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000590AG
2 - Characteristics
C
haracteristics of a photovoltaic generator
A PV generator consists of an assembly of photovoltaic modules that
transform solar radiation into DC electrical energy and can be made up
of:
Strings: number (X) of PV modules connected in series
Array: group of X strings connected in parallel
S
trings and Arrays
The
string technology was developed to significantly reduce the
installation costs of a photovoltaic system, mainly associated to wiring on
the DC side of the inverter and subsequent distribution on the AC side.
A photovoltaic panel consists of many photovoltaic cells mounted on the
same support.
• A string consists of a certain number of panels connected in series.
• An
array consists of two or more strings connected in parallel.
Large photovoltaic systems can include multiple arrays connected to one
or more inverters.
The greater the number of panels in each string, the lower the cost and
the less complex the wiring connections of the system.
The current of each array must fall within the limits of the inverter.
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CELL
PANEL
STRING
ARRAY
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