Abstract
This paper presents a new single-phase switched-coupled-inductor dc-ac inverter featuring higher voltage gain than the existing single-phase qZ-source and semi-Z-source inverters. Similar to the single-phase qZ-source and semi-Z-source inverters, the proposed inverter also has common grounds between the dc input and ac output voltages, which is beneficial especially for photovoltaic inverter systems. The inverter volume and maximum current flowing can be reduced significantly through the coupling of all inductors. A theoretical analysis of the proposed inverter is described and a 280-W experimental prototype is built to verify the performance of the inverter.
| Original language | English |
|---|---|
| Pages (from-to) | 5016-5022 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Power Electronics |
| Volume | 32 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 2017 |
Keywords
- Common ground
- dc-ac inverter
- high voltage gain
- qZ-source inverter
- single-phase inverter
- switched-coupled-inductor (SCL)
- Z-source inverter
