PV systems can be designed:
-To
provide DC and/or AC power service.
-Can
operate interconnected with or independent of the utility grid.
-Can
be connected with other energy sources and energy storage systems.
The two principal classifications of PV systems are the following:
1. Grid-conneced or utility-interactive system, and.
2. Stand-alone system.
2. Stand-alone system.
1 ) Grid-Connected PV System
Grid-connected or utility-interactive PV systems are
designed to operate in parallel with and interconnected with the electric
utility grid. The primary component in grid-connected PV systems is the
inverter, or power conditioning unit (PCU).
2) Stand-Alone PV System
Stand-alone PV systems are designed to operate independent
of the electric utility grid, and they are generally designed and sized to
supply certain DC and/or AC electrical loads.
3) Hybrid System
A hybrid renewable energy system is a system in which two or
more supplies from different renewable energy sources (e.g., solar-thermal,
solar-photovoltaic, wind, biomass, hydropower) are integrated to supply
electricity to the same demand.
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