Abstract
The realization of dc-dc converters performs a vital function in exploiting renewable energy sources such as solar photovoltaic (PV) and fuel cell applications. This paper demonstrates a single-switch unidirectional buck-boost dc-dc converter for continuous power flow control, excluding the hybrid switched-capacitor. The proposed converter utilizes a limited number of passive components, only four diodes and three inductors required, in addition to six capacitors. The converter can operate at a wide input voltage range with continues input current. The converter has experimented under real-time conditions with 660 W PV system. The obtained efficiency ranges from 93% to 98%. Furthermore, the converter has interfaced with 550 W fuel cell operated under different fuel pressure. The realized efficiency ranges from 91% to 97%. The maximum measured inductance current ripple is limited to under 0.70 A in both scenarios, whereas 0.16 V is the maximum output voltage ripple.
| Original language | English |
|---|---|
| Pages (from-to) | 1241-1255 |
| Number of pages | 15 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 47 |
| Issue number | 2 |
| Early online date | 10 Nov 2021 |
| DOIs | |
| Publication status | Published - 5 Jan 2022 |
