Abstract
A single and three phase-compatible single-stage EV charger without electrolytic capacitor is proposed in this study. DC battery-charging current is inherently guaranteed in the three-phase grid due to three output currents with a phase shift of 120° between each other. The proposed EV charger can provide a DC battery charging current for the single-phase grid through the integrated active power decoupling circuit without using additional switches. The proposed EV charger ensures ZVS turn-on of all switches with wide grid and battery voltage ranges. The 11 kW prototype of the proposed EV charger demonstrates a peak efficiency of 97.01% and a power density of 5.58 kW/L.
| Translated title of the contribution | A 11 kW 5.58 kW/L Electrolytic Capacitor-less EV Charger With Single- and Three-Phase Compatibility |
|---|---|
| Original language | Korean |
| Pages (from-to) | 277-284 |
| Number of pages | 8 |
| Journal | 전력전자학회 논문지 |
| Volume | 26 |
| Issue number | 4 |
| DOIs | |
| State | Published - Aug 2021 |