Classification of PV-grid connected system

PV-grid connected system can be classified into two:
1. Central system

• This system involves large PV array up to few Megawatt size.
• It is used to transfer large amount of power to the grid through three phase connection.

Central system (Courtesy SMA Technology)

2. Distributed system.

    Subdivided further into types:

• Commercial system. The power is usually greater than 10kWp and the panels are located on commercial business building. Usually, the power generated from PV arrays is used for their own consumption.
• Domestic system. The power is typically from 1 to 5kWp and the panels are installed on the roof of houses.