Solar Photovoltaic Grid Inverters

The solar photovoltaic connecting grid power is one of the important solar photovoltaic applications. It shows the meaning of doing research work to the application and gives the recent status on this aspect inside and outside the country. By the research of the inverter system at unity power factor, which is basic on the 80cl96MC microchip computer, the concerned control model is established, and the inverter for the solar PV connecting grid power is made out by the whole software and hardware design. So the connecting grid power by using solar PV is realized. In the inverter, through the compared with several current control methods, the new type current pre-estimation control technology and the regulation control technology of current tracing are adopted. Meanwhile microprocessor control technology and the photovoltaic application technology are integrated in. All of these made the grid current in sine and unity power factor.