| Title |
DC-Linked-Type Boost Inverter for Single-Phase Grid-Connected Systems |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2016.30.9.040 |
| Keywords |
H-Bridge Inverter ; Single Phase Inverter ; Grid Connected ; PWM inverter ; Phase-Locked Loop(PLL) ; Boost Inverter ; Shoot-Through |
| Abstract |
With the increasing use of the renewable energy sources, the application of distributed generation (DG) in the distribution system has gained greater attention. The DG systems are powered by micro sources such as fuel cells, photovoltaic and wind energy that generate power at a very low voltage are unsuitable for grid connection directly without a transformer. This paper presents a single phase DC-linked-type quasi-switched boost inverter (DC-linked-type qSBI) for grid connection directly without using transformers. The proposed system also solves the shoot-through problem in the H-bridge of traditional multilevel inverters. Further, DC-linked-type qSBIs have a low voltage stress on the capacitor. A control strategy for the proposed system and grid connection are shown. Simulation and experimental results are shown to verify the validity of the proposed control strategy. |