کنفرانس مهندسی برق ایران

صفحه اصلی / سی و یکمین کنفرانس بین المللی مهندسی برق

A Bidirectional Transformerless Resonant Converter for Capacitive Power Transmission for Electric Vehicle and PowerWall Applications

نویسندگان :

Jasem Shahsevani¹ Reza Beiranvand²

1- دانشگاه تربیت مدرس 2- دانشگاه تربیت مدرس

کلمات کلیدی :

Capacitive coupling wireless power transfer،power-wall،resonant conversion،soft switching،step-up/down

چکیده :

In this paper a transformerless bidirectional con-verter with two resonant frequencies for EV (Electric Vehi-cle) charging by capacitive coupling wireless power transfer (CCWPT) and power-wall applications has been proposed. The converter operates in both step-up and down operation modes with soft-switching. There is proper isolation between input and output sides, due to using capacitive coupling technique. The converter efficiency is improved and its volume is decreased, due to its transformerless configuration. Step-up and down operations are obtained by designing the converter between its two resonant frequencies. Both full-bridge and half-bridge operation modes have been used to properly limit the switching frequency. Finally, a 200- 1000 W converter with 200-400 V input voltage and 300 V output voltage and 96% peak-efficiency values has been designed and simulated by ORCAD PSPICE under the different conditions to show its good performance.