| Title |
Maximum Power Point Tracking Control for a Grid-Tie Photovoltaic Inverter |
| Keywords |
Grid-Tie ; Current Loop Transfer Function ; MPPT(Maximum Power Point Tracking) ; PV(Photo Voltaic) |
| Abstract |
Solar energy is desirable due to its renewable and pollution-free properties. In order to utilize the present utility grid infrastructure for power transmission and distribution, a dc-dc boost converter and grid connected dc-to-ac inverters are needed for solar power generation. The dc-dc boost converter allows the PV system to operate at high dc-link voltage. The single-phase inverter provides the necessary voltage and frequency for interconnection to the grid. In this paper, first, current loop transfer function of a single-phase grid-tie inverter has been systematically derived. Second, the MPPT of conductance increment method at converter side is proposed to supply the maximum power to the inverter side. Simulation results are shown to access the performance of PV system and its behaviour at the interconnection point. |