Abstract
This paper proposes a 3.3-kW bi-directional EV charger with V2G and V2H functions. The bi-directional EV charger consists of a DC-DC converter and a DC-AC inverter. The proposed EV charger is suitable for wide battery voltage control due to the two-stage configuration of the DC-DC converter. By employing a fixed-frequency series loaded resonant converter as the isolated DC-DC converter, zero-current-switching can be achieved regardless of battery voltage variation, load variation, and power flow. A 3.3-kW prototype of the proposed EV charger has been built and verified with experiments, and indicates a maximum efficiency of 94.39% and rated efficiency of 94.23%.
| Translated title of the contribution | A 3.3kW Bi-directional EV Charger with V2G and V2H function |
|---|---|
| Original language | Korean |
| Pages (from-to) | 31-37 |
| Number of pages | 7 |
| Journal | 전력전자학회 논문지 |
| Volume | 20 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 2015 |
