| Abstract |
This article demonstrates a universal, single power conversion stage (1-S) current-fed bidirectional converter based on-board electric vehicle (EV) charger (OBC). The converter can be connected to either residential ac utility gird or solar photovoltaic (PV) array. Additionally, when connected to ac grid, the converter maintains unity power factor (UPF) and when connected to PV array, the power is extracted at the maximum power point (MPP). A laboratory prototype of 1.5 kW is developed to validate the theoretical analysis and can be connected to 230 V, 50 Hz ac mains voltage or 100-300 V PV array. The battery voltage range is of 300-400 V. |
