly affected by the weak coupling between emitter and receiver can be obviated, and the distance of transmission can significantly be increased. This study is made using a circuital approach and the magnetoinductive wave (MIW) theory, in order to simply explain the behavior of the transmission coefficient and efficiency from the circuital and experimental point of view. Moreover, flat spiral resonators are used as metamaterial cells, particularly indicated in literature for WPT metamaterials operating at MHz frequencies (5-30 MHz). Finally, this thesis presents a complete electrical characterization of multilayer and multiturn flat spiral resonators and, in particular, it proposes a new approach for the resistance calculation through finite element simulations, in order to consider all the high frequency parasitic effects. Multilayer and multiturn flat spiral resonators are studied in order to decrease the operating frequency down to kHz, maintaining small external dimensions and allowing the metamaterials to be supplied by electronic power converters (resonant inverters).

Tipologia del documento
Tesi di dottorato
Puccetti, Giovanni
Dottorato di ricerca
Scuola di dottorato
Ingegneria industriale
Settore disciplinare
Settore concorsuale
Parole chiave
wireless power transfer, inductive power transfer, spiral resonator, spiral inductor, multilayer spiral inductor, metamaterial, magnetic metamaterial
Data di discussione
13 Maggio 2015

Altri metadati

Statistica sui download

Gestione del documento: Visualizza la tesi