Zero-Voltage-Switching PWM Full-Bridge Converter for Onboard Charging of Battery of Electric Vehicles

Gall, Jonathan Henrik (2019) Zero-Voltage-Switching PWM Full-Bridge Converter for Onboard Charging of Battery of Electric Vehicles. [Laurea magistrale], Università di Bologna, Corso di Studio in Ingegneria dell'energia elettrica [LM-DM270], Documento full-text non disponibile
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Abstract

This thesis gives a description of working principles of a Phase-Shifted Full-Bride PWM ZVS converter using a Full-Wave rectifying output as well as a Double Current Rectifier. After a description of each topology and some differences between the two topologies, a hybrid solution is presented. The hybrid configuration is a combined FW and DCR, in an interleaved connection. By the opening and closing of a switch that is located between the two output stages, either a DCR-DCR or DCR-FW rectifying output stage is used for the converter. This allows for dynamic turns ratio of the step-up transformer of the converter, as well as reduced primary and secondary side currents. The voltage for when to switch between the two output configurations is derived analytically. Simulations carried out in LTSpice to verify the analytical results and the hypothesis of reduced currents and losses are presented in the end.

Abstract
Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Gall, Jonathan Henrik
Relatore della tesi
Correlatore della tesi
Scuola
Corso di studio
Indirizzo
Electrical Engineering
Ordinamento Cds
DM270
Parole chiave
DCDC converter,ZVS
Data di discussione della Tesi
15 Marzo 2019
URI

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